User manual | met_pro_ph_211_dean

MET-PRO
Global Pump Solutions
A Met-Pro Fluid Handling Technologies Business
Combining the Resources of Dean Pump, Fybroc & Sethco
DEAN PUMP® SERIES PH/PHP
Horizontal Process Pumps
DO NOT INSTALL, OPERATE, OR SERVICE THIS PUMP
BEFORE READING THE ENTIRE MANUAL
Instruction Manual MC 1.2.35
INDEX
Mechanical Design Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Standard Materials of Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Allowable Pump Suction Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Working Pressure vs. Pumping Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Product Inspection and Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Product Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Receiving Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation . . . . . . . . . . . . . . . . . . . . . .
Application and Reapplication . . . .
Pump Foundation . . . . . . . . . . . . .
Baseplate Mounting and Alignment
Suction and Discharge Piping . . . .
Pump and Driver Alignment . . . . . .
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.4
.4
.4
.4
.5
.5
Allowable Nozzle Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Instructions for Use of Allowable Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Pump Cooling Requirements . . . . . . . .
Seal Chamber Cooling . . . . . . .
Mechanical Seal Gland Cooling
Bearing Housing Cooling . . . . .
Cooling Water Piping . . . . . . . .
Cooling Water Flow Rates . . . . .
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.10
.10
.10
.10
.10
.10
Pump Heating Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Pump Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Starting the Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Pump Start Up Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Ordering Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Pump Designation Code for pH2110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
pH2110 Pump Section View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
pH2110 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Pump Designation Code for pH2140 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
pH2140 Pump Sectional View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
pH2140 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Pump Designation Code for pH2170/pH3170 . . . . . . . . . . . . . . . . . . . . . . . . . .15
pH2170/pH3170 Pump Sectional Views . . . . . . . . . . . . . . . . . . . . . . . . . .15
pH2170/pH3170 Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Pump Designation Code for pH2180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
pH2180 Pump Sectional View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
pH2180 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Disassembly and Assembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Installation and Maintenance of Seal Chamber Packing
Purpose of Lantern Ring . . . . . . . . . . . . . . . . . . .
Internal Seal Connection to the Lantern Ring . . . .
External Seal Connection to the Lantern Ring . . . .
Lantern Ring Not Used . . . . . . . . . . . . . . . . . . .
Packing Installation . . . . . . . . . . . . . . . . . . . . . .
Usual Causes of Packing Failure and
Excessive Seal Chamber Leakage . . . . . . . . . . .
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Installation of Standard Mechanical Seals
Single Inside Seals . . . . . . . . . . . .
Single Outside Unbalanced Seals . .
Double Inside Unbalanced Seals . .
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.23
.23
.23
.23
.23
.23
. . . . . . . . . . . . . . . . . . . .24
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.24
.24
.25
.25
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Ordering Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Installation, Operation and Maintenance pHP Self Priming Pumps
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
pHP2110/pHP2140 Pump Sectional Views . . . . . . . . . . .
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.26
.26
.26
.26
.27
Customer’s Plant Maintenance Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
SERIES PH
HORIZONTAL PROCESS PUMPS
STANDARD, HORIZONTAL, SINGLE STAGE, END SUCTION, OPEN IMPELLER, CENTRIFUGAL PROCESS PUMPS
pH2110 Series: Types pH2111, 2112, 2114, 2116, 2117, 2118 • pH2140 Series: Types pH2141, 2142, 2144, 2146, 2147, 2148
pH2170 Series: Types pH2171, 2172, 2174, 2176, 2177, 2178 • pH3170 Series: Types pH3171, 3172, 3174, 3176, 3177, 3178
pH2180 Series: Types pH2181, 2182, 2184, 2186, 2187, 2188
STANDARD MATERIALS OF CONSTRUCTION
MECHANICAL DESIGN SPECIFICATIONS
pH2110 pH2140
pHP2110 pHP2140
PUMP TYPE
Direction of Rotation
(Viewed from Coupling End)
Horsepower Rating
@ 3500 rpm
@ 1750 rpm
@ 1150 rpm
Hydrostatic Test Pressure
Corrosion Allowance
Impeller Balance
Flanges ANSI Class
Facing – standard
– optional
Finish
Stuffing box jacket pressure maximum
Bearing housing cooler pressure maximum
Maximum Suction Pressure
Bearings:
Thrust Bearing
Radial Bearing
Lubrication
Approximate oil capacity of bearing housing
Seal Chamber Dimensions:
Tapered Seal Chamber
Length (Depth)
Inside Diameter (Bore)
Shaft Sleeve Diameter
Cylindrical Seal Chamber
Length (Depth)
Inside Diameter (Bore)
Shaft Sleeve Diameter
Stuffing Box Dimensions:
Length (Depth)
Inside Diameter (Bore)
Shaft Sleeve Diameter
Lantern Gland Width
Packing Size – Square
Number of Rings with Lantern Ring
Number of Rings without Lantern Ring
Spacing with Lantern Ring
Pump Shaft Dimensions:
Span Between Bearings
Span Between Radial Bearing and Impeller
Diameter Under the Sleeve
Diameter with No Sleeve
Diameter at Coupling
Diameter Between Bearings
Diameter at Impeller
L3/D4 Ratio
Sleeved Shaft
Solid Shaft (No Sleeve)
CW
CW
pH2170
pH3170
pH2180
CW
CW
CW
Part No.
35 HP
100 HP
—
200 HP
—
15 HP
40 HP
100 HP
100 HP 125 HP
10 HP
30 HP
60 HP
—
75 HP
430 psig 430 psig 430 psig 565 psig 450 psig
1/8"
1/8"
1/8"
1/8"
1/8"
Single Plane Dynamic Balance
150
150
150
300
300
F.F.
F.F.
F.F.
F.F.
F.F.
R.F.
R.F.
R.F.
R.F.
R.F.
125 Ra
125 Ra
125 Ra
125 Ra
125 Ra
125 psig 125 psig 125 psig 125 psig 125 psig
125 psig 125 psig 125 psig 125 psig 125 psig
275 psig 275 psig 275 psig 375 psig 300 psig
5306
6207
Oil
26 oz
5309
6309
Oil
42 oz
7311 BG 7311 BG
6311
6311
Oil
Oil
36 oz
36 oz
5312
6312
Oil
64 oz
23/8"
27/8"
13/8"
31/16"
31/2"
13/4"
31/16"
37/8"
21/8"
31/16"
37/8"
21/8"
45/8"
41/4"
21/4"
17/8"
27/8"
13/8"
21/4"
31/2"
13/4"
23/16"
37/8"
21/8"
23/16"
37/8"
21/8"
21/8"
2"
13/8"
7/16"
5/16"
5
6
2-G-3
23/4"
21/2"
13/4"
5/8"
3/8"
5
7
2-G-3
23/4"
27/8"
21/8"
5/8"
3/8"
5
7
2-G-3
315/16"
513/16"
11/8"
13/8"
7/8"
11/2"
3/4"
63/8"
77/8"
11/2"
13/4"
11/8"
21/8"
11/4"
123
55
96
52
pH/pHP
1 x 11/2 x 6 pH2110
11/2 x 3 x 6
2x3x6
1 x 11/2 x 8
11/2 x 3 x 8/ 11/2 x 11/2 x 8
1 x 2 x 81/2 pH2140
11/2 x 3 x 81/2
2 x 3 x 81/2
3 x 4 x 81/2 #1
3 x 4 x 81/2 #2
1 x 2 x 10
11/2 x 3 x 10/ 2 x 2 10
2 x 3 x 10/ 3 x 3 x 10
3 x 4 x 10 #1/ 4 x 4 x 10
3 x 4 x 10 #2
11/2 x 3 x 111/2
2 x 3 x 111/2
3 x 4 x 111/2
4 x 6 x 111/2
11/2 x 3 x 131/2
2 x 3 x 131/2
3 x 4 131/2/ 4 x 4 131/2
4 x 6 x 131/2 pH2170
11/2 x 3 x 131/2 pH3170
2 x 3 x 131/2
3 x 4 x 131/2
4 x 6 x 131/2 pH2180
6 x 8 x 131/2
With
Balance Holes
3500 1750 1150
RPM
RPM RPM
110
115
115
110
110
110
110
110
185
185
185
180
175
180
180
180
180
180
105
105
170
150
165
165
165
240
200
195
195
200
230
195
195
185
205
200
180
180
190
200
185
185
185
240
Seal Chamber Pressure:
With Balance Holes: seal chamber pressure = suction pressure
Without Balance Holes: Pumps are normally furnished without balance holes.
seal chamber pressure = (suction pressure) + (Fn x sp. gr.)
275
275
C.I. (1)
316 (12) Alloy20 (2) CD4MCu
Hast.
Titanium
5
Casing
D.I. (10) 316 (12) Alloy20 (2) CD4MCu
Hast.
Titanium
5A
Casing Drain Plug
Hast.
Titanium
5C
Casing Stud Nut
±
Steel (4)
5D
Casing Capscrew
Casing Stud
≠s‡
±
Steel (11)
Steel (6)
7
Cradle Spacer
¨6‡
D.I. (13)
7G
Spacer to Brg. Hsg. Capscr.
¨=6‡
1020 Steel
Hast.
Titanium
1020 Steel 316 S/S
Alloy20
316 S/S
9
Bearing Housing Foot
¨
10
Shaft Sleeve
s=6‡
10K
Sleeve Key
s=6‡
13
Seal Chamber Gland
316 S/S
Alloy 20
316 S/S
Hast.
Titanium
14
Gland Stud
304 S/S
Alloy 20
304 S/S
Hast.
Titanium
15
17
304 S/S
Alloy 20 304 S/S
Teflon n
C.I. (1) 316 S/S Alloy 20
D.I. (10) 316 (12) Alloy 20 (2) CD4MCu
Hast.
Titanium
Hast.
Titanium
22
Gland Nut
Lantern Ring
Lantern Ring
Casing Back Cover
22A
Back Cover to Cradle Capscrew s=6‡
≤s=
Ø6‡
6‡
C.I. (1)
316 S/S
Alloy 20
316 S/S
304 S/S
1020 Steel
s=6‡
—
—
—
—
—
—
Thrust Bearing
s=6‡
—
—
—
—
—
—
35/16"
41/4"
21/4"
26
Bearing Housing
=6‡
27
Seal Ring
¨=6‡
28
Bearing End Cover
s=6‡
C.I. (1)
23/4"
27/8"
21/8"
5/8"
3/8"
5
7
2-G-3
37/8"
31/4"
21/4"
3/4"
1/2"
6
7
3-G-3
28A
Bearing End Cover Capscrew
s=6‡
1020 Steel
28B
End Cover Adjusting Screw
s=6‡
1020 Steel
28C
Adjusting Screw Locking Nut
s=6‡
1020 Steel
29
Pump Shaft
s=6‡
Steel (5)
31
Thrust Bearing Lock Nut
¨=6‡
1020 Steel
1020 Steel
515/16"
83/16"
17/8"
21/8"
15/8"
25/8"
11/4"
515/16"
83/16"
17/8"
21/8"
15/8"
25/8"
11/4"
87/16"
103/4"
2"
21/4"
15/8"
23/4"
15/8"
44
27
44
27
78
48
205
205
205
205
220
205
205
205
210
205
200
200
200
205
200
200
200
260
Values of Fn
3500 1750 1150
RPM
RPM RPM
psi
psi
psi
18
18
18
22
18
25.2
25.2
25.2
39.0
25.2
25.2
25.5
25.2
25.2
25.2
4.5
4.5
4.5
5.5
4.5
6.3
6.3
6.3
9.7
9.7
6.3
6.3
6.3
6.3
9.7
6.3
6.3
14.0
14.0
6.3
6.3
6.3
23
2.0
2.0
2.0
3.5
2.0
2.7
2.7
2.7
4.2
4.2
2.7
2.7
2.7
2.7
4.2
2.7
2.7
6.0
6.0
2.7
2.7
2.7
10.0
22.0
15.0
10.0
6.7
25.2
25.2
25.2
275
275
Class 22 Class 50 Class 60 CD4MCu
Radial Bearing
300
300
285
225
225
Titanium
Impeller
25
Without
Balance Holes
3500 1750 1150
RPM RPM RPM
maximum allowable
suction pressure =
maximum allowable
discharge pressure
less developed head
200
180
200
190
200
190
200
210
200
200
185
200
185
200
190
200
210
200
180
180
200
180
195
195
195
260
Hast.
3
25A
MAX. ALLOWABLE PUMP SUCTION PRESSURE (psi)
WITH 2 YR. MIN. THRUST BEARING LIFE
PUMP SIZE
Part Name
275
275
¨
≠
Æ
Ø
∞
±
≤
s
=
6
‡
n
D.I. (13) for pH2110 & pHP2110, C.I. (1) for all others
C.I. (1)
31A
Thrust Bearing Lock Washer
¨=6‡
56
Casing Foot
∞
C.I. (1)
56A
Casing Foot Capscrew
∞=
1020 Steel
56B
Casing Foot Dowel
∞=
1020 Steel
75A
Tapered Retaining Ring
Æs
Steel
75B
Large Retaining Ring
≤s=
Steel
76
Labyrinth Seal – Front
s=6‡
Bronze & Viton n
76A
Labyrinth Seal – Rear
s=6‡
Bronze & Viton n
77
Casing Gasket
6‡
Teflon n
77A
Impeller Gasket
s=6‡
Teflon n
77B
End Cover Gasket
s=6‡
Buna (7)
80
Vent
s=6‡
—
83
Motor Support (C Face)
≤s=
C.I. (1)
95A
Mechanical Seal Stationary
s=6‡
95B
Mechanical Seal Rotary
s=6‡
109
Oil Cooler
s=6‡
S/S Tubing with Steel Fins and Steel Fittings
231
Bearing Lock Ring
Ø6‡
1020 Steel
231A
Bearing Lock Ring Screw
Ø6‡
1020 Steel
231B
Bearing Lock Ring Washer
Ø6‡
1020 Steel
pH2140, pH2170, pH3170, pH2180 and pHP2140 only
pH2110, pH2140, pH2170, pH2180, pHP2110 and pHP2140 only
pH2110, and pHP2110 only
pH2170, pH3170, and pH2180 only
pH2140 and pHP2140 only
pH3170 only
pH2110, pH2140, pHP2110, and pHP2140 only
Denoted parts are interchangeable in all pH2110 and pHP2110 pumps
Denoted parts are interchangeable in all pH2140 and pHP2140 pumps
Denoted parts are interchangeable in all pH2170 and pH3170 pumps
Denoted parts are interchangeable in all pH2180 pumps
Registered Trademark of the E.I. DuPont Company
MATERIAL SPECIFICATIONS (REFER TO NUMBERS IN PARENTHESES)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Cast Iron
Alloy 20 S/S: ASTM #A744, Grade CN-7M
Cast Steel: ASTM #A216, Grade WCB
Steel: ASTM #A194, Grade 2
Alloy Steel: 125,000 TS, 100,000 YP
Steel: ASTM #A193, Grade B7
Buna “N” Rubber
(8)
(9)
(10)
(11)
(12)
(13)
Fibre Sheet — Non-Asbestos Fibre
Manila Paper
Ductile Iron: ASTM A395
Steel: ASTM #A449
316 S/S: ASTM #A744 Grade CF-8M
Ductile Iron: ASTM A536
1
SERIES PH
HORIZONTAL PROCESS PUMPS
WORKING PRESSURE/PUMPING TEMPERATURE
MAXIMUM ALLOWABLE WORKING PRESSURE CURVES
PH2110, PH2140, PH2170, PHP2110, PHP2140
PH3170
PH2180
2
PRODUCT INSPECTION AND TEST
The Products of Dean Pump Division are subject to thorough and rigorous quality control and inspection procedures throughout the
whole of the manufacturing process to assure proper operation in full
conformity with established performance standards. On completion
of inspection, each unit is oiled, sealed against the entrance of dirt,
and tagged with a signed certificate of inspection prior to shipment.
Each pump when shipped is ready to perform the service for which
it was designed with minimum maintenance and expense if properly
installed and operated in accordance with the instructions furnished.
DEAN PRODUCT WARRANTY
We warrant to the purchaser from us of Dean Pump products and
parts of our own manufacture (Dean Products) that the Dean
Products are free under rated use and service from defects in design,
material and workmanship for a period of one (1) year from the
date of installation, but not to exceed eighteen (18) months from the
date of shipment by us. This warranty does not cover (I) any loss or
damage resulting from wear, corrosion, abrasion or deterioration
due to normal use in rated service; (II) replacement of service items
such as shaft packings and mechanical seals; (III) products or parts
manufactured by others but furnished by us which, if defective, shall
be repaired or replaced only to the extent of the original manufacturer’s warranty; (IV) any loss or damage to or defects in any Dean
Products resulting from the misuse or improper storage, installation,
or operation thereof; or (V) any loss or damages to or defects in any
Dean Products resulting from any alteration or modification thereof
not expressly authorized and approved by us in writing. We shall
not be liable, directly or indirectly, under any circumstances for con-
sequential or incidental damages, including, but not limited, to: (I)
any loss of business or profits; and (II) labor, material or other
charges, claims, losses or damages incurred or suffered from, in connection with or in consequence of the working upon, alteration, or
repair of any defective Dean Products by persons or firms other than
us. Our liability for breach of warranty hereunder is limited solely to
the repair in our factory or the replacement F.O.B. our factory, as
the case may be, or any Dean Products which shall have been determined by us, after notice to us and inspection by us within the warranty period, to be so defective when shipped by us.
THIS WARRANTY AND THE LIABILITY SET FORTH HEREIN
ARE EXCLUSIVE AND IN LIEU OF ALL OTHER LIABILITIES AND
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE.
WARNING
HAZARDOUS SITUATIONS MAY OCCUR UNLESS THIS EQUIPMENT IS APPLIED, INSTALLED, OPERATED, AND MAINTAINED BY THOROUGHLY QUALIFIED PERSONNEL IN STRICT ACCORDANCE WITH THE INSTRUCTION MANUAL AND ALL APPLICABLE DRAWINGS
AND CODES.
Read the instruction manual completely before installing, filling, operating, or maintaining this equipment.
on the bill of lading before it is signed. Claims for shipping damage
must be filed against the carrier.
Obtain, read and heed the MSDS (Material Safety Data Sheet) for
the fluids being handled before attempting to fill, operate or maintain this equipment. Obtain instructions from the Safety Engineer
responsible for your facility before performing any work on the
pumping equipment and systems.
Care should be exercised in unloading and handling the pump.
Proper storage while not in use and proper installation and startup
are essential for successful pump operation. Misuse or improper storage, installation or operation of pumps may result in serious loss or
damage. Dean Pump Division is not responsible for any loss or damage resulting from causes beyond its control, and is not liable for
charges for work performed or materials furnished to repair such
loss or damage.
All installation, operation, and maintenance must be done by thoroughly qualified personnel in strict accordance with this manual and
must comply with all local, state and Federal codes. Only Dean
authorized service parts must be used in the repair of these pumps.
STORAGE
Pumps must be properly covered and protected against moisture,
dirt, and physical damage during storage prior to installation. If prolonged storage is anticipated, a heavy protective coating should be
applied to bearings and all exposed machined surfaces. A rust preventative must be used to protect all steel or cast iron parts.
Compression packing or mechanical seals should be removed and
stored as well as protected separately.
Pumps must also be protected from moisture, dirt, and physical damage during and after installation while the system is being completed. Pumps “stored” on their foundations must be completely checked
for proper installation prior to start-up.
Care in storage and installation will preserve the built in quality of
each Dean Product.
RECEIVING PUMP
When the pump is received from the transportation company it
should be promptly inspected for damage and such damage noted
3
INSTALLATION
Always wear the appropriate protective apparel when working on
or around the pumping equipment. Safety glasses with side shields,
heavy work gloves (use insulated work gloves when handling hot
items), steel-toed shoes, hard hat, and any other protective gear as
needed for protection. One example of other gear would be breathing apparatus when working near toxic materials. Use lifting
devices, manufactured expressly for the purpose of lifting, to move
the pumping machinery. Do not attempt to lift the assembly or its
components manually. Use only devices with lifting capabilities in
excess of the weight of the unit being lifted. Inspect straps, chains,
hooks, etc. for damage and lifting capability before use. Lift only at
the center of gravity.
BASEPLATE MOUNTING AND ALIGNMENT
The sequence of mounting which must be observed for proper baseplate and pump mounting is:
Personal injury, death, and/or equipment damage could occur if
good lifting practices are not used.
4) Grout the baseplate. Do not grout the baseplate to the foundation until the pump and driver are correctly aligned. Channel
type baseplates are made with open ends to allow easy grouting and do not require grouting holes in the baseplate.
Fabricated structural steel baseplates are provided with grouting holes. Fill the entire void under the baseplate with grout and
firmly embed the baseplate edges.
APPLICATION AND REAPPLICATION
At the time of installation, the equipment received should have
already been selected for the service required. You must read the
paperwork for the installation and check the serial number of the
pump to assure that you are installing the correct pump into the service for which it was selected.
Many pumps look identical from the outside but can be made of different materials and/or be constructed differently inside. Personal
injury, death, equipment damage, product (pumpage) damage,
and/or product loss could occur if the incorrect pump is installed.
Do not transfer an existing pump to any other service conditions until
you have thoroughly reviewed the pump construction, materials,
sizing, sealing, pressure containing capability, head/capacity capability, and temperature capability with respect to the required
service. Consult your Dean Pump sales engineer with all the service
requirements and a full description of the existing pump (including
the serial number), seal, and sub-systems so that we can assist you in
a successful reapplication.
PUMP FOUNDATION
The pump foundation provides rigid support to the baseplate and
maintains the exact alignment of the pumping unit. Baseplates are
designed to rigidly support the pump and driver without vibration or
distortion only when they are properly set, leveled, and secured to
the foundation.
The purchaser may elect to mount the pump without grouting the
baseplate. In any case the baseplate must be fully supported by the
customer’s mounting means to prevent vibration and distortion.
NOTE: Refer to MC 1.2.34 FBP when Dean FRP baseplates are used.
TYPICAL FOUNDATION LAYOUT
1) Place baseplate, with pump and driver mounted thereon, on the
pump foundation.
2) Use wedges under the baseplate edges, at each foundation
bolt, to properly support and level the unit. Check this with a
spirit level. Pull down the baseplate mounting bolt nuts tightly
and recheck for level. Correct if necessary.
3) Align the driver to the pump. See “Pump and Driver
Alignment’’ on page 5.
5) Connect the suction and discharge piping without forcing the
piping into position. See “Suction and Discharge Piping’’ on
page 5. The pipe flanges must line up with the pump flanges
“ freely”.
Install a “new” bolt, of the correct size per ASME/ANSI
B16.5 and the correct material per ASME/ANSI B16.5, in
every bolt hole. Tighten all bolts evenly. Use only new
uncorroded fasteners.
WARNING:
Strain caused by “forcing”, improper flange bolting, and/or
misalignment may cause failure of the pumping unit, flanges, piping
and/or fluid (pumpage) release which could cause personal injury,
death, and/or damage to this and/or other equipment.
6) Recheck pump and driver alignment to ensure that no distortion
of the pump unit has been caused by piping strain. Correct
piping if misalignment has occurred and again align pump and
driver.
7) Connect all other (auxiliary) piping necessary for safe and
successful operation of the equipment in the specific service
conditions of the application. See “Pump Cooling
Requirements” on page 10.
WARNING:
Make sure that all piping is installed into its correct connection.
Installation of a pipe into an incorrect location could result in an
explosion and personal injury or death as well as damage to this
and/or other equipment.
Install pressure relief valves in any cavities that could be subjected to
pressures in excess of the allowable working pressure. Explosion,
personal injury, death, and/or damage to this and/or other equipment may occur if pressure exceeds allowable.
One example of the above would be the cooling jacket around the
seal chamber. If this chamber were full of water and someone
would close both the inlet and outlet valves and then operate the
pump at 500 degrees fahrenheit, the vapor pressure of the water,
665 PSIG, would far exceed the capacity of the jacket and possibly
other parts. In this example, a relief valve must be installed between
the pump and the outlet valve.
8) Recheck the alignment between the driver (motor,
turbine, or engine) and pump shafts. Installation of piping
may have forced the pump out of alignment. If so, correct the
4
piping to remove the distorting load, and realign the pump
and driver.
9) The pump and driver alignment must again be checked at the
operating temperature and alignment corrected under the hot
condition.
10) After about two weeks of normal pump operation the pump
and driver alignment should again be checked under the hot
condition. If alignment is still correct, the driver feet may be
doweled to the baseplate. If the alignment has changed,
realign the unit and recheck after two weeks. NOTE: Refer to
MC 1.2.34 FBP when Dean FRP baseplates are used.
SUCTION AND DISCHARGE PIPING
Suction and discharge nozzle sizes of Dean pumps are selected
for proper performance of the pumping unit and are not intended
to determine the suction and discharge pipe sizes. Pipe sizes must
be determined by the user based on the system requirements.
Suction piping should have a minimum friction loss and thus
should be as short and straight as possible with a pipe diameter
as large as economically feasible for the flow rate handled.
Suction piping should never be smaller in diameter than the suction nozzle size. When the suction piping is larger than the suction
nozzle size an eccentric reducer is required at the suction flange
and must be installed with the taper located on the underside to
eliminate air or vapor pockets. The section of piping attached to
the suction flange of the pump should be straight for a length of
eight pipe diameters or more.
Discharge piping may be the same size as, larger, or smaller than
the discharge nozzle as the system flow may demand.
In new installations or rebuilt systems, dirt, pipe scale, welding
slag, and general construction debris may get into the piping. It is
important to prevent this material from entering the pump and
damaging pump parts, mechanical seal faces, or seal chamber
packing. Mechanical seal parts are especially subject to damage
even by very small particles. To prevent damage, a strainer or filter installed in the suction line is recommended. Commercially
TYPICAL PUMP PIPING
able to the pump and should be considered at the time the system
is designed.
NOTE: See page 26 for Installation of pHP self-priming pumps.
PUMP AND DRIVER ALIGNMENT
Proper running life of a pump and driver unit depends on the accuracy with which the axis of the driver shaft coincides with the axis
of the pump shaft when the unit is running. Although pumps and
drivers are check aligned at the factory, this is only to confirm that
the unit can be aligned in the field and handling during shipment
and installation will cause the alignment to change.The pump and
driver alignment must always be checked and corrected before the
baseplate is grouted to the foundation and again before the pump
is first started. If the baseplate mounting instructions have been
carefully followed, no difficulties in making the alignment should
be experienced. Failure to properly align the unit will result in
vibration, short bearing life, and reduced mechanical seal or shaft
packing life.
Pumps are not constructed to be used as pipe anchors. Both suction and discharge piping must be supported independently of the
pumping unit and thermal expansion joints provided to guard
against expansion loads on the pump. Pipes should be anchored
between the expansion joint and the pump and as closely to the
pump as possible. Failure to provide proper piping support and
expansion joints may impose strains on the pumping unit which
will result in serious misalignment. Any and all loads upon the
pump must be with-in the maximum allowable values given in the
section titled “Allowable Nozzle Loads” on page 6.
No allowance for thermal expansion is made for motor driven
units in mounting the driver. Allowance for turbine mounting
should be in accordance with the turbine manufacturer’s recommendations. Final alignment must always be checked and corrected at the operating temperatures of the pump and driver.
Misalignment of the two shafts is of two kinds. The first of these is
angular misalignment where the axis of one shaft is at an angle
from the other. The other is offset alignment where the center of
one shaft is offset from the center of the other shaft. These effects
usually occur together so that both angular and offset misalignment
are present.
Coincident alignment of the driver and pump shaft is measured at
the faces of the coupling hubs. Because of the variety of coupling
types furnished at customer’s request, the procedure here given is
general in nature but may be applied by simple adaption to most
coupling types.
available strainers or filters as recommended by their manufacturers can do an excellent job. In addition, special filtering and
mechanical seal flushing may be required. Consult your Dean representative. Suction line screens or strainers may usually be
removed when, after several days of use, no dirt has been collected and the system is clean.
The first step is to remove the spacer from the coupling. To one of
the remaining coupling hubs, firmly seated on the shaft, attach a
dial indicator. Let the indicator button ride on the face of the other
coupling hub and near the outside diameter. Rotate the shaft on
which the dial indicator is mounted, allowing the indicator button
to move on the stationary coupling hub. The indicator dial movement will show the difference in distance between the two hubs.
This indicates the amount of angular misalignment between the
hubs and therefore the shaft axes. Good practice suggests alignment to within 0.002" T.l.R.
Remember that screens and filters in the suction line are restrictive
devices which reduce the net positive suction head (NPSH) avail-
5
To check the offset alignment, mount the dial indicator as above
except with the indicator button on an outside diameter of the stationary coupling hub. Rotate the shaft on which the dial indicator
is mounted, allowing the indicator button to ride on the outside
diameter of the stationary hub. The indicator dial movement will
show the difference in the center locations of the two shafts. Good
practice suggests alignment to within 0.002" T.I.R.
After each change, it is necessary to recheck both angular and
offset alignment of the coupling. After driver is aligned to the
pump, tighten all hold-down bolts and then recheck alignment.
Allowable error of shaft alignment is somewhat dependent on
the coupling type. However, the closer the running alignment,
the better the running life will be.
Angular and offset alignment is adjusted by placing thin metal
shims under the driver mounting feet to bring the drive into
exact alignment with the bolted down pump. If misalignment is
of major proportions, the baseplate has been improperly installed
on the foundation and must be releveled before proceeding with
alignment.
INDICATOR SETUP TO READ ANGULAR MISALIGNMENT
INDICATOR SETUP TO READ OFFSET MISALIGNMENT
ALLOWABLE NOZZLE LOADS
The allowable loads given below and the procedure for application are as specified by the “American National Standard for Centrifugal
and Vertical Pumps for Allowable Nozzle Loads”, ANSI/HI 9.6.2-2001. For additional information and application, including examples,
refer to this standard.
SYMBOLS
Fxs = applied force on x-axis on suction nozzle
Fys = applied force on y-axis on suction nozzle
Fzs = applied force on z-axis on suction nozzle
Mxs = applied moment about x-axis on suction nozzle
Mys = applied moment about y-axis on suction nozzle
Mzs = applied moment about z-axis on suction nozzle
Fxd = applied force on x-axis on discharge nozzle
Fyd = applied force on y-axis on discharge nozzle
Fzd = applied force on z-axis on discharge nozzle
Mxd = applied moment about x-axis on discharge nozzle
Myd = applied moment about y-axis on discharge nozzle
Mzd = applied moment about z-axis on discharge nozzle
Fxs max = allowable force on x-axis on suction nozzle
Fys max = allowable force on y-axis on suction nozzle
Fzs max = allowable force on z-axis on suction nozzle
Mxs max = allowable moment about x-axis on suction nozzle
Mys max = allowable moment about y-axis on suction nozzle
Mzs max = allowable moment about z-axis on suction nozzle
Fxd max = allowable force on x-axis on discharge nozzle
Fyd max = allowable force on y-axis on discharge nozzle
Fzd max = allowable force on z-axis on discharge nozzle
6
Mxd max = allowable moment about x-axis on discharge nozzle
Myd max = allowable moment about y-axis on discharge nozzle
Mzd max = allowable moment about z-axis on discharge nozzle
INSTRUCTIONS FOR USE OF ALLOWABLE LOADS
1) Determine the applied nozzle loads from the suction and discharge piping systems.
2) Use the correction factor from Table 5 for the pump material
and operating temperature. For intermediate temperatures not
shown in Table 5 linear interpolation is permitted. Multiply the
values in Table 2 (For the applicable pump size) by the correction factor to obtain the allowable values.
3) If the base plate is metal, fully grouted, and anchored, evaluate
the values of the de-rated Table 2 to see if any value is lower
than the corresponding value in Table 1. If so, substitute the
lower of the values into Table 1. No corrections are needed to
Tables 3 and 4. Go to step 7.
4) If the base plate is un-grouted metal that is anchored down, use
the corrected values of Table 2 from Step 2 above and 80% of
the values in Tables 3 and 4. After adjusting the values in
Tables 3 and 4, if the absolute values of any of them or the
adjusted values of Table 2 (from Step 2 above) are lower than
the corresponding values in Table 1, substitute the lower of the
values into Table 1. Go to step 7.
5) If the base plate is grouted, anchored, and non-metallic, multiply the original values of Table 2 by 80%. Compare these corrected values with the Table 2 corrected values of Step 2
above. Use the lesser of the two corrected values as the Table 2
corrected values. Multiply the values of Tables 1, 3, and 4 by
80%. If any of the values of the de-rated table 2 are lower than
the corresponding values in the de-rated Table 1, substitute the
lower of the values into Table 1. Go to step 7.
6) If the base plate is un-grouted, nonmetallic, and is anchored
down, multiply the original values of Table 2 by 70%.
Compare these values with the Table 2 corrected values of
Step 2 above. Use the lesser of the two corrected values as the
Table 2 corrected values. Multiply the values of Tables 1, 3,
and 4 by 70%. If any of the values of the de-rated Table 2 are
lower than the corresponding values in the de-rated Table 1,
substitute the lower of the values into Table 1.
7) Solve the equation of Equation Set #1 using the corrected
allowable values of Table 1. The result for each of the twelve
equations must be less than 1.00 for an acceptable application.
8) Solve the equation of Equation Set #2 using the corrected
allowable values of Table 2. The result must be less than 1.0 to
be acceptable.
9) Solve the equation of Equation Set #3 using the allowable (or
corrected values if the base plate is either non-metal or ungrouted) values from Table 3. The result must be between –1.0
and +1.0 to be acceptable.
10) Solve the equation of Equation Set #4 using the allowable (or
corrected values if the base plate is either non-metal or ungrouted) values from Table 4. The result must be between –1.0
and +1.0 to be acceptable.
11) Use the solution of equation 3(a) and the solution of equation
4(b) to solve equation #5. The result must be less than 1.0.
12) If all the solutions of all the equation sets result in acceptable
values, the loads are within acceptable limits.
EQUATION SETS
SET
EQUATIONS
REFERENCE
Fxs
Fys
Fzs
Mxs
Mys
Mzs
Fxs max ≤ 1.0, Fys max ≤ 1.0, Fzs max ≤ 1.0, Mxs max ≤ 1.0, Mys max ≤ 1.0, Mzs max ≤ 1.0,
1
REMARKS
Table 1
Individual Loading
Table 2
Nozzle Stress,
Hold-Down Bolt
Stress, Pump Slippage
Table 3
y-Axis Movement
Table 4
z-Axis Movement
Fxd
Fzd
Mxd ≤ 1.0,
Myd ≤ 1.0,
Mzd ≤ 1.0
≤ 1.0, Fyd
≤ 1.0,
≤ 1.0,
Fxd max
Fyd max
Fzd max
Mxd max
Myd max
Mzd max
2
3
4
1/ x
2
Fxs
Fxs max
+
Fys
Fys max
+
Fzs
Fzs max
+
Mxs
Mxs max
+
Mys
Mys max
+
Mzs
Mzs max +
Fxd
Fxd max
+
Fyd
Fyd max
+
Fzd
Fzd max
+
Mxd
Mxd max
+
Myd
Myd max
+
Mzd
Mzd max
Fys
Fys max
+
Mxs
Mxs max
+
Mys
Mys max
+
Mzs
Mzs max
+
Fyd
Fyd max
+
Mxd
Mxd max
+
Myd
Myd max
+
-1.0 ≤ a =
-1.0 ≤ b =
≤ 1.0
≤ 1.0
Mzd
Mzd max
Fxs
Fzs
Mxs
Mys
Mzs
Fxs max + Fzs max + Mxs max + Mys max + Mzs max +
≤ 1.0
Fxd
Fyd
Fzd
Mxd + Myd
+
+
+
+ Mzd
Fxd max
Fyd max
Fzd max
Mxd max
Myd max
Mzd max
5
√ a2 + b2 ≤ 1.0
Combined Axis Movement
Notes:
1) The loads shown in Tables 1 through 4 are for a pump
mounted upon a fully grouted metal base plate with anchor
bolts.
2) The loads given in Tables 1 through 4 are for pumps constructed of 316 Stainless Steel when operated between
–20°F. and 100°F.
3) The temperature for a corresponding allowable nozzle load
is the temperature of the pumped liquid.
4) For an individual(single) load, the value of the applied load
must not exceed the maximum allowable value, for that
location, given in Table 1. i.e. The applied load divided by
the allowable load must be less than or equal to 1.0.
5) For a combination of more than one force and/or moment,
the applied loads must not exceed any limit of any Equation
(Sets 2 through 5) or any table (2 through 4).
6) When combining loads, the absolute value of any individual
load must not exceed the value given in Table 1.
7) The loads in the tables must be multiplied by adjustment
factors when applicable. The lowest correction factor must
be applied when more than one adjustment factor is
involved. There are cases where one adjustment factor is
applied in Table 2 and another adjustment factor is applied
to Tables 3 and 4.
Adjustment of allowable loads is required for:
Pump constructed of a material other than 316 S/S.
Pumping Liquid at temperatures above 100°F.
The base plate is not grouted.
The base plate is nonmetallic.
7
TABLE 1 – ALLOWABLE INDIVIDUAL NOZZLE LOADS
ANSI
Size
PH2110
AA
AB
AC
AA
AB
PH2140
A05
A50
A60
A70
A05
A50
A60
A70
A20
A30
A40
A80
A20
A30
A40
PH2170
A80
PH3170
A20
A30
A40
PH2180
Suction
Forces (lb)
Moments (ft-lb)
Fxs
Fys
Fzs
Mxs
Mys
Mzs
max
max
max
max
max
max
Discharge
Forces (lb)
Moments (ft-lb)
Fxd
Fyd
Fzd
Mxd
Myd
Mzd
max
max
max
max max
max
1x11/2x6
11/2x3x6
2x3x6
1x11/2x8
11/2x3x8
1050
1050
1050
1050
1050
750
1240
1240
1210
1240
750
1250
1250
1210
1250
720
900
900
720
900
170
490
490
190
490
170
490
490
190
490
800
800
800
800
800
1350
1350
1350
1350
1350
3000
3000
3000
3000
3000
410
500
500
360
440
410
550
550
360
440
410
510
510
360
440
1x2x81/2
11/2x3x81/2
2x3x81/2
3x4x81/2 #1
3x4x81/2 #2
1x2x10
11/2x3x10
2x3x10
3x4x10 #1
3x4x10 #2
11/2x3x111/2
2x3x111/2
3x4x111/2
4x6x111/2
11/2x3x131/2
2x3x131/2
3x4x131/2
2340
2700
2700
2700
2700
2340
2700
2700
2300
2300
2700
1920
2700
2700
2700
1920
2700
960
1350
1350
1350
1350
960
1350
1350
1350
1350
1350
1230
1350
1350
1350
1230
1350
960
1500
1500
1500
1500
960
1500
1480
1500
1500
1500
1230
1500
1500
1500
1230
1500
1270
1300
1300
1300
1300
1270
1300
1300
1300
1300
1300
1300
1300
1300
1300
1300
1300
200
370
600
350
350
220
420
310
310
310
670
350
400
1100
670
350
400
200
370
600
350
350
220
420
310
310
310
670
350
400
1100
670
350
400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
3250
3250
3250
3250
3250
3250
3250
3250
3250
3250
3250
3250
3250
3250
3250
3250
3250
660
460
660
1200
1200
660
370
560
1200
1200
530
1200
1200
1200
530
1200
1200
660
460
660
1460
1460
660
370
560
1460
1460
530
1270
1500
1500
530
1270
1500
660
460
660
690
690
660
370
560
690
690
530
690
690
690
530
690
690
4x6x131/2
2700
1350
1500
1300
1300
1100
1400
1350
3250
1200
1500
690
11/2x3x131/2
2x3x131/2
3x4x131/2
2700
1920
2700
1350
1230
1350
1500
1230
1500
1300
1300
1300
670
350
400
670
350
400
1400
1400
1400
1350
1350
1350
3250
3250
3250
530
1200
1200
530
1270
1500
530
690
690
Pump Size
4x6x131/2
2700 1350 1500 1300 1170 1100 1400 1350 3250 1200 1500
6x8x131/2
3500 3180 2000 1500 1170 1170 1500 3000 3500 1250 2840
TABLE 2 – ALLOWABLE COMBINATION NOZZLE LOADS FOR NOZZLE STRESS, HOLD-DOWN BOLT STRESS, AND PUMP SLIPPAGE ON BASEPLATE
PH2110
AA
AB
AC
AA
AB
PH2140
A05
A50
A60
A70
A05
A50
A60
A70
A20
A30
A40
A80
8
690
2840
1x11/2x6
11/2x3x6
2x3x6
1x11/2x8
11/2x3x8
2020
2020
2020
2020
2020
750
1240
1240
1210
1240
750
2110
2110
1210
1640
1830
2290
2290
1830
2290
170
490
490
190
490
170
490
490
190
490
2020
2020
2020
2020
2020
1350
1350
1350
1350
1350
6240
6240
6240
6240
6240
410
550
550
360
440
410
550
550
360
440
410
510
510
360
440
1x2x81/2
11/2x3x81/2
2x3x81/2
3x4x81/2 #1
3x4x81/2 #2
1x2x10
11/2x3x10
2x3x10
3x4x10 #1
3x4x10 #2
11/2x3x111/2
2x3x111/2
3x4x111/2
4x6x111/2
2340
2700
2700
2700
2700
2340
2700
2700
2300
2300
2700
1920
2700
2700
960
1350
1350
1350
1350
960
1350
1350
1350
1350
1350
1230
1350
1350
910
1820
2490
1840
1840
960
1910
1480
1640
1640
3060
1230
2390
6240
3640
3730
3730
3730
3730
3640
3730
3730
3730
3730
3730
3730
3730
3730
200
370
600
350
350
220
420
310
310
310
670
350
400
1100
200
370
600
350
350
220
420
310
310
310
670
350
400
1100
2020
2020
1970
2020
2020
2020
1940
2020
2020
2020
2020
2020
2020
2020
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
1350
6240
6240
6240
6240
6240
6240
6240
6240
6240
6240
6240
6240
6240
6240
660
460
660
1460
1460
660
370
560
1460
1460
530
1460
1730
2150
660
460
660
1460
1460
660
370
560
1460
1460
530
1460
1730
2150
660
460
660
690
690
660
370
560
690
690
530
690
690
690
TABLE 2 – ALLOWABLE COMBINATION NOZZLE LOADS FOR NOZZLE STRESS, HOLD-DOWN BOLT STRESS, AND PUMP SLIPPAGE ON BASEPLATE (CON’T)
ANSI
Size
Pump Size
PH2140 (con’t)
A20
11/2x3x131/2
A30
2x3x131/2
A40
3x4x131/2
PH2170
A80
4x6x131/2
PH3170
A20
11/2x3x131/2
A30
2x3x131/2
A40
3x4x131/2
PH2180
4x6x131/2
6x8x131/2
Suction
Forces (lb)
Moments (ft-lb)
Fxs
Fys
Fzs
Mxs
Mys
Mzs
max
max
max
max
max
max
Discharge
Forces (lb)
Moments (ft-lb)
Fxd
Fyd
Fzd
Mxd
Myd
Mzd
max
max
max
max max
max
2700
1920
2700
1350
1230
1350
3060
1230
2390
3730
3730
3730
670
350
400
670
350
400
2020
2020
2020
1350
1350
1350
6240
6240
6240
530
1460
1730
530
1460
1730
530
690
690
2700
1350
6240
3730
4980
1100
2020
1350
6240
2150
2150
690
2700
1920
2700
1350
1230
1350
3060
1230
2390
3730
3730
3730
670
350
400
670
350
400
2020
2020
2020
1350
1350
1350
6240
6240
6240
530
1460
1730
530
1460
1730
530
690
690
2700
6360
1350
3180
5080
5080
3730
8970
1170
1170
1100
1170
2020
6360
1350 6240 2150 2150
3180 13460 6780 3850
690
3840
TABLE 3 – ALLOWABLE COMBINATION NOZZLE LOADS FOR Y-AXIS MOVEMENT
Pump Size
Suction
Forces (lb)
Fys
max
-2000
-3500
-5000
PH2110
PH2140/2170/3170
PH2180
Moments (ft-lb)
Mxs
Mys
Mzs
max
max
max
900 1200 1250
1300 1300 3000
1500 2000 4000
Forces (lb)
Fyd
max
1500
2500
3000
Discharge
Moments (ft-lb)
Mxd
Myd
Mzd
max max
max
-500 1500 1250
-1200 1500 3000
-1250 5000 4000
TABLE 4 – ALLOWABLE COMBINATION NOZZLE LOADS FOR Z-AXIS MOVEMENT
Pump Size
PH2110
PH2140/2170/3170
PH2180
Fxs
max
1050
3500
3500
Forces (lb)
Suction
Fzs
max
-1250
-1500
-2000
Moments (ft-lb)
Mxs
Mys
Mzs
max
max
max
1500 1200 -2500
1500 1300 -3500
1500 4100 -4000
Discharge
Forces (lb)
Moments (ft-lb)
Fxd
Fyd
Fzd
Mxd
Myd
Mzd
max
max
max
max max
max
800 2000 -3000 -1500 1000 -2500
1400 2500 -3250 -1500 2150 -3500
1500 4000 -3500 -1500 5000 -4000
TABLE 5 – PUMP TEMPERATURE AND MATERIAL ADJUSTMENT VALUES TO BE USED ON TABLE 2 VALUES
Material
Ductile Iron (Class 22)
ASTM-A395
Type 316 S/S (Class 50)
ASTM-A744 Grade CF-8M
Type Alloy 20 S/S (Class 60)
ASTM-A744 Grade CN-7M
Type CD4MCu S/S
ASTM-A351 Grade CD4MCu
Hastelloy – C
ASTM-A494 Grade CW-12MW
Temperature - °F
300
350
-20 to 100
150
200
250
400
450
500
0.89
0.86
0.83
0.80
0.78
0.75
0.73
0.71
0.69
1.00
0.93
0.86
0.82
0.78
0.75
0.72
0.69
0.67
0.83
0.80
0.77
0.75
0.73
0.70
0.67
0.66
0.65
1.00
1.00
1.00
1.00
1.00
0.99
0.98
0.95
0.92
1.00
1.00
1.00
1.00
1.00
0.99
0.98
0.95
0.92
9
PUMP COOLING REQUIREMENTS
Pumps are furnished with optional seal chamber jacket, jacketed
casing, jacketed mechanical seal gland, and bearing housing cooling coil according to the pump service.
SEAL CHAMBER COOLING
Cooling is recommended under these conditions:
1) With a mechanical seal when the pumping temperature is
above 350°F. Individual plant specifications may require cooling above 250°F. Specific applications or liquids may require
cooling at lower temperatures.
2) With a mechanical seal when pumping liquids of 0.75 specific
gravity, or less, when the pumping temperature permits further
cooling.
MECHANICAL SEAL GLAND COOLING
Mechanical seal gland cooling is generally applied under the same
conditions as those for seal chamber cooling. For pumping temperatures only slightly above those requiring seal chamber cooling,
gland cooling may not be required on a specific application.
BEARING HOUSING COOLING
Cooling of the bearing housing is applied to cool the lubricating oil
and bearings. At pumping temperatures below 500°F. Such cooling
is rarely necessary. Excessive cooling of the bearing housing may
lead to early bearing failure from moisture condensation contamination of the oil.
3) With packing at temperatures above 250°F.
JACKETED SEAL CHAMBER CONNECTIONS
PH 2110 SERIES PUMPS
PH
JACKETED SEAL CHAMBER CONNECTIONS
2140/2170/3170 & 2180 SERIES PUMPS
WARNING: SEE
IMPORTANT
WARNING BELOW.
Cooling Outlet,
Heating Inlet
WARNING: SEE
IMPORTANT
WARNING BELOW.
Discharge Flange
3/8” NPT
Seal Connection
1/2” NPT
Cooling Inlet,
Heating Outlet
Cooling Inlet,
Heating Outlet
1/2” NPT
Cooling Outlet,
Heating Intlet
Seal Connection
180° Apart
IMPORTANT WARNING
INSTALLATION OF COOLING AND/OR SEAL CONNECTION PIPING TO THE PROPER CONNECTIONS IN MANDATORY. PUMP JACKET COOLING WATER INSTALLED TO THE SEAL CONNECTIONS WILL RESULT IN INJECTION OF WATER INTO THE PUMPAGE WHICH MAY CAUSE SERIOUS CONTAMINATION OF THE PRODUCT AND HEAVY CORROSION. DEPENDING ON TEMPERATURE, IT MAY ALSO CAUSE A VIOLENT
STEAM EXPLOSION IN THE PUMP OR ASSOCIATED PIPING OR EQUIPMENT WITH EXTREME HAZARD TO PERSONNEL.
COOLING WATER PIPING
The cooling water piping depends on what cooling coil or jackets
are furnished and used. Jackets to be piped in series are Seal
Chamber Cooling, and Bearing Housing Cooling Coil, with the
cooling water to flow in that sequence. Not all of these jackets will
necessarily be used. All other jackets or cooling coil should be piped
in parallel with separate flow to each. The customer must provide
piping and a shut-off valve on each cooling inlet. The customer must
also provide the outlet piping from each jacket or cooling coil, fitted
with a pressure relief valve set at a maximum of 150 psig. and then
a flow control valve.
The relief valve is installed between the jacket and the flow control
valve to relieve any dangerous pressure that could develop in the
jacket. Pipe each outlet from the flow control valve to an open sight
drain or through a suitable flow indicating device into the plant cooling water return system.
10
In no case should the outlet be piped into the municipal water
system.
Cooling jacket piping should be run to provide inlet water at the lowest jacket connection and outlet from the highest connection.
COOLING WATER FLOW RATES
Seal chamber jacket cooling water flow rates are related to pumping
temperature. A rate of 2 to 5 GPM is advisable, the higher rate at a
pumping temperature of 500°F.
Mechanical seal gland cooling flow should be adjusted to about 1/2
GPM.
Bearing housing cooling coil water flow rate should be adjusted to
1/2 GPM. This will maintain the bearing housing temperature in the
120°F to 200°F range. The pump may be operated without bearing
housing cooling if experience in the particular installation shows that
bearing housing temperatures do not rise above 200°F.
PUMP HEATING REQUIREMENTS
The optional seal chamber, mechanical seal gland, and pump
casing jackets may be used to provide pump heating. The jackets are good for pressure to 125 psig and may be used with
steam or heat transfer liquids. Series or parallel piping of the
seal chamber and pump casing jackets may be used. The
mechanical seal gland jacket piping should be run independently so as not to be a flow restriction.
When steam is used as the heating medium, inlet piping should be
run to the highest jacket connection and outlet should be from the
lowest connection to allow condensate to drain.
The casing and backhead may be lagged to minimize heat loss.
Remember that seal chamber temperatures above 350°F may
cause early failure of mechanical seal parts.
PUMP LUBRICATION
Lubrication of the ball type bearings in Dean pumps is by oil
contained in the sump of the bearing housing (26). The oil must
be a good grade of rust and oxidation inhibited, non-foaming,
industrial oil with a viscosity of approximately 500 SSU at
100°F. This will be an ISO 100 oil.
Failure to level the pump assembly when the entire unit is
installed may adversely affect the oil level and reduce bearing
life. Proper care should be taken to avoid this condition.
The pump is fitted with a “Bull’s Eye” type oil level indicator, and fill
openings on both sides of the bearing housing. If it would be easier
to see, the “Bull’s Eye” can be removed and repositioned on the
opposite side of the bearing housing. Fill the sump through one of
the NPT fill openings on the side of the bearing housing until the oil
level reaches the center of the “Bull’s Eye” level indicator. The oil
must be maintained at this level during operation.
If the optional automatic oiler was supplied, it was packed separately for pump shipment to avoid damage. Install the oiler into the
1” NPT tapped hole on either side of the bearing housing. Screw
the oiler reservoir from the top of the “Bull‘s Eye” housing, invert it,
fill it with oil, and reinstall it into the housing.
The oil should be drained and replaced at regular intervals, the
intervals depending on the atmospheric conditions (dust, soot, corrosive vapors, humidity, temperature variations, etc.) prevailing at
the pump installation site. The bearing housing should be flushed
with a good solvent before the oil is replaced.
Pumps are shipped from the factory without oil in the bearing housing.
STARTING THE PUMP
It is important that a pump should never be subjected to thermal or
pressure shock. The liquid should therefore be allowed to flow into
the casing slowly. A centrifugal pump should never be started until
all the parts are up to the temperature of the liquid to be pumped.
If the pump is equipped with cooling water piping this should be
turned on before filling the pump.
FILLING
WARNING:
Before filling the pump with liquid, check to see that all possible leak
locations are sealed. See that the point where the pump shaft enters
the pressure containing cavity is sealed. Normally this sealing is
accomplished with shaft packing or a mechanical face seal. See that
all of the connections into the pressure containing cavity are sealed
or connected to a related piping system that also has all possible
leak paths sealed. Do not plug unused jacket cavities, as this could
develop dangerous pressure build-up. Use a wrench on all bolted
joints to apply torque to assure that all gaskets are sealed in a tight
joint. Check to see that all threaded pipe connections are also tight
enough to seal the Liquid pressure that will be applied when the system is started.
When the source of liquid supplied to the pump is below atmospheric pressure or located below the pump, the pump must be primed
prior to start up. The priming may be accomplished in any of several
ways, three of which are listed.
1) An exhauster may be connected to the discharge piping
between the pump and the discharge shut-off valve. With the
discharge shut-off valve closed and the suction valve open, the
air can be exhausted from the pump and piping.
2) With a foot valve installed in the suction piping, the pump may
be filled with liquid introduced somewhere above the pump in
the discharge line. The seal chamber should be vented to allow
complete filling. A foot valve may create extensive losses and
should be taken into consideration in calculating the available
NPSH.
3) A vacuum pump (preferably a wet vacuum pump) may be used
for evacuating air from the pump and piping. The vacuum pump
should be connected as is the exhauster covered in No. 1.
When the source of liquid supplied to the pump is above atmospheric pressure or above the pump centerline, the pump may be filled by
venting through a bleed off line to atmosphere or back to the pump
suction source.
It is most important to check the direction of rotation of the pump
before allowing the pump to come up to speed. To check rotation
direction, push the starting button and instantly push the stop button.
This will allow the motor to turn over a few revolutions and the direction of rotation to be observed. If the pump is fitted with the optional
“C” face motor support (83), the shaft coupling will be installed,
causing the pump shaft to rotate with the motor shaft. Be careful that
you push the start and stop buttons essentially at the same time so
that the unit does not come up to speed. The impeller is threaded on
to the pump shaft, and will unscrew causing damage if operated in
reverse direction. A direction of rotation arrow is shown on the front
of the pump casing. If rotation is incorrect, change the wiring connections and recheck rotation. Operating the pump in reverse rotation may cause extensive damage.
WARNING:
Lock-out the power to the driver (motor, turbine, engine, etc.)
Install the shaft coupling spacer. Be sure that you install all the
retaining devices and bolts and that they are tight. Read and comply
with the coupling manufacturers instructions. Personal injury, death,
and/or equipment damage could occur if the coupling spacer is not
properly installed. Remove all debris and tools from the area near
the shafts and the shaft coupling. Do this to assure that nothing is
11
caught and thrown by the rotating parts when the pump is started.
Bolt the coupling guard securely into place, checking to assure that it
is not contacting any parts that will rotate when the pump is started.
OPERATING
WARNING:
Before starting the unit, see that all personnel are a safe distance
away from all possible hazards, that all sub-systems are connected
and operating, that all debris has been removed, that the shaft coupling guard is securely in place, and that the pump is full of liquid.
Do not operate this pump at shut-off (no flow) as an explosion may
result. This can occur with any liquid, even “cold water”. Personal
injury, death, equipment damage, and/or loss of product
(pumpage) is likely to occur. If your system is operated where it is
possible for all outlets of the discharge from the pump to be closed
while the pump is still operating, a modification of the system needs
to be made to assure a continual flow of pumpage through the
pump. NOTE: Some people have a belief that a bypass line from the
discharge side of the pump to the suction side of the pump will
relieve this problem, this is “NOT TRUE”; DO NOT ATTEMPT THIS.
WARNING:
Do not operate a pump at a low flow condition, unless provision has
been made to prevent dangerous heat build up within the pump
casing. The liquid in the pump will heat up and this may result in
high pressure in the pump in a short time. Such pressure may result
in a rupture of the pressure-containing parts and cause severe hazard to personnel and/or damage to the system.
A centrifugal pump should never be run without liquid In the casing.
Extensive damage may result, particularly to the mechanical seal or
compression packing. When the pump is equipped with a mechanical seal, vent the pump seal chamber through the seal connection to
provide lubrication to the mechanical seal faces.
A centrifugal pump should be started with the suction valve open
and the discharge valve opened a slight amount.
As soon as the pump is up to speed, the discharge valve must be
opened slowly. A centrifugal pump cannot be operated with discharge valve closed without heating up dangerously. During the first
several minutes of operating watch the pump carefully for overheating, vibration, and other abnormal conditions. If trouble develops,
stop pump at once and correct the problem.
PUMP START UP CHECK LIST
These points must be checked after pump installation and before
starting up the pump.
rotation is correct, replace the coupling spacer. If not, connect
the wiring for proper rotation and recheck.
1) Read instruction manual thoroughly and understand it.
7) Check coupling for proper alignment. Realign if necessary.
2) Review pump order head sheet for the service rating of the
pump and any special features.
8) If pump seal chamber is packed, check to be sure that gland
stud nuts are pulled up only finger tight and that the gland is not
cocked.
3) Check all piping connections making certain that they are both
tight and in the proper places. All piping includes seal, cooling,
or heating piping.
4) Make sure that the baseplate has been properly installed.
5) Check the electrical or steam line connections to the driver.
6) Break the coupling by removing the coupling spacer and bump
the motor starting button to check motor rotation. Operating the
pump in reverse rotation may cause extensive damage. If driver
9) Rotate the pump shaft by hand to be sure there is no
binding or rubbing within the pump or driver. Correct any difficulties at once.
10) Check to see that the pump is properly lubricated.
11) Remove all dirt, waste, tools, and construction debris from the
area.
12) Check to see that the coupling guard is securely in place.
SPARE PARTS
To avoid prolonged down time and facilitate rapid repair of damaged pump parts, Dean recommends that the pump user maintain a
minimum stock of spare parts. If the pump service is critical or the
pump parts are of special materials, spare parts stock is even more
important to the user. Such spares inventory may extend from a
spare mechanical seal or seal parts through complete casing back
cover-impeller-bearing housing assemblies prepared for immediate
insertion in the pump casing. Consult your Dean representative who
will assist you in selecting your spares stock.
ORDERING SPARE PARTS
Spare part orders will be handled with a minimum delay if the following information is furnished by the customer with the order:
1) Give the pump serial number and size. These may be found on the
pump name plate. The serial number is also stamped on the suction flange or the top edge of the bearing housing front flange.
2) Give the part name, part number, and material of part. These
should agree with the standard parts list.
3) Give the quantity of each part required.
4) Give complete shipping instructions.
12
PUMP DESIGNATION CODE FOR PH2110
PUMP WITH STANDARD SEAL CHAMBER PH2111
pH2111
Pump with Standard Seal
Chamber (no jacketing)
pH2112
Pump with Jacketed Seal Chamber
pH2114
Pump with Jacketed Seal Chamber
and Bearing Housing Oil Cooler
pH2116
Pump with Large Bore Seal Chamber
pH2117
Pump with Jacketed Seal Chamber
and Jacketed Casing
pH2118
Pump with Jacketed Seal Chamber,
Jacketed Casing, and Bearing
Housing Oil Cooler
PARTS LIST
Part #
3
Impeller
5
Casing
5A
Casing Drain Plug
5D
Casing Capscrew*
10
Shaft Sleeve*
10K
Section Drawing
#01950H
PUMP WITH STANDARD SEAL CHAMBER PH2111 AND OPTIONAL “C” FACE MOTOR SUPPORT
Part Name
Sleeve Key
13
Seal Chamber Gland
14
Gland Stud
15
Gland Nut
17
Lantern Ring*
22
Casing Back Cover
22A
25
Back Cover to Bearing
Housing Capscrew*
Radial Bearing*
25A
Thrust Bearing*
26
Bearing Housing
28
Bearing End Cover*
28A
Bearing End Cover Capscrew*
28B
End Cover Adjusting Screw*
28C
29
Adjusting Screw Locking Nut*
Pump Shaft
75A
Tapered Retaining Ring*
75B
Large Tapered Retaining Ring*
76
Labyrinth Seal – Front*
76A
Labyrinth Seal – Back*
77
Casing Gasket
77A
Impeller Gasket*
77B
End Cover Gasket*
80
Vent*
83
Motor Support (C Face)
95A
Mechanical Seal Stationary
95B
Mechanical Seal Rotary
109
Bearing Housing Oil Cooler
* Denotes parts that are interchangeable in all
pH2110 series pumps.
Section Drawing
#01950J
13
PUMP DESIGNATION CODE FOR PH2140
PUMP WITH STANDARD SEAL CHAMBER PH2141
pH2141
Pump with Standard Seal
Chamber (no jacketing)
pH2142
Pump with Jacketed Seal Chamber
pH2144
Pump with Jacketed Seal Chamber
and Bearing Housing Oil Cooler
pH2146
Pump with Large Bore Seal Chamber
pH2147
Pump with Jacketed Seal Chamber
and Jacketed Casing
pH2148
Pump with Jacketed Seal Chamber,
Jacketed Casing, and Bearing
Housing Oil Cooler
PARTS LIST
Part #
Impeller
5
Casing
5A
Casing Drain Plug
5D
Casing Capscrew*
7
Cradle Spacer
9
Bearing Housing Foot
10
10K
Section Drawing
#01916AA
PUMP WITH STANDARD SEAL CHAMBER PH2141 AND OPTIONAL “C” FACE MOTOR SUPPORT
Sleeve Key
Seal Chamber Gland
14
Gland Stud
15
Gland Nut
17
Lantern Ring*
22
Casing Back Cover
22A
Back Cover to Cradle Capscrew*
Radial Bearing*
25A
Thrust Bearing*
26
Bearing Housing
27
Seal Ring*
28
Bearing End Cover*
28A
Bearing End Cover Capscrew*
28B
End Cover Adjusting Screw*
28C
Adjusting Screw Locking Nut*
29
Pump Shaft
31
Bearing Lock Nut*
31A
Bearing Lock Washer*
56†
Casing Foot
75B
Large Tapered Retaining Ring*
76
Labyrinth Seal – Front*
76A
77
14
Shaft Sleeve*
13
25
Section Drawing
#01916AB
Part Name
3
Labyrinth Seal – Rear*
Casing Gasket
77A
Impeller Gasket*
77B
End Cover Gasket*
80
Vent*
83
Motor Support (C Face)
95A
Mechanical Seal Stationary
95B
Mechanical Seal Rotary
109
Bearing Housing Oil Cooler
* Denotes parts that are interchangeable in all
pH2140 series pumps.
† Feet are cast integral with the casing in
certain pump sizes and materials.
PUMP DESIGNATION CODE FOR PH2170/pH3170
pH2171/pH3171
Pump with Standard Seal Chamber (no jacketing)
pH2176/pH3176
Pump with Large Bore Seal Chamber
pH2172/pH3172
Pump with Jacketed Seal Chamber
pH2177/pH3177
Pump with Jacketed Seal Chamber and Jacketed Casing
pH2174/pH3174
Pump with Jacketed Seal Chamber and Bearing
Housing Oil Cooler
pH2178/pH3178
Pump with Jacketed Seal Chamber, Jacketed Casing,
and Bearing Housing Oil Cooler
PARTS LIST
Part #
Part Name
Part #
3
Impeller
22
5
Casing
22A
5A
Casing Drain Plug
5C
Casing Nut (pH3170 only)
5D
Casing Capscrew – pH2170
Casing Stud – pH3170
7
7G
9
10
10K
Cradle Spacer
Spacer to Brg. Hsg. Capscrew
Part Name
Part #
Part Name
Casing Back Cover
56A
Casing Foot Capscrew
Back Cover to Bearing
Housing Capscrew*
56B
Casing Foot Dowel
76
Labyrinth Seal – Front*
25
Radial Bearing*
25A
Thrust Bearing*
26
Bearing Housing
27
Seal Ring*
28
Bearing End Cover*
Bearing Housing Foot
28A
Bearing End Cover Capscrew*
Shaft Sleeve*
28B
End Cover Adjusting Screw*
Sleeve Key
28C
Adjusting Screw Locking Nut*
13
Seal Chamber Gland
29
Pump Shaft
14
Gland Stud
31
Bearing Lock Nut*
15
Gland Nut
31A
Bearing Lock Washer*
17
Lantern Ring*
56†
Casing Foot
76A
77
Labyrinth Seal – Rear*
Casing Gasket
77A
Impeller Gasket*
77B
End Cover Gasket*
80
Vent*
95A
Mechanical Seal Stationary
95B
Mechanical Seal Rotary
109
Bearing Housing Oil Cooler
231
Bearing Lock Ring*
231A
Bearing Lock Ring Screw*
231B
Bearing Lock Ring Washer*
* Denotes parts that are interchangeable in all pH2170/pH3170 series pumps.
† Feet are cast integral with the casing in certain pump sizes and materials.
PUMP WITH STANDARD SEAL CHAMBER PH2171/PH3171
SECTION NO.
01946F
15
PUMP DESIGNATION CODE FOR PH2180
pH2181
Pump with Standard Seal Chamber (no jacketing)
pH2186
Pump with Large Bore Seal Chamber
pH2182
Pump with Jacketed Seal Chamber
pH2187
Pump with Jacketed Seal Chamber and Jacketed Casing
pH2184
Pump with Jacketed Seal Chamber and Bearing
Housing Oil Cooler
pH2188
Pump with Jacketed Seal Chamber, Jacketed Casing,
and Bearing Housing Oil Cooler
PARTS LIST
Part #
Part Name
Part #
3
Impeller
22
5
Casing
22A
5A
Casing Drain Plug
5C
Casing Nut (pH3170 only)
5D
Casing Capscrew (pH2170)*
7
7G
9
25
Casing Back Cover
Back Cover to to Brg. Hsg.
Capscrew*
Part #
Part Name
31A
Bearing Lock Washer*
76
Labyrinth Seal - Front*
76A
Labyrinth Seal - Rear*
Radial Bearing*
77
Casing Gasket*
Impeller Gasket*
Thrust Bearing*
77A
Cradle Spacer*
26
Bearing Housing*
77B
End Cover Gasket*
Spacer to Brg. Hsg Capscrew
27
Seal Ring*
80
Vent*
28
Bearing End Cover*
95A
Mechanical Seal Stationary
Bearing End Cover Capscrew*
95B
Mechanical Seal Rotary
109
Brg. Hsg. Oil Cooler*
231
Bearing Lock Ring*
Bearing Housing Foot
25A
Part Name
28A
10
Shaft Sleeve*
10K
Sleeve Key*
28B
End Cover Adjusting Screw*
13
Seal Chamber Gland
28C
Adjusting Screw Locking Nut*
14
Gland Stud
29
Pump Shaft
231A
Bearing Lock Ring Screw*
15
Gland Nut
31
Bearing Lock Nut*
231B
Bearing Lock Ring Washer*
17
Lantern Ring*
* Denotes parts that are interchangeable in all pH2180 series pumps.
PUMP WITH STANDARD SEAL CHAMBER PH2181
SECTION NO.
01938F
16
DISASSEMBLY AND RE-ASSEMBLY PROCEDURES
WARNING:
Work must be performed only by thoroughly trained and qualified
personnel to assure quality repair and to reduce the possibilities of
injury to personnel and/or damage to equipment. If you do not
have personnel who are capable of safe quality repair of this equipment, we advise you to return the equipment to DEAN PUMP to be
repaired.
When it is necessary to open the pump and/or the pumping system
the fluid will be exposed to the atmosphere and personnel in the
area. For the safety of all involved, the risk of exposure of personnel
to the hazards of the pumpage can be reduced by flushing the entire
system with a compatible, nontoxic, non-hazardous, stable liquid
before opening the pump or the system. In all cases, where the system is flushed or not, use the utmost care around the pumpage and
the pumping system.
Always wear the appropriate protective apparel when working on
or around the pumping equipment. Safety glasses with side shields,
heavy work gloves (use insulated work gloves when handling hot
items), steel-toed shoes, hard hat, and any other protective gear as
needed for protection. One example of other gear would be breathing apparatus when working near toxic materials.
Use only top quality tools.
a) Stop the pump. Turn off the power supply (electricity, steam,
etc.) to the pump driver (motor, turbine, engine, etc.) and lock
the switching device so that it can not be restarted. Tag the
switching device so that no one will attempt to restart the unit.
b) Close the suction and discharge valves completely to isolate the
pump from the system. Lock the valves in the closed position
and tag them so that no one will attempt to open them.
c) Turn off, lock out, and tag all sub-systems and auxiliary equipment and auxiliary supply lines to isolate the pumping unit from
any and all power, energy, and/or fluids.
WARNING:
Do not attempt to perform any work on the unit until you are confident that the pump and its contents have been stabilized at ambient
temperature, and atmospheric pressure.
Put on protective wear to protect human tissue from attack by the
fluids contained in the pump and any sub-systems, and from any
vapors or fumes that could possibly be released from these fluids.
This could mean breathing apparatus face shields, heavy long sleeve
rubber gloves, rubber apron, hood, and possibly more, dependent,
of course, on the properties of the fluids involved and the installed
drain and vent piping arrangement. Personal injury and/or death
can occur if adequate precautions are not taken with regard to the
fluid, the installation and the possibilities of the release of fluid,
vapors, and/or fumes.
d) Remove the coupling guard(s).
e) If the pump and driver are independently mounted to a
common baseplate (not connected to each other with a motor
support (83)), remove the spacer section of the coupling.
Remove the two bolts that secure the bearing housing foot (9) to
the baseplate. Go to step (j).
f) If the pump and driver (motor or turbine) are connected together by a “C” faced motor support (83), disconnect the power
supply from the driver. Remove any conduit and/or piping from
the driver. Place wood blocks and wedges, under the rear feet
of motors sizes 143TC through 215TC, or under the motor support (83) of motors sizes 254TC thru 365TC. These blocks are
to be positioned so as to support the weight of the motor and
the motor support (83) when they are separated from the
pump. Hook a lifting hoist to the lifting eye(s) of the motor and
take the slack out of the cable or chain. Make sure that all of
the components of the lifting apparatus are capable of lifting
the weight.
g) For units with motor sizes 143TC through 215TC, remove the
two bolts that fasten the motor support (83) to the baseplate.
For units with motor sizes 254TC trough 365TC, remove the
two bolts that fasten the rear feet of the motor to the baseplate.
h) Remove the four bolts that fasten the motor support (83) to the
back of the pump. Be careful to support the weight of the motor
and motor support (83) as you are removing these bolts.
Carefully move the motor and motor support (83) assembly horizontally and axially away from the pump, guiding the assembly to clear the pump coupling hub.
i) Remove the coupling elastomer, from the coupling hub. The
elastomer may be in either the pump hub or the motor hub.
j) Drain all the fluids from all the auxiliary sub-systems (lubrication,
cooling, heating, seal barrier, etc.) that are connected to the
pump. Drain each fluid into a separate container. Use caution
required for each fluid after reading the MSDS (Material Safety
Data Sheet) for each.
k) Flush each sub-system with a compatible, non-toxic, non-hazardous, stable liquid. Drain into individual containers for each
fluid. Disconnect and remove all auxiliary piping.
l) Carefully bleed off any pressure remaining in the pump.
Pressure remaining in the pump will be dependent upon the
pressure in the system when the pump was stopped; the quality,
type, and condition of the isolation valves; the thermal expansion values of the fluid and the pump material; and the change
in the vapor pressure of the fluid between the temperature at the
time the isolation valves were closed and the ambient temperature. Bleeding must be through a valved drain line piped to a
closed container mounted lower than the pump. The container
must be arranged with a relief passage to some point where
pressure and fumes will not be harmful to personnel. The container must also have a level device so that determination can
be made that sufficient fluid has been drained to empty the
pump cavity and the volume of fluid that was contained in the
run of suction and discharge pipe between the isolation valves
and the pump. After the initial rush of fluid from the pump
relieves the pressure, the drain valve can be opened further to
speed the draining operation. When fluid quits running into the
drain tank, gage the volume to see if it is sufficient to have fully
drained the contents of the pump and the suction and discharge pipes between the isolation valves.
If the system was constructed without any drain connections, it
will be necessary to consult the designers of the system for safe
draining procedures.
m) Now drain any small piping, that contains the fluid pumped,
from all low points into the same container used to drain the
pump. Do not drain any other fluids (different than the
pumpage) into this container as they may not be compatible.
Personal injury, death, and/or equipment damage could occur.
WARNING:
Even though it might appear that the cavity being drained has completely drained, be extremely careful about opening the system
and/or opening the pump. If something solid in the pumpage moves
to the vicinity of the drain connection, it could seal-off the drain and
maintain pressure in the cavity thought to have been drained. It is
17
also possible that the isolation valves are not sealing and therefore
allowing liquid to flow from the system into the pump. Personal
injury, death and/or equipment damage may occur if great caution
is not exercised.
n) Hook a lifting hoist to the lifting eye in the top of the bearing
housing (26) and take the slack out of the cable or chain. Make
sure that all of the components of the lifting apparatus are capable of lifting the weight. Because of the above possibility, when
you loosen the gasketed joint at the back of the casing (5),
loosen the casing capscrews (5D) or the casing stud nuts (5C)
(pH3170) only one full turn. Use jack screws in the holes provided in the flange of the cradle spacer (7), or the bearing
housing (26) of the pH2110, to break the gasket seal. If fluid
and/or pressure remains in the pump, it will spray out now.
Use extreme caution, wearing protective gear, to avoid injury.
Do not proceed with disassembly until leakage ceases completely. If leakage does not cease, the isolation valves may not
be sealing. Note that if the pump was purchased without a
drain, the pump will contain fluid which will flow out at the time
the bolts (or nuts) are loosened and the gasket seal is broken.
WARNING:
When you open the pump, the fluid will be exposed to the atmosphere and personnel in the area. For the safety of all involved, the
risk of exposure can be reduced by flushing the cavity that was just
drained with a compatible, non-toxic, non-hazardous, stable liquid,
before disassembling the pump.
o) Remove the casing capscrews (5D) or the casing stud nuts (5C)
(pH3170) and using a mechanical lifting apparatus to support
the weight, pull the rotating unit from the casing (5).
p) Flush the wetted parts, now exposed, with a compatible, nontoxic, non-hazardous, stable liquid.
q) Remove the gasket from the face of the casing (5) or the casing
back cover (22) dependent on which one the gasket may have
adhered to. The type of gasket and material of construction will
vary with service requirements. Attack by prying and then, if
necessary, layering off the old gasket with a sharp scraper,
attempting to remove it in the largest possible pieces. Wear
heavy leather, long sleeve work gloves when using the scraper.
Wet the gasket before and during the scraping operation to
reduce the possibility of fibers becoming airborne. Wear a respirator during this operation and until all debris has been disposed of in a plastic bag. Remove all of the gasket material
down to clean metal surfaces on both parts that contacted the
gasket. Place all of the gasket residue in a plastic bag, seal the
bag and dispose.
r) The rotating assembly of the pump can now be moved to a
more convenient location for further disassembly. Use mechanical lifting equipment to move assemblies and components.
DISASSEMBLY PROCEDURE
To further dismantle the pump, perform the following steps in the
sequence shown:
WARNING:
Use only high quality tools.
Flush parts as disassembled to remove hazardous residue from the
pumpage and/or sub-system fluids.
Wear protective equipment as advised at the beginning of this
section.
18
Use mechanical lifting equipment to lift assemblies and components.
Do not apply heat to parts to assist in disassembly. Explosion could
occur causing personal injury, death, and/or damage to equipment.
Do not attempt to drill, saw or otherwise cut parts to remove them.
Explosion and/or fuming could occur causing personal injury, death,
and/or equipment damage.
Do not hammer on any parts. Personal injury and/or damage to
equipment may occur.
a) Remove gland stud nuts (15) and slide gland (13) away from
seal chamber.
b) Remove packing from stuffing box if pump is packed. Use
packing extractor.
c) Remove the impeller (3) using a wrench on the flats of the pump
coupling hub to rotate the pump shaft (29) while holding the
impeller against turning. The impeller has a hex boss to aid
removal. The impeller thread is right hand.
d) Remove the two capscrews that secure the casing back cover
(22), to the bearing housing (26) of the pH2110 and
pHP2110 series pumps, or to the cradle spacer (7) of all other
series pumps. Carefully remove the casing back cover (22) axially, so as to not damage the pump shaft (29), shaft sleeve
(10), or mechanical seal rotary (95B).
e) If the pump is equipped with a mechanical seal, loosen the set
screws that retain the seal and remove the mechanical seal
rotary (95B). Remove the mechanical seal stationary (95A) and
gland (13). Remove the mechanical seal stationary (95A) from
the gland (13).
f) Remove the impeller gasket (77A) from the end of the pump
shaft (29) or from the impeller (3) depending on where the
gasket remained when the impeller (3) was removed.
g) Remove the shaft sleeve (10) and the sleeve key (10K) from the
pump shaft (29).
h) If the pump is of the pH2140, pHP2140, pH 2170, pH 3170,
or pH2180 series, and if you desire to do so, you can remove
the spacer cradle (7) from the bearing housing (26) by removing the four capscrews that hold these two pieces together.
Normally there is no reason to remove the spacer cradle (7).
i) Remove the pump coupling hub from the pump shaft (29).
j) If the pump is fitted with an optional oil cooler (109), remove it
at this time. Remove the “1/2" tube X 1/2" male pipe thread” fitting from one end of the oil cooler (109). Remove the tubing nut
and tubing ferrule from the “1/2" tube X 1" male pipe thread”
fitting that is in the bearing housing (26) on the same side that
you removed the first fitting. Unscrew the “1/2" tube X 1" male
pipe thread” fitting, that is in the opposite side of the bearing
housing (26), from the bearing housing and pull the oil cooler
(109) out through the 1" NPT opening.
k) Remove the bearing end cover capscrews (28A). Pull the pump
shaft (29), bearings (25 & 25A), and bearing end cover (28)
as an assembly, axially, from the bearing housing (26).
l) Place the shaft assembly in a hydraulic press and remove the
radial bearing (25) by pressing it off of the pump shaft (29). Do
not hammer on the bearings in any way as it may result in serious damage to the bearings or the pump shaft (29).
m) If the pump is of the pH2110, pHP2110, pH2140, or pHP
2140 series, use snap ring pliers to remove the large tapered
retaining ring (75B) from the bearing end cover (28). If the
pump is of the pH2170, pH3170, or pHP2180 series, use an
Allen wrench to loosen the bearing lock ring screws (231A).
Remove the bearing lock ring screws (231A), the lock ring
washers (231B), and the bearing lock ring (231). Slide the
bearing end cover (28) and the rear labyrinth seal (76A) as an
assembly, axially, off the thrust bearing (25A) and the end of
the pump shaft (29).
n) If the pump is of the pH2110 or pHP2110 series, use snap ring
pliers to remove the tapered retaining ring (75A) from the
pump shaft (29). If the pump is of the pH2140, pHP2140,
pH2170, pH3170, or pH2180 series, bend the tab of the
bearing lock washer (31A) out of the slot in the bearing lock
nut (31). Remove the bearing lock nut (31) and bearing lock
washer (31A) from the pump shaft (29).
o) Press the thrust bearing(s) (25A) from the pump shaft (29). Do
not hammer on the bearings in any way as it may result in serious damage to the pump shaft (29).
p) If the pump is of the pH2110 or pHP2110 series, press the
front labyrinth seal (76) from the front of the bearing housing
(26).
q) If the pump is of the pH2140, pHP2140, pH2170, pH3170,
or pH2180 series, press the seal ring (27) and the front
labyrinth seal (76), as an assembly, from the front of the bearing housing (26). Press the front labyrinth seal (76) from the
seal ring (27).
r) Press the rear labyrinth seal (76A) from the bearing end cover
(28).
s) Remove the o-rings from the O.D. and the I.D. of both the
labyrinth seals (76 & 76A).
t) Remove the end cover gasket (77B), which is an o-ring, from
the bearing end cover (28).
u) Remove the bearing housing vent (80) and the bull’s eye sight
glass from the bearing housing (26).
v) If so desired, the bearing housing foot (9), of the pH2140,
pHP2140, pH2170, pH3170, and pH2180 series, pumps,
can be removed from the bottom of the bearing housing (26).
w) Clean and inspect all parts. Discard and replace any damaged
or worn parts.
REASSEMBLY PROCEDURE
WARNING:
Use only high quality tools.
Wear protective equipment as advised at the beginning of this
section.
Use mechanical lifting equipment to lift assemblies and components.
Do not hammer on any parts. Personal injury and/or damage to
equipment may occur.
Do not attempt to manufacture parts or modify Dean Pump parts in
any manner. Death, personal injury, and/or damage to equipment
may occur. One example of the above would be overboring the
stuffing box or the seal chamber, which removes metal that is
required to contain fluids. Removal of this metal reduces the pressure containing capability of the part and may create a leak path
through the part. If the part separates two different fluids, mixing of
the fluids could cause an explosion. Water leakage into a heat
transfer liquid is one example of an explosive possibility.
Replace all gaskets, seals, bearings, and lubricants. Replace all parts
that have worn, corroded, eroded, or otherwise deteriorated.
Use only Dean Pump Division of Met-Pro Corporation parts.
To reassemble the pump, perform the following steps:
a) Clean all parts thoroughly.
b) If the pump is of the pH2140, pHP2140, pH2170, pH3170,
or pH2180 series, and if the bearing housing foot (9) was
removed, bolt it back to the bearing housing (26). Be sure that
the dowel pins are in place between the foot (9) and the housing (26). Tighten the capscrews to 50 ft. lb for series pH2140,
pHP2140, pH2170, pH3170 pumps. Tighten the capscrews to
80 ft. lb for series pH2180 pumps.
c) Apply pipe sealant to the threads of the bull’s eye sight glass
and tighten it into the side of the bearing housing (26). Torque
to 50 ft. lb.
d) Install the vent (80), without thread sealant, into the top of the
bearing housing (26). Tighten to 20 ft. lb.
e) Install new o-rings onto the O.D. and into the I.D. of both the
labyrinth seals (76 & 76A). Lubricate the o-rings on the O.D. of
both labyrinths.
f) If the pump is of the pH2110 or the pHP2110 series, press the
front labyrinth seal (76) into the front of the bearing housing
(26). The “expulsion port” (the slot in the O.D.) of the labyrinth
(76) must be positioned so that it is towards the bottom of the
bearing housing (26).
g) If the pump is of the pH2140, pHP2140, pH2170, pH3170,
or pH2180 series, press the front labyrinth seal (76) into the
seal ring (27). Press the seal ring (27), labyrinth seal (76)
assembly into the front of the bearing housing (26). The “expulsion port” (the slot in the O.D.) of the labyrinth (76) must be
positioned so that it is towards the bottom of the bearing housing (26).
h) Press the rear labyrinth seal (76A) into the bearing end cover
(28). The “expulsion port” (the slot in the O.D.) of the labyrinth
(76A) must be positioned inline with the “oil return” (slot in the
bore) of the end cover (28).
i) Press a new thrust bearing(s) (25A) onto the pump shaft (29)
and against the shaft shoulder. Do not hammer on the bearings
in any way as it will result in serious damage to the bearings or
the pump shaft. Press on the inner race of the bearing only, do
not press on the outer race of the bearing. The thrust bearing in
the pH2170 and pH3170 series pumps is made up of a
matched pair of angular contact bearings that must be installed
“back-to-back”. See the cross sectional drawing for the
pH2170/pH3170 pumps.
19
j) If the pump is of the pH2110 or pHP2110 series, install the
tapered retaining ring (75A) into the groove in the pump shaft
(29) with the tapered side away from the bearing.
k) If the pump is of the pH2140, pHP2140, pH2170, pH3170,
or pH2180 series, place a new bearing lock washer (31A)
onto the pump shaft. Tighten the bearing lock nut (31) against
the lock washer (31A), while holding the shaft (29) against rotation with a hook spanner in the keyway. Another way to keep
the shaft from turning is to place the coupling hub onto the shaft
and hold it with a wrench. Tighten the nut to the torque value
below:
75 ft. lb. on the pH2140 & pHP2140 series
90 ft. lb. on the pH2170 & pH3170 series
100 ft. lb. on the pH2180 series
Bend one of the tabs of the bearing lock washer (31A) into the
corresponding slot in the bearing lock nut (31).
l) Lubricate the O.D. of the thrust bearing (25A), the bore of the
end cover (28), the I.D. of the rear labyrinth seal (76A), and the
area of the pump shaft (29) on which the labyrinth will be
mounted. Slide the bearing end cover (28), labyrinth seal (76A)
assembly carefully over the end of the pump shaft (29), and
fully onto the thrust bearing (25A). Be careful that the o-ring in
the I.D. of the labyrinth seal (76A) does not contact the keyway
of the shaft (29) and be damaged. Placing a piece of plastic
electrical tape over the keyway, before this assembly operation,
will give a measure of protection. The fit between the bearing
(25A) and the bearing end cover (28) may be tight enough that
you may need to tap the end of the pump shaft (29) lightly with
a soft faced hammer to slide the bearing (25A) into the bearing
end cover (28).
m) If the pump is of the pH2110, pHP2110, pH2140, or
pHP2140 series, install the large tapered retaining ring (75B),
with the tapered side away from the bearing (25A), into the
bearing end cover (28) and against the face of the thrust bearing (25A). Position the gap between the ends of the retaining
ring (75B) so that it is centered over the oil return slot in the bore
of the end cover (28). If the pump is of the pH2170, pHP3170,
or pH2180 series, install the bearing lock ring (231) into the
bearing end cover (28) and against the face of the thrust bearing. Place the bearing lock ring washers (231B) onto the bearing lock ring screws (231A) and snug them evenly against the
bearing lock ring (231). Tighten the bearing lock screws
(231A) evenly to 8 ft. lb.
n) Press a new radial bearing (25) onto the pump shaft (29) and
against the shaft shoulder. Press on the inner race, of the bearing, only, do not press on the outer race of the bearing. Press
against the coupling end of the pump shaft (29), do not press
against the end cover (28).
o) Lubricate and install a new end cover gasket (77B), which is an
o-ring, into the groove in the O.D. of the bearing end cover
(28).
20
end cover (28) so that the “expulsion port” of the rear labyrinth
seal (76A) is towards the bottom of the bearing housing (26).
At this point the drilled holes in the bearing end cover (28)
will line up with the tapped holes in the bearing
housing (26). Be careful to hold the axis of the shaft (29) inline
with the axis of the bearing housing (26), and not damage the
o-ring in the bore of the front labyrinth seal (76).
r) Back-off the end cover adjusting screws (28B) until they are not
protruding through the opposite side of the flange of the bearing end cover (28). Install the bearing end cover capscrews
(28A) and lightly snug them down, about 5 ft. lbs.
s) If the pump was purchased with the optional bearing housing
oil cooler (109), re-install it into the bearing housing (26). Install
the oil cooler (109) into the open 1” NPT connection and carefully guide the end of the tubing through the tubing connector
on the opposite side of the bearing housing (26). Apply pipe
sealant to the 1” male pipe threads, and tighten the 1” tube
connector into the bearing housing (26) with a torque of 50 ft.
lb. The ferrules used in these tube connectors are plastic, to
enable dis-assembly and re-assembly without damaging the
cooling tube. When tightening these connectors, tighten only to
5 ft. lb.
t) If the pump is of the pH2140, pHP2140, pH2170, pH3170,
or pH2180 series, and if the cradle (7) was removed, replace
it. Center the four tapped holes in the cradle (7) in the holes in
the bearing housing (26). Install the capscrews and tighten
them to:
50 ft. lb. for series pH2140, pHP2140, pH2170, and
pH3170
65 ft. lb. for series pH2180 series
u) Replace the shaft sleeve key (10K) and install a new shaft
sleeve (10) onto the pump shaft (29).
v) Replace the coupling key into the keyway at the coupling end
of the pump shaft (29).
w) If the pump and driver are independently mounted to a common baseplate, place the pump coupling hub (including the
four axial bolts) onto the pump shaft (29), flush with the end of
the pump shaft, and tighten the set screws. Go to step (y).
x) If the pump and driver are connected together by a “C” faced
motor support (83), place the pump coupling hub onto the
pump shaft (29) to the location noted below, and tighten the set
screws.
For use with motor sizes 143TC and 145TC,
place pump hub to overhang the pump shaft by 1/16”.
For use with motor sizes 182TC and 184TC,
place pump hub so that the pump shaft protrudes 3/16”.
For use with motor sizes 213TC and 215TC,
place pump hub to overhang the pump shaft 5/16”.
p) Lubricate the I.D. of the front labyrinth seal (76), both of the
bores in the bearing housing (26), the O.D. of the radial bearing (25), the O.D. of the bearing end cover (28), and the area
of the pump shaft (29) onto which the front labyrinth seal (76)
will be located.
For use with motor sizes 254TC and 256TC,
place the pump hub flush with the end of the pump shaft.
q) Carefully slide the shaft (29) and bearing (25 & 25A) assembly, impeller end of shaft first, into the bearing housing (26),
from the back end of the bearing housing. Rotate the bearing
For use with the motor sizes 324TSC, 326TSC,
364TSC and 365TSC,
place the pump hub flush with the end of the pump shaft.
For use with motor sizes 284TSC and 286TSC,
place pump hub to overhang the pump shaft by 3/16”.
y) If the pump is to be sealed with packing, slide the packing
gland (13) over the pump shaft (29) and up against the front
labyrinth seal (76).
z) Install the casing back cover (22) to the bearing housing (26) of
the pH2110 and the pHP2110 series pumps, or to the cradle
spacer of the pH2140, pHP2140, pH2170, pH3170, and
pH2180 series pumps. Install the two capscrews (22A) that
hold the casing back cover (22) into place. Tighten the capscrews (22A) to 20 ft. lb.. Do not overtighten.
aa) Place a new impeller gasket (77A) over the end of the pump
shaft (29) and against the shaft sleeve (10). Screw the impeller
(3) on to the end of the pump shaft (29) and tighten it to the
torque value below:
40 ft. lb. for pH2110 and pHP2110 series
90 ft. lb. for pH2140 and pHP2140 series
120 ft. lb. for pH2180 series
ab) Screw the end cover adjusting screws (28B) into the bearing
end cover (28) by hand until they firmly contact the bearing
housing (26). Loosen the bearing end cover capscrews (28A)
and back them off until there is about 1/4” between the underside of the screw heads and the face of the bearing end cover
(28). Carefully tighten the end cover adjusting screws (28B)
evenly (turn each screw the same number of revolutions) until
the clearance between the back of the impeller (3) and the casing back cover (22) is 0.008” to 0.012”. Measure this clearance with a feeler gauge. Tighten the bearing end cover capscrews (28A), to 20 ft. lb. if the pump is of the pH2110 or
pHP2110 series, and 50 ft. lb. if the pump is of the pH2140,
pHP2140, pH2170, pH3170, or pH2180 series. Recheck the
clearance, if it is still correct, tighten the adjusting screw lock
nuts to 20 ft. lb. if the pump is of the pH2110 or pHP2110
series, and 50 ft. lb. if the pump is of the pH2140, pHP2140,
pH2170, pH3170, or pH2180 series.
ac) If the pump is to be sealed with packing, do so now. See the
“Installation and Maintenance of Seal Chamber Packing”
section of this manual. Go to step (ai).
ad) If the mechanical seal, to be installed, is not of the cartridge
type, scribe a line on the shaft sleeve (10) exactly in line with
the face of the seal chamber as described in the section
“Installation of Mechanical Seals”.
ae) Remove the impeller (3). Remove the casing back cover (22).
af) Install the mechanical seal components onto the shaft sleeve
(10). See the “Installation of Standard Mechanical Seals”
section of this manual, and the seal drawing supplied with the
new mechanical seal.
ag) Install the casing back cover (22), to the bearing housing (26)
of the pH2110 and pHP2110 series pumps, or to the cradle
spacer of the pH2140, pHP2140, pH2170, pH3170, or
pH2180 series pumps. Install the two capscrews (22A) that
hold the casing back cover (22) into place. Tighten the capscrews (22A) to 20 ft. lb. Do not overtighten.
ah) Reinstall the impeller gasket (77A) and the impeller (3) onto the
pump shaft (29). Tighten the impeller (3) to 40 ft. lb. for
pH2110 and pHP2110 series pumps. Tighten the impeller (3)
to 90 ft. lb. for pH2140 pHP2140, pH2170, and pH3170
series pumps. Tighten the impeller (3) to 120 ft. lb. for the
pH2180 series pumps.
ai) Rotate the pump shaft by hand to be sure there is no internal
rubbing or binding.
aj) The partial assembly can now be taken to the installation site.
Use proper lifting equipment and methods.
ak) Place a new casing gasket over the casing back cover (22). Unscrew the two casing jack bolts, in the flange of the bearing
housing (26) of the pH2110 and pHP2110 pumps, or the cradle spacer (7) of the pH2140, pHP2140, pH2170, pH3170,
or pH2180 series pumps, until neither protrudes from the flange
towards the casing. Inspect the face of the casing, where the
jack screws made contact during disassembly, and carefully
remove any burrs with a file.
al) Using a hoist, to lift and position, the partial pump assembly,
install it into the pump casing (5). If the pump is of the pH2110,
pHP2110, pH2140, pHP2140, pH2170, or pH2180 series,
screw the casing capscrews (5D) by hand into the casing (5)
but do not tighten them yet. If the pump is of the pH3170
series, screw the casing stud nuts (5C) onto the casing studs
(5D) by hand but do not tighten them yet.
am) If the pump and driver are independently mounted to a common baseplate, go to step (ax).
an) If the pump and driver are connected together by a “C” faced
motor support (83), place wood blocks and wedges under the
bearing housing (26) to support the pump.
ao) Place the motor coupling hub onto the motor shaft to the location noted below, and tighten the set screws.
On motor sizes 143TC and 145TC,
place the motor hub flush with the end of the motor shaft.
On motor sizes 182TC and 184TC,
place the motor hub so that the motor shaft protrudes 1/4”.
On motor sizes 213TC and 215TC,
place the motor hub to overhang the motor shaft by 5/16”.
On motor sizes 254TC and 256TC,
place the motor hub flush with the end of the motor shaft.
On motor sizes 284TSC and 286TSC,
place the motor hub to overhang the motor shaft by 3/16”.
On motor sizes 324TSC, 326TSC, 364TSC and 365TSC,
place the motor hub flush with the end of the motor shaft.
ap) On motor sizes 143TC, 145TC, 182TC and 184TC, bolt the
spacer section of the coupling to the motor hub.
aq) Place the coupling elastomer into the pump coupling hub.
ar) Lift the motor and motor support (83) assembly, with a hoist,
and position it so that the motor support pilots onto the end of
the bearing housing (26) and so that the motor end of the coupling engages the coupling elastomer that is retained in the
pump hub of the coupling. It may be necessary to rotate the
motor shaft slightly to allow the coupling components to
engage. Install the bolts that retain the motor support (83) to the
bearing housing (26). Hand tighten the bolts.
21
as) Remove all blocks and wedges while maintaining support with
a hoist. Gently and carefully lower the hoist enough to allow
the weight to seat the supporting feet onto the baseplate. When
the support feet make full contact with the base, lightly tighten
the casing capscrews (5D) and the bolts that retain the motor
support (83) to the bearing housing (26).
weight of the unit seats the bearing housing foot (9) firmly
against the baseplate. Tighten the casing bolting evenly to the
torque value below:
50 ft. lb. for 1/2” capscrews (5D)
80 ft. lb. for 5/8” nuts (5C) or capscrews (5D)
105 ft. lb. for 3/4” capscrews (5D)
at) Tighten the casing capscrews (5D) evenly to 50 ft. lb. for 1/2”
bolts and 80 ft. lb. for 5/8” bolts.
ay) Bolt the bearing housing foot (9) to the baseplate. Tighten the
capscrews evenly to the torque value below:
50 ft. lb. for 1/2” capscrews (5D)
105 ft. lb. for 3/4” capscrews (5D)
au) Tighten the motor support (83) to bearing housing (26) bolts to
50 ft. lb. for pH2110 or pHP2110 series pumps and 65 ft. lb.
for pH2140 and pHP2140 series pumps.
az) Rotate the pump shaft by hand to check for rubbing or binding.
av) Bolt the pump assembly to the baseplate, at the motor support
foot (9) for motor sizes 143TC through 215TC, or at the rear
two feet of the motor for motor frames 254TC through 365TSC.
ba) Align the pump and driver shafts. Reinstall the coupling spacer.
aw) Rotate the pump shaft by hand to check for rubbing or binding.
Go to step (bb).
bc) Lubricate the pump according to the “Pump Lubrication” instructions.
ax) Gently allow the hoist to lower the pump assembly until the
bd) Reinstall any auxiliary piping and drain plugs that were
removed during disassembly.
bb) Reinstall the coupling guard(s).
be) Remove tools, old parts, and debris from the area around the
pump.
bf) Follow “Starting the Pump” instructions, to restart the pump.
22
INSTALLATION AND MAINTENANCE OF SEAL CHAMBER PACKING
The proper installation and maintenance of packing to seal a pump
shaft is not difficult but must be properly done to provide good packing and pump shaft sleeve life. All packing must be allowed to leak.
This leakage is the only lubrication for the packing and additionally
provides cooling to remove part of the frictional heat built up
between the shaft sleeve and the packing. Failure to allow sufficient
leakage will result in short packing and shaft sleeve life and
increased power consumption of the pumping unit. It is entirely possible to stall a centrifugal pump by clamping the packing gland down.
PACKED SEAL CHAMBER WITH LANTERN RING
Dean pumps are shipped from the factory without packing in the
seal chamber. A complete set of die molded packing specified for
the service is shipped with the pump in a separately labeled carton.
The pump seal chamber must be properly packed before the pump
is put into service.
The seal chamber may be packed either with or without a lantern
ring (also known as a seal cage or lantern gland) as the service of
the pump dictates. When the pump section pressure is above 100
psig a lantern ring is not recommended. When the pump is a selfpriming type, the lantern gland should be used to provide a means
to seal against air leakage into the pump during the priming cycle.
S = When soft packing rings are furnished in a set with metallic rings, install the soft
rings in the locations marked “S”.
PACKED SEAL CHAMBER WITHOUT LANTERN RING
PURPOSE OF LANTERN RING
Lantern rings are made of Teflon or suitable metal as the service
demands. They are of split construction and may be easily installed
or removed without disassembling the pump. A lantern ring is used
in the seal chamber with packing for these reasons:
1) To permit the introduction of a sealing liquid into the seal chamber
to prevent leakage of air into the pump through the packing when
the pump suction pressure is less than atmospheric pressure. The
sealing liquid may be from an internal seal connection or from an
external source. This is required on self-priming pumps.
2) To permit introduction of grease, oil or other suitable lubricant to
the packing to provide lubrication or cooling.
INTERNAL SEAL CONNECTION TO THE LANTERN RING
An internal seal connection is used to inject pumpage from the pump
casing into the lantern ring through the lantern ring connection of the
seal chamber to seal the pump against air leakage as noted above.
It can be used only when the pumped liquid is clean and non-abrasive.
The pumped liquid introduced through the internal seal connection to
the lantern ring will not seal the pump against air leakage through
the packing when the pump is idle or on stand-by service.
EXTERNAL SEAL CONNECTION TO THE LANTERN RING
The sealing liquid introduced to the lantern ring may be from a
source external to the pump. It must be introduced at a pressure
above seal chamber pressure and must be non-corrosive, non-abrasive and 150°F or less in temperature. The connection is made to the
lantern ring connections on the pump seal chamber.
The lantern ring connection on the pump seal chamber is also used
to introduce grease, oil, or other suitable lubricants to the lantern
ring.
LANTERN RING NOT USED
When the pump suction pressure is above atmospheric pressure or
the seal chamber is pressure sealed (no impeller balance holes) and
neither internal nor external liquid or lubricant is required to the
packing, the lantern ring is not used and the seal chamber is packed
full with rings of packing.
PACKING INSTALLATION
These instructions apply to the conventional woven, braided, folded,
and wrapped packings. Packings of multifilament Teflon, braided
carbon filament, compressed carbon sheet, and other special types
or materials may require special installation techniques.
The way in which the packing is installed in the seal chamber is
important to the good service life of the packing and the shaft
sleeve. Incorrect installation will lead to excessive leakage and may
cause higher power requirements.
The use of a packing tamper (split bushing) is recommended to
properly seat the packing rings. Such a tool is easily made from
wood or metal in the form of a hollow cylinder. The inside diameter
must be slightly larger than the shaft sleeve and the outside slightly
smaller than the seal chamber bore. Split the piece lengthwise to
allow insertion in the seal chamber. More than one length of packing tamper may be necessary. Suit the lengths to the particular
pump.
All packing rings furnished by Dean Pump are die-molded to fit the
seal chamber. To place a ring on the shaft sleeve, open the ring at
the split at the right angle to the plane of the ring. This will best
retain the molded form and avoid distortion. Successive rings should
be installed with the joints at 90° intervals.
Foil wrapped packing must be installed with the foil laps running in
the direction of shaft sleeve rotation on the inside of the ring.
Metallic packing should be lubricated, on the wearing face only,
with a dry graphite lubricant before insertion.
23
Foil wrapped packing sets are furnished with soft rings of fibrous
packing which are placed between the hard metallic rings in the
locations shown in the diagrams. These rings help to furnish lubrication during the run-in period. Being soft, they are more sensitive to
compression loads and care must be taken during the adjustment
period.
Follow these steps:
1) With the packing gland slid back against the splash collar, place a
ring of packing on the shaft sleeve and enter it carefully into the
seal chamber. Install a second ring, and a third ring if appropriate.
Stagger all joints at 90° intervals. Follow the proper sequence if
hard and soft rings are used. Using a packing tamper in the seal
chamber, slide the packing gland up on the packing gland studs,
put on the gland stud nuts and tighten them evenly and firmly, seating the packing rings firmly against the bottom of the seal chamber.
This should make the shaft difficult to turn by hand.
2) Back off the gland stud nuts and the packing gland and remove the
packing tamper.
3) If a lantern ring is to be used, check the packing and pump
specifications to determine its position and install it with the proper
number of rings of packing between it and the bottom of the seal
chamber.
4) Continue to pack the pump with packing rings placed on the shaft
sleeve until the seal chamber is nearly full and seat them firmly as
above. Packing ring joints should be staggered at 90° intervals.
5) Back off the gland stud nuts to finger tightness.
6) Rotate the pump shaft by hand to be sure it is not locked.
7) Final adjustment of the packing compression must be made with
the pump running. Start and stop the pump several times to begin
the running-in period. Allow sufficient leakage to assume good
lubrication during the adjustment. Pull up the gland stud nuts 1/8
turn at a time. Allow a running in period between adjustments.
Continue adjustment until the desired leakage control is reached.
The minimum leakage rate depends on a number of things: liquid
pumped, packing used, temperature, seal chamber pressure, and
the condition of the pump. In any case, some leakage is necessary
to both lubricate and cool the packing. Minimum rates may vary
from a few drops per minute to as much as 1/2 pint per minute.
8) As the packing wears in service, the gland should be readjusted to
maintain the minimum leakage.
9) After the gland has been taken up to full travel, an additional ring
of packing may be placed in the seal chamber. When the gland
has again been taken up to full travel the seal chamber should be
repacked completely.
USUAL CAUSES OF PACKING FAILURE AND EXCESSIVE SEAL
CHAMBER LEAKAGE
1) Packing has not been installed properly.
2) Packing used is not suitable for the temperature and pressure
involved or may be subject to attack by liquid handled.
3) Inner rings are not thoroughly seated in the seal chamber so that
outer rings are carrying all the load.
4) Dirt and foreign particles in seal chamber are causing rapid scoring of shaft sleeve.
5) Seal chamber cooling water not turned on.
6) Packing gland pulled up too tight.
When ordering additional packing sets, always refer to packing set number and to pump serial number.
INSTALLATION OF STANDARD MECHANICAL SEALS
Clean, careful, and correct installation of the mechanical seal is
essential to successful mechanical seal operation. Cleanliness and
accuracy of setting cannot be overemphasized.
For instructions on pump disassembly and assembly see the instruction manual relating to the specific pump type.
A correct mechanical seal drawing is furnished with each pump and
the mechanical seal setting dimension is given on this drawing.
Use the setting for the specific pump type in which the installation is
being made.
The pump is first assembled according to the applicable assembly
instructions through the step of proper impeller adjustment.
The mechanical seal rotary unit must be properly located in relation
to the face of the pump seal chamber in order to establish the proper
seal spring tension and resultant proper force on the seal faces. An
error in setting of more than several thousandths of an inch may well
cause seal failure by excessive or insufficient seal face pressure.
INSTALLATION OF SINGLE INSIDE SEALS
To make the seal installation, with the pump partially assembled as
noted above, scribe a mark on the shaft sleeve (10) exactly in line
with the face of the pump seal chamber (Note 1). The impeller (3),
and casing back cover (22) are now removed from the pump. If the
mark causes roughness on the shaft sleeve remove the burr carefully
24
with crocus cloth. Any roughness on the shaft sleeve may damage
the mechanical seal shaft packing when the seal is assembled.
Referring to the mechanical seal drawing, determine the proper “D”
dimension for the seal and pump type. Measure carefully from the
mark which you have made on the shaft sleeve and make a new
mark on the shaft sleeve, towards the pump end, exactly to this
dimension.
If the mechanical seal insert is of the clamped-in style, put the
mechanical seal gland (300) on the pump shaft and slide it back
against the flinger. Put one mechanical seal gland insert gasket
(325), the gland insert (315) and the other gland insert gasket (326)
on the shaft. Make sure that the lapped face of the gland insert is
towards the seal chamber.
Flexibly mounted inserts are two types, depending on the service of
the pump. The insert may be of rectangular cross section grooved for
an o-ring or it may be of L-shaped cross-section used with a Teflon
mounting ring.
To position the o-ring mounted insert, lubricate the inside of the
mechanical seal gland. Place the o-ring in the groove of the insert
and carefully slide the insert into position. Be careful not to damage
the o-ring. Make sure that the lapped face of the insert faces towards
the pump.
To position the Teflon mounted insert, lubricate the inside of the
mechanical seal gland. Carefully slide the Teflon mounting ring into
position in the gland and then slide the insert into place. The slot in
the stationary insert must index with the drive pin.
Put the mechanical seal gland and insert on the shaft and slide it
back against the flinger. Be careful not to damage the insert or its
mounting. Put the gland gasket (324) on the shaft. Slide the seal
rotary unit assembly carefully onto the shaft sleeve being particularly
careful not to damage the seal shaft packing (345). Be sure that the
shaft sleeve hook is firmly against the shoulder on the shaft. Set the
rotary unit carefully to the setting mark you have made on the shaft
sleeve and lock it tightly in place with the set crews. Recheck the setting. Slide the pump casing back cover carefully into place and
guide the seal gland insert and gaskets together with the gland carefully into position. Reassemble the pump. Now tighten the gland stud
nuts carefully and evenly to avoid cocking the gland, making sure
that the gland insert and gaskets are in place.
Before starting the pump, bleed the air from the seal chamber. The
seal chamber must be full of liquid or the seal faces may be damaged by lack of lubrication when the pump is started.
Occasionally a seal may leak very slightly when the pump is first
started. It the leakage continues more than a few moments the pump
should be shut down and the seal removed to discover the cause.
Note 1—Pumps using a single inside balanced seal except Type
609 (metal bellows) are furnished with a short shaft sleeve. The
mark is made on the shaft because the sleeve does not extend to
this point. The second mark (setting mark) is made on the shaft
sleeve and measured from the mark on the shaft.
INSTALLATION OF SINGLE OUTSIDE UNBALANCED SEALS
If the seal rotary unit is scribed with a setting mark, the shaft marking
procedure outlined below may be omitted. The setting mark can be
found on the outer shell of the rotary unit running circumferentially
between the four round holes in the shell. Visible through each hole
is the edge of the metal disc against which the seal springs bear. To
set the seal with the proper spring pressure, first assemble the pump
as noted below with the seal rotary unit slid back against the shaft
splash collar and left loose until the entire bearing housing-impeller
assembly is bolted in place in the pump casing. Then slide the seal
rotary unit into place against the stationary insert and compress the
springs until the metal disc visible through the holes is aligned with
the setting mark scribed on the shell. Tighten the set screws and
check through each hole to determine that the seal rotary unit is correctly compressed and not cocked.
If the seal rotary unit is not marked with a setting line, a setting mark
must be made on the shaft sleeve. To make the seal installation, with
the pump partially assembled as noted above, scribe a mark on the
shaft sleeve (10) exactly in line with the face of the pump seal chamber. The impeller (3), and casing back cover (22) are now removed
from the pump. If the mark causes roughness on the shaft sleeve
remove the burr carefully with crocus cloth. Any roughness on the
shaft sleeve may damage the mechanical seal shaft packing when
the seal is assembled.
Referring to the mechanical seal drawing, determine the proper
“D” dimension for the seal and pump type. Measure carefully from
the mark which you have made on the shaft sleeve and make a
new mark on the shaft sleeve, towards the bearing housing, exactly
to this dimension. Remove the burr if necessary. This mark is the
seal setting mark.
Put the mechanical seal rotary unit on the shaft and slide it back
against the splash collar. Assemble the seal insert gasket (326), the
mechanical seal insert (315), and seal insert gasket (325) to the face
of the seal chamber and, placing the gland (300) in position, pull
down the gland stud nuts tightly and evenly. Make sure that the
lapped face of the seal insert is towards the rotary unit. Reassemble
the pump. Now carefully slide the rotary unit against the seal insert,
compress the rotary unit and set it to the mark on the shaft sleeve
and lock the rotary unit tightly in place with the set screws. Be careful
not to cock the rotary unit.
Before starting the pump, bleed the air from the seal chamber. The
seal chamber must be full of liquid or the seal faces may be damaged by lack of lubrication when the pump is started.
Occasionally a seal may leak very slightly when the pump is first
started. If the leakage continues more than a few moments the pump
should be shut down and the seal removed to discover the cause.
INSTALLATION OF DOUBLE INSIDE UNBALANCED SEALS
To make the seal installation, with the pump partially assembled as
noted above, scribe a mark on the shaft sleeve (10) exactly in line
with the face of the pump seal chamber. The impeller (3) and casing
back cover (22) are now removed from the pump. If this marking or
subsequent marking causes roughness on the shaft sleeve remove the
burr carefully with crocus cloth. Any roughness on the shaft sleeve
may damage the mechanical seal shaft packing when the seal is
assembled.
Referring to the mechanical seal drawing, determine the two “D”
dimensions for the two rotary units. Be sure to determine those for the
particular pump type. Measure carefully from the mark which you
have made on the shaft sleeve and make two new marks on the
shaft sleeve, towards the pump end, exactly to these dimensions.
Double seal stationary inserts are two types depending on the service conditions of the pump. The insert may be of rectangular cross
section grooved for an o-ring or the insert may be of L-shaped cross
section used with a Teflon mounting ring.
To position the o-ring mounted insert, lubricate the inside of the seal
chamber and the inside of the mechanical seal gland. Place the
o-rings in the grooves and carefully slide the inserts into position in
the seal chamber and seal gland. Be most careful not to damage the
o-ring.
To position the Teflon mounted insert, lubricate the inside of the seal
chamber and the inside of the seal gland. Carefully slide the Teflon
mounting rings into position and then slide the stationary inserts into
place. The slots in the stationary inserts must index with the drive pins.
Put the mechanical seal gland, with insert installed, on the pump
shaft sleeve and slide it back against the splash collar. Put the seal
gland gasket on the sleeve and slide it back against the gland. Slide
one seal rotary unit on the sleeve with the carbon face towards the
bearing housing. Be careful not to damage the seal shaft packing.
Be sure that the shaft sleeve hook is firmly against the shoulder on the
shaft. Set the rotary unit carefully to its setting mark on the shaft
sleeve and lock it tightly in place with the set screws. Slide the second rotary unit onto the shaft sleeve with the carbon face away from
the bearing housing. Set it carefully to its setting mark and lock it
tightly in place. Recheck both rotary settings and correct if necessary.
Slide the pump casing back cover very carefully in place over the
seals. Slide the gland gasket and seal gland into place and carefully
and evenly tighten the gland stud nuts. Do not cock the gland. The
pump may now be reassembled.
25
Double seals require a liquid in the seal chamber between the seal
inserts to provide lubrication. This barrier liquid must be supplied at a
pressure of 10 to 15 psi above seal chamber throat pressure to
activate the inboard seal. Before starting the pump, be sure that the
seal chamber is full of this lubrication and that all supply lines for this
liquid are in place and in operation.
Leakage from the outboard seal can be easily spotted. Leakage
through the inboard seal can be detected only by the loss of the barrier (lubricating) liquid from between the seals. If leakage occurs, the
pump must be disassembled and the cause of leakage determined.
If you do not have the correct mechanical seal drawing, write to the
factory giving complete information on pump size, type, and serial
number and the correct seal drawing will be sent.
SPARE PARTS
To avoid prolonged down time and facilitate rapid repair of damaged pump parts, Dean recommends that the pump user maintain a
minimum stock of spare parts. If the pump service is critical or the
pump parts are of special materials, spare parts stock is even more
important to the user. Such spares inventory may extend from a
spare mechanical seal or seal parts through complete casing back
cover-impeller-bearing housing assemblies prepared for immediate
insertion in the pump casing. Consult your Dean representative who
will assist you in selecting your spares stock.
Only Dean Authorized Service Parts shall be used.
ORDERING SPARE PARTS
Spare part orders will be handled with a minimum delay if the following information is furnished by the customer with the order:
1) Give the pump serial number and size. These may be found on the
pump name plate. The serial number is also stamped on the suction flange or the top edge of the bearing housing front flange.
2) Give the part name, part number, and material of part. These
should agree with the standard parts list.
3) Give the quantity of each part required.
4) Give complete shipping instructions.
INSTALLATION, OPERATION AND MAINTENANCE PHP SELF-PRIMING PUMPS
The preceding general and descriptive information for pH Series
pumps also applies to the pHP Series pumps. Special variations are
described below.
INSTALLATION
Suction piping to a self priming pump must be free of air leaks. If it is
not, the pump will not prime. Suction piping should be as short and
direct as possible. Long horizontal runs should be avoided. The less
suction piping, the less chance for air leaks. Flanged joints may be
coated with a rubber compound to avoid leaks at these points.
In applying a self-priming pump, consideration of the discharge piping is necessary. The air from the pump casing must be expelled
without being compressed substantially above atmospheric pressure.
Although a self-priming pump will prime against a small discharge
pressure, the priming time will increase and, if the pressure is high
enough, it will not permit the pump to prime.
If the pump expels air into an empty discharge system, there is more
than adequate volume available to contain the discharged air. If the
discharge line contains a check valve, it should be located a distance away from the pump so as to leave a volume in the discharge
line (between the pump and the check valve) equal to about half the
volume of the suction line.
If the check valve must be installed closer to the pump, install a
valved line from the pump discharge system back to the suction
source. This is left open during the priming cycle and closed when
priming is accomplished and during pumping. The check valve must
be installed in the pump discharge line downstream from the bypass
connection.
If the pump is fitted with a double mechanical seal a barrier liquid
must be supplied at a pressure 10-15 pounds above seal chamber
pressure when the pump is pumping.
If seal chamber packing is used it must include a lantern ring.
Sealing liquid compatible with the pumpage must be supplied under
26
pressure to the lantern ring connection in the seal chamber of the
pump.
Air leaks through the mechanical seal or packing will prevent pump
priming.
OPERATION
A self priming pump requires an initial prime after installation and
before normal operation. Be sure the end of the suction piping is
properly immersed in the liquid to be pumped. Remove the priming
plug in the top of the casing. Use a liquid which is compatible with
the normal pumpage. Pour this into the pump casing until the liquid
level stops rising. Any excess is going out of the pump through the
suction opening. Replace the priming plug and tighten it securely.
Start the pump and let it prime. Stop the pump. There will now be a
quantity of pumpage retained in the special casing. This will permit
the pump to reprime thereafter.
If during the initial prime or repriming, the pump runs without actually priming, there are two possible causes. The first of these is an air
leak in the suction piping. A very small hole is a major air leak and
will prevent priming. A leak of air into the seal chamber will likewise
prevent priming, air being constantly drawn into the pump.
MAINTENANCE
The maintenance of this pump is that described in the manual to
which this addendum is attached. Lubrication, installation, disassembly and assembly instructions therein apply to the pHP pump. The
only difference is the shape of the casing.
Unlike the standard centrifugal pump casing, the pHP self priming
pump casing retains liquid. Care should be taken to drain the casing
thoroughly before the pump is removed from the line.
When a pump has been removed from the line and replaced, the
initial prime described above will be necessary before normal pump
operation.
PHP2110
PHP2140
SECTION NO.
01951B
SECTION NO.
01947C
CUSTOMER’S PLANT MAINTENANCE RECORD
Dean Pump Serial Number
Service
Plant Property Number
Location
Capacity
; T.D.H.
Materials of Construction: Casing
; Imp. Dia.
; Impeller
; Temp.
; Shaft
; RPM
; Shaft Sleeve
Spare Parts in Plant Stock Room
Interchangeable with Dean Serial Numbers
27
MET-PRO
Global Pump Solutions
A Met-Pro Fluid Handling Technologies Business
Combining the Resources of Dean Pump, Fybroc & Sethco
6040 Guion Road • Indianapolis, IN 46254
(317) 293-2930 • FAX: (317) 297-7028
E-mail: [email protected] • Web Site: www.deanpump.com
READ WARNINGS
HAZARDOUS SITUATIONS MAY OCCUR UNLESS THIS EQUIPMENT IS APPLIED, INSTALLED, OPERATED, AND MAINTAINED BY THOROUGHLY QUALIFIED PERSONNEL
IN STRICT ACCORDANCE WITH THE INSTRUCTION MANUAL AND ALL APPLICABLE DRAWINGS AND CODES.
Read the instruction manual completely, before installing, filling, operating, or maintaining this equipment.
Obtain, read, and heed the MSDS (Material Safety Data Sheet) for the fluids being handled before attempting to
fill, operate or maintain this equipment.
Obtain instructions from the Safety Engineer responsible for your facility before performing any work on the pumping equipment and systems.
APPLICATION AND REAPPLICATION - At the time of installation, the equipment received should have already
been selected for the service required. You must read the paperwork for the installation and check serial number of
the pump to assure that you are installing the correct pump into the service for which it was selected.
Many pumps look identical from the outside but can be made of different materials and/or be constructed differently
inside. Personal injury, death, equipment damage, product (pumpage) damage, and/or product loss could occur if
the incorrect pump is installed.
Do not transfer an existing pump to any other service conditions until you have thoroughly reviewed the pump
construction, materials, sizing, sealing, pressure containing capability, head/capacity capability, and
temperature capability with respect to the required service. Consult your DEAN PUMP sales engineer with all the
service requirements and a full description of the existing pump (including the serial number), seal, and sub-systems
so that we can assist you in a successful reapplication.
INSTALLATION - Always wear the appropriate protective apparel when working on or around the pumping equipment. Safety glasses with side shields, heavy work gloves (use insulated work gloves when handling hot items), steel
toed shoes, hard hat, and any other protective gear as needed for protection. One example of other gear would be
breathing apparatus when working near toxic materials.
Use lifting devices, manufactured expressly for the purpose of lifting, to move the pumping machinery. Do not
attempt to lift the assembly or its components manually. Use only devices with lifting capabilities in excess of the
weight of the unit being lifted. Inspect straps,chains, hooks, etc. for damage and lifting capability before use. Lift
only at the center of gravity.
Personal injury, death, and/or equipment damage could occur if good lifting practices are not used.
Install the equipment on a properly designed and built foundation. Assure that the driver (motor, turbine,or engine)
shaft is properly aligned to the pump shaft.
Connect the suction and discharge piping without forcing the piping into position. The pipe flanges must line up
with the pump flanges “freely”. Strain caused by “forcing” and/or misalignment may cause failure of the pumping
unit, flanges, and/or the piping resulting in fluid (pumpage) release. This could cause personal injury, death
and/or damage to this and/or other equipment.
Install a “new” bolt, of the correct size per ASME/ANSI B16.5 and the correct material per ASME/ANSI B16.5,
in every bolt hole. Tighten all bolts evenly. Use only new uncorroded fasteners.
Improper flange bolting may cause failure of the pumping unit, flanges, piping, and/or fluid (pumpage) release
which could cause personal injury, death, and/or damage to this and/or other equipment.
Connect all other (auxiliary) piping necessary for safe and successful operation of the equipment in the specific service conditions of the application. Make sure that all piping is installed into it’s correct connection. Installation of a
pipe into an incorrect location could result in an explosion and personal injury or death as well as damage to this
and/or other equipment.
Install pressure relief valves in any cavities that could be subjected to pressures in excess of the allowable working
pressure of that cavity. Explosion, personal injury, death, and/or damage to this and/or other equipment may
occur if pressure exceeds allowable.
Recheck the alignment between the driver (motor, turbine, or engine) and pump shafts. Installation of piping may have
forced the pump out of alignment. If so, correct the piping to remove the distorting load.
Check to be certain that the shaft coupling spacer is not installed, and then gently bump the motor starter to check
the rotational direction of the motor. If this is not in the direction of rotation required for the pump, make the necessary corrections.
Lock-out the power to the driver (motor, turbine, engine, etc.)
Install the shaft coupling spacer. Be sure that you install all the retaining devices and bolts and that they are tight.
Read and comply with the coupling manufacturer’s instructions. Personal injury, death, and/or equipment damage
could occur if the coupling spacer is not properly installed. Remove all debris and tools from the area near the
shafts and the shaft coupling. Do this to assure that nothing is caught and thrown by the rotating parts when the
pump is started. Bolt the coupling guard securely to the baseplate, checking to assure that it is not contacting any
parts that will rotate when the pump is started.
FILLING - Before filling the pump with liquid, check to see that all possible leak locations are sealed. See that all of
the connections into the pressure containing cavity are sealed or connected to a related piping system that also has
all possible leak paths sealed. Do not plug unused jacket cavities, as this could develop dangerous pressure buildup. Use a wrench on all bolted joints to apply torque to assure that all gaskets are sealed in a tight joint. Check to
see that all threaded pipe connections are also tight enough to seal the liquid pressure that will be applied when
the system is started.
OPERATING - Before starting the unit, see that all personnel are a safe distance away from all possible hazards,
that all sub-systems are connected and operating, that all debris has been removed, that the shaft coupling guard is
securely in place, and that the pump is full of liquid.
Do not operate this pump at shut-off (no flow) as an explosion may result. This can occur with any liquid, even
“cold water”. Personal injury, death, equipment damage, and/or loss of product (pumpage) is likely to occur. If your
system is operated where it is possible for all outlets for the discharge from the pump to be closed while the pump
is still operating, a modification of the system needs to be made to assure a continual flow of pumpage through the
pump. Note that some people have a belief that a bypass line from the discharge side of the pump to the suction
side of the pump will relieve this problem, this is “NOT TRUE”; DO NOT ATTEMPT THIS.
MAINTENANCE, DISASSEMBLY AND REPAIR - Work must be performed only by thoroughly trained and qualified personnel to assure quality repair and to reduce the possibilities of injury to personnel and/or damage to
equipment. If you do not have personnel who are capable of safe quality repair of this equipment, we advise you
to return the equipment to DEAN PUMP to be repaired.
Stop the pump. Turn off the power supply (electricity, steam, etc.) to the pump driver (motor, turbine, engine, etc.)
and lock the switching device so that it cannot be restarted. Tag the switching device so that no one will attempt to
restart the unit.
Close the suction and discharge valves completely to isolate the pump from the system. Lock the valves in the
closed position and tag them so that no one will attempt to open them.
Turn off, lock out, and tag all sub-systems and auxiliary equipment and auxiliary supply lines to isolate the pumping
unit from any and all power, energy, and/or fluids.
Do not attempt to perform any work on the unit until you are confident that the pump and its contents have been
stabilized at ambient temperature, and atmospheric pressure.
Put on protective wear to protect human tissue from attack by the fluids contained in the pump and any sub-systems,
and from any vapors or fumes that could possibly be released from these fluids. This could mean breathing apparatus,
face shields, heavy long sleeve rubber gloves, rubber apron, hood, and possibly more, dependent of course on the
properties of the fluids involved and the installed drain and vent piping arrangement. Personal injury and/or death
can occur if adequate precautions are not taken with regard to the fluid, the installation, and the possibilities of the
release of fluid, vapors, and/or fumes.
Remove the coupling guard. Remove the coupling spacer.
Drain all the fluids from the auxiliary sub-systems (lubrication, cooling, heating, seal barrier, etc.) that are connected to the pump. Drain each fluid into a separate container. Use caution required for each fluid after reading the
MSDS (Material Safety Data Sheet) for each.
Flush each sub-system with a compatible, non-toxic, non-hazardous, stable liquid. Drain into individual containers
for each fluid. Disconnect and remove all auxiliary piping.
Carefully bleed off any pressure remaining in the pump. Pressure remaining in the pump will be dependent upon
the pressure in the system when the pump was stopped; the quality, type, and condition of the isolation valves; the
thermal expansion valves of the fluid and the pump material; and the change in the vapor pressure of the fluid
between the temperature at the time the isolation valves were closed and the ambient temperature. Bleeding must
be through a valved drain line piped to a closed container mounted lower than the pump. The container must be
arranged with a relief passage to some point where pressure and fumes will not be harmful to personnel. The
container must also have a level device so that determination can be made that sufficient fluid has been drained to
empty the pump cavity and the volume of fluid that was contained in the run of suction and discharge pipe
between the isolation valves and the pump. After the initial rush of fluid from the pump relieves the pressure, the
drain valve can be opened further to speed the draining operation. When fluid quits running into the drain tank,
gauge the volume to see if it is sufficient to have fully drained the contents of the pump and the suction and discharge pipes between the isolation valves.
If the system was constructed without any drain connections, it will be necessary to consult the designers of the system
for safe draining procedures.
Now drain any small piping, that contains the fluid pumped, from all low points, into the same container used to
drain the pump. Do not drain any other fluids (different than the pumpage) into this container as they may not be
compatible. Personal injury, death, and/or equipment damage could occur.
Even though it might appear that, the cavity being drained has completely drained, be extremely careful about
opening the system and/or opening the pump. If something solid in the pumpage moves to the vicinity of the drain
connection, it could seal-off the drain and maintain pressure in the cavity thought to have been drained. It is also
possible that the isolation valves are not sealing and therefore allowing liquid to flow from the system into the pump.
Personal injury, death, and/or equipment damage may occur if intense caution is not exercised.
Because of the above possibility, when you loosen the gasketed joint at the back of the casing (5), loosen the bolts or
nuts only one full turn, and then use jack screws to break the gasket seal. If fluid and/or pressure remains in the pump,
it will spray out now. Use extreme caution, wearing protective gear, to avoid injury. Do not proceed with disassembly until leakage ceases completely. If leakage does not cease, the isolation valves may not be sealing. Note that if
the pump was purchased with out a drain, the pump will contain fluid which will flow out at the time the bolts are
loosened and the gasket seal is broken.
When you open the pump, the fluid will be exposed to the atmosphere and personnel in the area. For the safety of
all involved, the risk of exposure can be reduced by flushing the cavity that was just drained, with a compatible
non-toxic, non-hazardous, stable liquid, before disassembling the pump.
Remove the casing bolts or nuts and using mechanical lifting apparatus to support the weight, pull the rotating unit
from the casing.
Flush the wetted parts now exposed with compatible, non-toxic, non-hazardous, stable liquid.
Remove the gasket from the face of the casing (5) or the bearing housing (26) dependent on which one the gasket
may have adhered to. The type of gasket and material of construction will vary with service requirements. Attack by
prying and then, if necessary, layering off the old gasket with a sharp scraper, attempting to remove it in the largest
possible pieces. Wear heavy leather, long sleeve work gloves when using the scraper. Wet the gasket before and
during the scraping operation to reduce the possibility of fibers becoming airborne. Wear a respirator during this
operation and until all debris has been disposed of in a plastic bag. Remove all of the gasket material down to clean
metal surfaces on both parts that contacted the gasket. Place all of the gasket residue in a plastic bag, seal the bag
and dispose of it in compliance with all government requirements.
The rotating assembly of the pump can now be moved to a more convenient location for further disassembly. Use
only high quality tools. Flush parts as disassembled to removed hazardous residue from the pumpage and/or
sub-system fluids.
Wear protective equipment as advised at the beginning of these warnings.
Use mechanical lifting equipment to lift assemblies and components.
Do not apply heat to parts to assist in disassembly. Explosion could occur causing personal injury, death, and/or
damage to equipment.
Do not attempt to drill, saw, or otherwise cut parts to remove them. Explosion and/or fuming could occur causing
personal injury, death, and/or equipment damage.
Do not hammer on any parts. Personal injury and/or damage to equipment may occur.
When it is necessary to open the pump and/or the pumping system, the fluid will be exposed to the atmosphere
and personnel in the area. For the safety of all involved, the risk of exposure of personnel to the hazards of the
pumpage can be reduced by flushing the entire system with a compatible non-toxic, non-hazardous,stable liquid
before opening the pump or the system. In all cases, where the system is flushed or not, use the utmost care around
the pumpage and the pumping system.
Do not attempt to manufacture parts or modify Dean Pump parts in any manner. Death, personal injury, and/or
damage to equipment may occur.
Always wear the appropriate protective apparel when working on or around the pumping equipment. Safety
glasses with side shields, heavy work gloves (use insulated work gloves when handling hot items), steel-toed shoes,
hard hat, and any other protective gear as needed for protection. One example of other gear would be breathing
apparatus when working near toxic materials.
Replace all gaskets, seals, bearings, and lubricants. Replace all parts that have worn, corroded, eroded, or otherwise deteriorated.
One example of the above would be overboring the seal chamber, which removes metal that is required to contain fluids. Removal of this metal reduces the pressure containing capability of the part, and may create a leak path
through the part.
Use only Dean Pump Division of Met-Pro Corporation parts.
Use only top quality tools.
©COPYRIGHT 2012 MET-PRO CORPORATION, DEAN PUMP
DEAN PUMP ® IS A REGISTERED TRADEMARK OF MET-PRO CORPORATION.
09-5924 512

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