BRONZE CENTRIFUGAL PUMPS MODEL 82PB

BRONZE CENTRIFUGAL PUMPS MODEL 82PB
MODEL
82PB
BRONZE
CENTRIFUGAL PUMPS
Capacity - Water at 60o F
PIPE SIZE: 1 1/2” INLET, 1 1/4” OUTLET
Pump No.
82PB
HP at 3450 RPM
2
Material
Bronze
FEATURES
• All Bronze or Lightweight Corrosion Resistant
Aluminum
• Mechanical Face Type Seal
• Viton(R)* (S10) or Teflon(R)* (S11) Seals Available
on Special Order
• Heavy Duty Ball Bearings - Designed for Pulley
Drive Applications
• Stainless Steel Shaft
• Field Convertible to Close Coupled Unit Using
Standard Keyed Shaft “C” Flange Motor
• May Be Operated with the Shaft Horizontal or Vertical
ROTATION
Because of the centrifugal pump impeller and body
design, rotation must be as shown in the dimension diagram
(see back). Standard factory rotation is clockwise facing the
pump shaft. If the pump is driven in the opposite direction it
will pump only a very small amount.
RELIEF VALVE
Since centrifugal pumps are not positive displacement
pumps, relief valves are not necessary to protect against high
pressure build-up.
SUCTION LIFT
Regular centrifugal pumps have no self-priming capability and must be mounted below the liquid source (flooded
suction). Self-priming centrifugal pumps must be primed once
at the initial start-up thru the priming plug opening at the top
of the pump body. On subsequent starts the pump will automatically prime itself and develop lifting capability of 15 feet
or more.
The height of the suction lift should be kept to an absolute minimum and the size of the suction pipe should be equal or larger than
the pump inlet port. A foot valve with strainer is recommended a the
beginning of the suction line. Self-priming centrifugals must be operated with the shaft in the horizontal position, regular centrifugals may
be operated with the shaft horizontal or vertical.
LIQUIDS
Because centrifugal pumps are more efficient at higher shaft
speeds, pumping of viscous or thick liquids is difficult. It is possible
to lose as much as 40% pump performance when attempting to
pump liquids of viscosity equal to S.A.E. 30 oil at room temperature.
S.A.E. 30 oil at room temperature has a viscosity of 2000 Saybolt
Seconds Universal. More viscous liquids are not recommended for
centrifugal pumps
Heavy liquids can be pumped; however, they demand more
horsepower in direct ratio to the weight of water. For example, carbon tetrachloride has a specific gravity of 1.6 which means it is 1.6
times heavier than water and horsepower required is 1.6 times water
horsepower.
Bronze pumps are suitable for most common liquids in the PHrange from 4 to 11. The temperature limit for bronze pumps is 212oF,
higher temperatures are possible with Viton(R)* or Teflon(R)* seals.
*Viton(R) is a registerd trademark of DuPont Dow Elastomers. Viton(R) or equivalent FKM will be used.
Teflon(R) is a registered trademark of DuPont. Teflon(R) or equivalent PTFE will be used.
www.oberdorfer-pumps.com
PHONE (800) 448-1668; (315) 437-0361
FAX (315) 463-9561
MODEL
82PB
BRONZE
CENTRIFUGAL PUMPS
1
2
3
4
51
61
72
82
92
101
11
Pump
Pipe
Body
Screw
Lock-
Impeller
Seal
Seal
Seal
Seal
Gasket
Screws
No.
Plug
Seat
Wearface
Head
1 Req'd
1 Req'd
1 Req'd
washer
4 Req'd 1 Req'd 1 Req'd 1 Req'd
1
82PB 5395
7585
7656
7395
These parts are included in the Repair Kit.
Assembly Assembly
1 Req'd
1 Req'd
32352
32346
2
1 Req'd
12
12 Req'd 1 Req'd
7427
7426
5377
7425
5411
Seal parts sold only as seal assembly - item 6.
13
14
15
16
17
18
Ball
Retaining
Key
Shaft
Key
Ring
Bearing
Ring
2 Req'd
2 Req'd
2 Req'd
6053
5884
5885
Adapter Retaining
7586
19
20
Bearing Slinger
Repair
Plate
Kit
1 Req'd 1 Req'd 1 Req'd 1 Req'd 1 Req'd
7428
7455
6845
7587
7447
10952
DIMENSIONS
INSTRUCTIONS FOR CONVERTING FROM PEDESTAL MOUNT
TO CLOSE COUPLED MOTOR VERSION (from 82PB to 820B, etc.)
To accomplish change-over, Conversion Kit No. 10963 is required.
PROCEED STEP-BY-STEP AS FOLLOWS:
1) Unscrew eight cap screws (11) and remove pump body (2).
2) With a 7/16 socket wrench, unscrew one cap screw (3)
from shaft and remove impeller (5) and lockwasher (4).
Also remove key (16).
3) Using two screwdrivers, pull ceramic face (8) with rubber
seat ring (7) away from seal head (9) and remove them
from shaft.
4) Unscrew four cap screws (11) and remove adapter (12)
from motor (23) - or from bearing plate (19) on pedestal
pumps.
ASSEMBLE PUMP TO MOTOR STEP-BY-STEP AS
FOLLOWS:
1) Insert key (18) into pump shaft (21) and slide pump shaft
(21) onto motor shaft as far as it will go.
2) Slide collar (24) -with a 3/8 long set screw-onto pump shaft
so that set screw will line up with 1/4” hole in shaft. Tighten
set screw onto motor shaft. Slide collar (22) onto pump
shaft. Tighten set screw firmly against top of key (18).
3) Press seal head (9) into adapter casting (12) using a
3/06
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sealer such as Permatex between outside diameter of seal
head and casting bore. When shipped from factory, the seal
head is usually pressed in place already.
4) Mount adapter casting (12) to motor using four cap screws
(11).
5) Squirt a drop of oil on lapped surface of ceramic wear face
(8) and slide wear face over pump shaft (21) against
carbon ring of seal head (9).
6) Apply some oil to pump shaft (21) and slide rubber seat
ring (7) into counterbore of ceramic wear face (8). Be
careful that the rubber ring is not being cut by the edges of
the keyslot.
7) Insert key (16) into pump shaft.
8) Slide impeller (5) onto shaft and secure with lockwasher (4)
and cap screw (3). A 7/16 socket wrench is required for this
operation.
9) Place gasket (10) on adapter flange and assemble
pump body (2) using eight cap screws (11).
10) If a three-phase motor is used, make sure that during
the electrical hook-up the motor rotation corresponds
with the proper pump rotation. Refer to rotation arrow
on pump body. Single phase motors are permanently
wired for proper rotation.
Specifications are subject to change without notice.
PHONE (800) 448-1668; (315) 437-0361
FAX (315) 463-9561
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