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USACE / NAVFAC / AFCEC / NASA
UFGS-33 52 43.23 (February 2010)
-------------------------------Preparing Activity: USACE
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2016
**************************************************************************
SECTION TABLE OF CONTENTS
DIVISION 33 - UTILITIES
SECTION 33 52 43.23
AVIATION FUEL PUMPS
02/10
PART 1
1.1
1.2
1.3
PART 2
GENERAL
REFERENCES
ADMINISTRATIVE REQUIREMENTS
SUBMITTALS
PRODUCTS
2.1
FUELING PUMPS (FP-1 through FP-5)
2.1.1
Capacity
2.1.2
General Requirements
2.1.3
Service Nameplate
2.1.4
Identification Nameplate
2.1.5
Exterior Primer Coat
2.1.6
Exterior Topcoat
2.1.7
Motors
2.2
FUELING PUMP (VERTICAL TURBINE) (FP)
2.2.1
Capacity
2.2.2
Assembly
2.2.3
Materials
2.2.3.1
Mechanical Seal
2.2.4
Construction
2.2.4.1
Couplings
2.2.4.2
Impeller
2.2.4.3
Wear Rings
2.2.4.4
Shaft
2.2.4.5
Finishing
2.2.4.6
Bearings
2.2.4.7
Drilling and Tapping
2.2.4.8
Mounting Flange
2.2.4.9
Pump Discharge
2.2.4.10
Special Tools
2.2.4.11
Service Nameplate
2.2.4.12
Identification Nameplate
2.2.4.13
Primer Coat
2.2.4.14
Topcoat
2.2.5
Motor
SECTION 33 52 43.23
Page 1
2.3
OFFLOAD PUMPS
2.3.1
Capacity
2.3.2
General Requirements
2.3.3
Service Nameplate
2.3.4
Identification Nameplate
2.3.5
Exterior Primer Coat
2.3.6
Exterior Topcoat
2.3.7
Motors
2.4
FUEL TRANSFER PUMP (FTP-1) AND WATER DRAW-OFF PUMP (WSP-1 AND WSP-2)
2.4.1
Capacity
2.4.2
Assembly
2.4.3
Materials
2.4.3.1
Mechanical Seal
2.4.4
Construction
2.4.4.1
Couplings
2.4.4.2
Impeller
2.4.4.3
Wear Rings
2.4.4.4
Shaft
2.4.4.5
Finishing
2.4.4.6
Bearings
2.4.4.7
Drilling and Tapping
2.4.4.8
Mounting Flange
2.4.4.9
Special Tools
2.4.4.10
Service Nameplate
2.4.4.11
Identification Nameplate
2.4.4.12
Exterior Primer Coat
2.4.4.13
Exterior Topcoat
2.4.5
Motor
PART 3
EXECUTION
3.1
PREPARATION FOR SHIPMENT
3.1.1
Rust Preventative
3.1.2
Closure of Openings
3.1.3
Assembly
3.1.4
Bracing
3.1.5
Vapor Inhibiting Wraps
3.1.6
Shipping Identification
3.2
INSTALLATION
3.2.1
Anchoring
3.2.2
Grouting
3.2.3
Leveling and Aligning
3.2.4
Direct Drives
3.2.4.1
Rotation Direction and Speed
3.2.4.2
End Play
3.2.4.3
Shaft Leveling and Radial Alignment
3.2.4.4
Angular Alignment and End Clearance
3.2.4.5
Final Recheck
3.2.5
Start-up Representative
-- End of Section Table of Contents --
SECTION 33 52 43.23
Page 2
**************************************************************************
USACE / NAVFAC / AFCEC / NASA
UFGS-33 52 43.23 (February 2010)
-------------------------------Preparing Activity: USACE
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2016
**************************************************************************
SECTION 33 52 43.23
AVIATION FUEL PUMPS
02/10
**************************************************************************
NOTE: This guide specification covers the
requirements for refueling pumps used in aircraft
refueling systems constructed to the requirements of
the DoD Type III/IV/V, and Cut'n Cover Hydrant
Refueling System Standards
Adhere to UFC 1-300-02 Unified Facilities Guide
Specifications (UFGS) Format Standard when editing
this guide specification or preparing new project
specification sections. Edit this guide
specification for project specific requirements by
adding, deleting, or revising text. For bracketed
items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in
respective project, whether or not brackets are
present.
Comments, suggestions and recommended changes for
this guide specification are welcome and should be
submitted as a Criteria Change Request (CCR).
**************************************************************************
PART 1
GENERAL
**************************************************************************
NOTE: DoD Type III systems shall conform to
Standard Design 078-24-28 PRESSURIZED HYDRANT
FUELING SYSTEM (TYPE III). DoD Type IV/V systems
shall conform to Standard Design 078-24-29 AIRCRAFT
DIRECT FUELING SYSTEM (TYPE IV) DESIGN.
**************************************************************************
1.1
REFERENCES
**************************************************************************
NOTE: This paragraph is used to list the
publications cited in the text of the guide
specification. The publications are referred to in
the text by basic designation only and listed in
SECTION 33 52 43.23
Page 3
this paragraph by organization, designation, date,
and title.
Use the Reference Wizard's Check Reference feature
when you add a RID outside of the Section's
Reference Article to automatically place the
reference in the Reference Article. Also use the
Reference Wizard's Check Reference feature to update
the issue dates.
References not used in the text will automatically
be deleted from this section of the project
specification when you choose to reconcile
references in the publish print process.
**************************************************************************
The publications listed below form a part of this specification to the
extent referenced. The publications are referred to in the text by basic
designation only.
AMERICAN BEARING MANUFACTURERS ASSOCIATION (ABMA)
ABMA 7
(1995; Stabilized (S) 2013) Shaft and
Housing Fits for Metric Radial Ball and
Roller Bearings (Except Tapered Roller
Bearings) Conforming to Basic Boundary Plan
AMERICAN PETROLEUM INSTITUTE (API)
API STD 682
(2014) Pumps Shaft Sealing Systems For
Centrifugal and Rotary Pumps
API Std 610
(2010; Errata 2011) Centrifugal Pumps for
Petroleum, Petrochemical, and Natural Gas
Industries
ASME INTERNATIONAL (ASME)
ASME B16.5
(2013) Pipe Flanges and Flanged Fittings:
NPS 1/2 Through NPS 24 Metric/Inch Standard
ASME BPVC SEC IX
(2010) BPVC Section IX-Welding and Brazing
Qualifications
ASME BPVC SEC VIII D1
(2010) BPVC Section VIII-Rules for
Construction of Pressure Vessels Division 1
ASTM INTERNATIONAL (ASTM)
ASTM A182/A182M
(2015) Standard Specification for Forged
or Rolled Alloy-Steel Pipe Flanges, Forged
Fittings, and Valves and Parts for
High-Temperature Service
ASTM A276/A276M
(2015) Standard Specification for
Stainless Steel Bars and Shapes
ASTM A356/A356M
(2011) Standard Specification for Steel
Castings, Carbon, Low Alloy, and Stainless
SECTION 33 52 43.23
Page 4
Steel, Heavy-Walled for Steam Turbines
ASTM A487/A487M
(2014) Standard Specification for Steel
Castings Suitable for Pressure Service
ASTM A582/A582M
(2012; E 2012) Standard Specification for
Free-Machining Stainless Steel Bars
ASTM A743/A743M
(2013a; E 2014) Standard Specification for
Castings, Iron-Chromium,
Iron-Chromium-Nickel, Corrosion Resistant,
for General Application
ASTM C827/C827M
(2010) Change in Height at Early Ages of
Cylindrical Specimens from Cementitious
Mixtures
HYDRAULIC INSTITUTE (HI)
HI M100
(2009) HI Pump Standards Set
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)
IEEE 112
(2004) Standard Test Procedure for
Polyphase Induction Motors and Generators
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
NEMA MG 1
(2014) Motors and Generators
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 70
(2014; AMD 1 2013; Errata 1 2013; AMD 2
2013; Errata 2 2013; AMD 3 2014; Errata
3-4 2014; AMD 4-6 2014) National
Electrical Code
SOCIETY FOR PROTECTIVE COATINGS (SSPC)
SSPC PA 1
(2000; E 2004) Shop, Field, and
Maintenance Painting of Steel
SSPC SP 10/NACE No. 2
(2007) Near-White Blast Cleaning
U.S. DEPARTMENT OF DEFENSE (DOD)
MIL-DTL-24441
(2009; Rev D) Paint, Epoxy-Polyamide,
General Specification for
MIL-PRF-4556
(1998; Rev F; Am 1 1999; CANC Notice 1
2011) Coating Kit, Epoxy, for Interior of
Steel Fuel Tanks
1.2
ADMINISTRATIVE REQUIREMENTS
**************************************************************************
NOTE: Add number of days below. For COE Projects,
include in MOU specific AIR FORCE REPRESENTATIVES to
be notified when factory test dates are submitted by
SECTION 33 52 43.23
Page 5
Management System (RMS) are: "AE" for
Architect-Engineer; "DO" for District Office
(Engineering Division or other organization in the
District Office); "AO" for Area Office; "RO" for
Resident Office; and "PO" for Project Office. Codes
following the "G" typically are not used for Navy,
Air Force, and NASA projects.
An "S" following a submittal item indicates that the
submittal is required for the Sustainability
Notebook to fulfill federally mandated sustainable
requirements in accordance with Section 01 33 29
SUSTAINABILITY REPORTING.
Choose the first bracketed item for Navy, Air Force
and NASA projects, or choose the second bracketed
item for Army projects.
**************************************************************************
Government approval is required for submittals with a "G" designation;
submittals not having a "G" designation are for [Contractor Quality Control
approval.] [information only. When used, a designation following the "G"
designation identifies the office that will review the submittal for the
Government.] Submittals with an "S" are for inclusion in the
Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY
REPORTING. Submit the following in accordance with Section 01 33 00
SUBMITTAL PROCEDURES:
SD-02 Shop Drawings
Fueling Pumps (FP-1 through FP-5); G[, [_____]].
Offload Pumps; G[, [_____]].
Fuel Transfer Pump; G[, [_____]].
Water Draw-Off Pump; G[, [_____]].
SD-03 Product Data
Fueling Pumps (FP-1 through FP-5); G[, [_____]].
Offload Pumps; G[, [_____]].
Fuel Transfer Pump; G[, [_____]].
Water Draw-off Pump; G[, [_____]].
SD-06 Test Reports
Certified Test Curves
SD-07 Certificates
Fueling Pumps (FP-1 through FP-5); G[, [_____]].
Offload Pumps; G[, [_____]].
Fuel Transfer Pump; G[, [_____]].
SECTION 33 52 43.23
Page 7
Management System (RMS) are: "AE" for
Architect-Engineer; "DO" for District Office
(Engineering Division or other organization in the
District Office); "AO" for Area Office; "RO" for
Resident Office; and "PO" for Project Office. Codes
following the "G" typically are not used for Navy,
Air Force, and NASA projects.
An "S" following a submittal item indicates that the
submittal is required for the Sustainability
Notebook to fulfill federally mandated sustainable
requirements in accordance with Section 01 33 29
SUSTAINABILITY REPORTING.
Choose the first bracketed item for Navy, Air Force
and NASA projects, or choose the second bracketed
item for Army projects.
**************************************************************************
Government approval is required for submittals with a "G" designation;
submittals not having a "G" designation are for [Contractor Quality Control
approval.] [information only. When used, a designation following the "G"
designation identifies the office that will review the submittal for the
Government.] Submittals with an "S" are for inclusion in the
Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY
REPORTING. Submit the following in accordance with Section 01 33 00
SUBMITTAL PROCEDURES:
SD-02 Shop Drawings
Fueling Pumps (FP-1 through FP-5); G[, [_____]].
Offload Pumps; G[, [_____]].
Fuel Transfer Pump; G[, [_____]].
Water Draw-Off Pump; G[, [_____]].
SD-03 Product Data
Fueling Pumps (FP-1 through FP-5); G[, [_____]].
Offload Pumps; G[, [_____]].
Fuel Transfer Pump; G[, [_____]].
Water Draw-off Pump; G[, [_____]].
SD-06 Test Reports
Certified Test Curves
SD-07 Certificates
Fueling Pumps (FP-1 through FP-5); G[, [_____]].
Offload Pumps; G[, [_____]].
Fuel Transfer Pump; G[, [_____]].
SECTION 33 52 43.23
Page 7
Water Draw-off Pump; G[, [_____]].
SD-10 Operation and Maintenance Data
Operation and Maintenance Manuals; G[, [_____]].
PART 2
2.1
2.1.1
PRODUCTS
FUELING PUMPS (FP-1 through FP-5)
Capacity
**************************************************************************
NOTE: Insert site specific pump requirements.
**************************************************************************
Capacity shall be 45 L/s 600 gpm against a total head of [_____] m feet
when driven at 3600 rpm. Overall efficiency at design conditions of pump
and driver, connected, shall be minimum of [_____] percent. Pump head
capacity shall be continually rising and shall be free of dips and valleys
from design point to shut-off head. Pump shut-off head shall have a 10 to
20 percent head rise to shut off. Pump shall be capable of at least a 10
percent head increase at rated conditions by installing a new impeller.
Pumps shall not overheat or be damaged in any way while operating
continuously at a minimum flow condition of 11 L/s 150 gpm and continuously
at a maximum flow condition of 125 percent required capacity. The unit
will also be required to operate at a flow of 12.5 percent required
capacity GPM without exceeding the vibration limits given in API Std 610 at
that flowrate. These pumps are for parallel operation and shall have equal
head at minimum continuous stable flow, plus or minus 2 percent.
2.1.2
General Requirements
a.
The pumps shall meet the requirements of API Std 610, latest edition.
Whenever the information contained herein conflicts with said standard,
the information herein shall govern. The pumps shall run at a nominal
3600 rpm and shall be single stage centrifugals, horizontally mounted,
vertical or radial split case, enclosed impeller, with end suction and
top vertical discharge. Pumps shall be of the back pull-out design to
permit removing case half from rear for access to internal parts
without disturbing the suction or discharge piping or the driver. All
parts shall be factory inspected so that parts are interchangeable.
Pumps and motors shall be furnished as complete units as herein
specified. Pump assembly shall be statically and dynamically balanced
for all flow rates from minimum flow to 120 percent of design flow.
b.
The pump shall require no more than 4.6 m 15-feet of net positive
suction head (NPSHR) when it is operated with water at a capacity of 45
L/s 600 gpm at rated head and speed. A hydrocarbon reduction or
correction factor shall not be used. Pump suction specific speed shall
be less than 12,000.
c.
The pump shall be horizontal, single stage, single suction with double
volute construction to assure radial balance. It shall be designed to
permit removal of the impeller, shaft, bearings and bearing housing as
an assembly, without disconnecting the suction or discharge piping.
d.
The pump case shall be end suction, centerline discharge type for ease
SECTION 33 52 43.23
Page 8
of piping alignment. Flange ratings shall be class 105 kg 300-pound
per ASME B16.5. The case shall be designed for maximum discharge
pressure at pumping temperature but not less than 3.8 MPa 550 psig,
with a minimum corrosion allowance of 3 mm 1/8-inch. The suction and
discharge flanges as well as the cover bolting surfaces shall be
backfaced or spotfaced for positive bolt seating. The radial case to
cover split shall be a metal-to-metal fit with a confined, controlled
compression gasket.
e.
The pump cover shall contain a stuffing box designed to accept an
unbalanced mechanical seal. The stuffing box shall have a minimum of
75 mm 3-inch studs for seal gland bolting. The gasket fit for seal
gland to stuffing box shall be of the controlled compression type with
metal-to-metal joint contact.
f.
Both case and cover are to be fitted with renewable wear rings.
g.
The impeller shall be of the enclosed type, dynamically and
hydraulically balanced. It shall be key driven, held in place by a
positive lock, threaded against rotation. The running clearance
between the impeller and case-cover wear rings shall be no less than
1.4 mm 0.018-inches.
h.
Mechanical Seal: A single unbalanced mechanical seal per API Std 610
code USTHN, unbalanced single seal with throttle bushing seal gland, a
nitrile seal-ring-to-sleeve gasket and carbon against silicon carbide
faces, of multiple spring design shall be supplied. The seal gland
shall be tapped for three connections and each shall be stamped for
identification as follows: Q for quench; F for flush; and D for
drain. A non-sparking throttle bushing pressed into the seal end plate
against an outside shoulder shall be provided to minimize leakage on
complete seal failure.
i.
Bearing Housing: Oil lubricated anti-friction, radial and thrust
bearings of standard design shall be supplied. The bearings shall be
selected to give a minimum L-10 rating life of 25,000 hours in
continuous operation. Bearings shall be retained on the shaft and
fitted into housings in accordance with ABMA 7. Locking of the ball
thrust bearing to the shaft shall be by series W tank type washer.
Minimum spacing between bearing centerlines shall be 162 mm 6.5-inches.
j.
A sight glass for checking oil level with a permanent indication of
proper oil level shall be supplied.
k.
Bearing housings shall be equipped with labyrinth type end seals and
deflectors where the shaft passes through the housing; lip-type seals
shall not be used. Deflectors shall be made of non-sparking material.
The deflector design shall effectively retain oil in the housing and
prevent entry of foreign material into the housing.
l.
Shafts shall be of ample size to transmit the maximum torque required
under specified operating conditions, and to withstand continuously all
stresses resulting from supported weights, thrusts and starting,
including across-the-line motor starting. It shall be key seated to
provide positive drive for the coupling, shaft sleeve and impeller.
The shaft stiffness factor shall be under 70. The radial bearing
centerline to impeller centerline, distance and the pump shaft
diameter under the sleeve shall be provided to calculate the factor.
SECTION 33 52 43.23
Page 9
m.
A spacer coupling shall be supplied. The spacer length shall permit
the removal of the assembled pullout element without disturbing the
driver or the suction and discharge piping. Couplings shall be
properly keyed in place. Cylindrical fits shall be light enough to
permit easy removal of the hub in the field without the need for
heating. A service factor of at least 1.5 shall be used in selecting
couplings based on manufacturer's ratings.
n.
Removable coupling guards of the non-sparking type shall be supplied.
They shall comply with the requirements of OSHA.
o.
Total indicated shaft runout at coupling end shall be 0.025 mm
0.001-inches or less. Total shaft deflection shall be no more than
0.050 mm 0.002-inches at face of stuffing box.
p.
Baseplate: The baseplate shall be of fabricated steel construction. It
shall be of the drain pan style, sloping from back to front.
Connections for a drain shall be tapped ( 25 mm1-inch minimum) at the
pump end and located to accomplish complete drainage. A grout hole of
at least 200 mm 8-inches minimum diameter shall be supplied and shall
have 13 mm 1/2-inch minimum raised lip edge. Pump pedestals shall be
trapezoidal in design.
q.
Materials: No zinc, brass, bronze or other copper bearing alloy shall
come in contact with the fuel. Materials shall be material class C-6,
unless otherwise noted.
r.
The case and cover shall be constructed of stainless steel
ASTM A487/A487M GR CF8M or ASTM A487/A487M GR CA6NM or aluminum
ASTM A356/A356M GR T6.
s.
Impeller material shall be stainless steel ASTM A487/A487M GR CF8M or
ASTM A743/A743M CA 6NM or CA 15.
t.
Wear rings shall be stainless steel ASTM A182/A182M GR F6 or
ASTM A276/A276M TP410 or 416.
u.
Shaft shall be stainless steel ASTM A276/A276M type 410 or 416 or
ASTM A582/A582M Type 410 or 416.
v.
Testing: All shop testing shall be performed in accordance with the
API Std 610.
2.1.3
Service Nameplate
A pump service nameplate, of type 18-8 stainless steel or monel, attached
by stainless steel pins at an accessible point on the pump, shall be
furnished in addition to the identification nameplate. The pump service
nameplate shall be stamped with the following information:
Manufacturer's name
Serial number of pump
Capacity, L/sgpm
Pumping head, mft.
Maximum specific gravity of fluid to be pumped
Revolutions per minute
Horsepower of driver
SECTION 33 52 43.23
Page 10
2.1.4
Identification Nameplate
A pump identification nameplate of Type 18-8 stainless steel or monel shall
be provided and securely attached by stainless steel pins to a conspicuous
place on the pump head. Tagging in letters 6 mm 1/4-inch high shall bear
the equipment number as shown on the drawings.
2.1.5
Exterior Primer Coat
Exterior surfaces of the baseplate shall be primed by the manufacturer.
Coating shall be applied meeting requirements of SSPC PA 1. Surface
cleaning shall meet requirements of SSPC SP 10/NACE No. 2. Metal primer
shall be zinc rich paint conforming to specification MIL-DTL-24441, Type 1,
Class 3. Dry film thickness shall be 0.05 to 0.10 mm 2 to 4 mils.
2.1.6
Exterior Topcoat
Manufacturer's standard exterior topcoat shall be applied at factory to the
base plate.
2.1.7
Motors
a.
Motor shall be furnished by the pump manufacturer and shall be
non-overloading with 10 percent head increase, and suitable for the
environment and operating conditions to which it will be subjected.
Motors for vertical turbine pumps shall be provided with anti-reversing
ratchet. Provide space heaters suitable for operation on 460 or 120
volts as indicated on the drawings within the motor enclosure to
prevent moisture condensation after shut-down. Motor shall be UL
listed for use in Class 1, Division 1, Group D hazardous areas, and
shall have a maximum temperature rating of T2D ( 218 degrees C 419
degrees F) as defined by NFPA 70. The motor nameplate shall include
the temperature rating of the motor and locked-rotor indicating code
letters in accordance with NFPA 70, Table 430-7(b).
b.
Voltage rating shall be 460 volts, 3 phase, 60HZ. Motor nominal speed
shall match pump. Motors shall be capable of delivering rated
horsepower output successfully and continuously under conditions of
voltage variations of 10 percent above or below rated voltage.
c.
Pump manufacturer shall assure the specified output and proper
operation of the pump without being overloaded at unity service factor
when operating at any point on the pump performance curve. In addition
to having sufficient horsepower-output rating at rated speed, motor
shall have performance characteristics which will allow, without
injurious overheating of the motor, accelerating the load from
standstill to rated speed under conditions of 10 starts per hour.
Attention is specifically directed to the fact that thermal
characteristics of motors with regard to capability for accelerating
the load may vary greatly from motor manufacturer to motor
manufacturer, notwithstanding that the horsepower rating may be the
same. It is the pump manufacturer's responsibility to provide motors
with adequate thermal starting characteristics as well as adequate
rated-speed operating characteristics. Service factors shall conform
with NEMA standards; however, service factors are only applicable at
rated nameplate voltage and frequency. Since all system voltages are
subject to variation, service factors above unity shall not be applied
in sizing motor.
SECTION 33 52 43.23
Page 11
d.
Motor shall be squirrel-cage induction type. Motor shall be NEMA
Design B (normal-torque, low starting current).
e.
Motor insulation shall be non-hydroscopic, NEMA Class H, 180 degrees C
82 degrees F for motors over 7.5 kW 10 hp and NEMA Class F, 150 degrees
C 302 degrees F for 7.5 kW 10 hp and smaller. Stator windings shall be
epoxy impregnated. The impregnations shall be applied by the vacuum
and pressure process.
f.
Winding temperature rise, (based on a maximum ambient temperature of 40
degrees C 4 degrees F at 1006 m 3300-feet altitude) shall not exceed 80
degrees C 176 degrees F.
g.
Bearings shall be ABMA minimum L10 life of 60,000 hours or L50 life of
300,000 hours suitable for the size, type, and application when the
pump is operating at the specified flow and head.
h.
Motor enclosures shall be totally enclosed, weather sealed, fan cooled,
explosion-proof and shall be listed and labeled for Class 1, Group D
areas. Provide bronze ground bolt on motor enclosure. All motor
external electrical connections shall be terminated within a single
terminal housing.
i.
The dynamic balance, overspeed withstand capability, and sound power
levels of the motor shall conform with NEMA standard requirements.
j.
The pump manufacturer shall furnish the Contracting Officer with the
recommended minimum run time for the motor.
k.
Pump motor shall be provided with temperature limiting thermostats
within the motor frame when required to meet Class 1, Group D
requirements.
l.
Pump motor shall be furnished with lifting lugs on the motor casing.
m.
Unless indicated otherwise, motors for conventional applications over
15 horsepower shall be the premiumy efficient type. This requirement
is not applicable to hermetically sealed motors, integrally mounted
motors, motors specified as part of energy efficient equipment, wound
rotor motors, or any application involving special construction or
performance. Guaranteed minimum full load efficiencies shall be (based
on 3600, 2 pole, totally enclosed):
n.
15 kW20 hp
92.0 percent
56 kW75 hp
95.5 percent
19 kW25 hp
92.0 percent
75 kW100 hp
93.5 percent
22 kW30 hp
92.0 percent
93 kW125 hp
94.5 percent
30 kW40 hp
92.0 percent
112 kW150 hp
94.5 percent
37 kW50 hp
92.5 percent
149 kW200 hp
94.5 percent
45 kW60 hp
92.5 percent
447 kW600 hp
94.5 percent
Other motors of different speed or housing classification shall also be
of the premium efficient type, as advertised by the motor manufacturer,
with efficiency greater than the standard line. Motor efficiencies
SECTION 33 52 43.23
Page 12
shall have been verified in accordance with NEMA MG 1, 12.53.a., and
determined using the dynamometer method as described in IEEE 112,
Method B. All shop drawing submittals on motor driven equipment shall
include the motor efficiency.
2.2
FUELING PUMP (VERTICAL TURBINE) (FP)
2.2.1
Capacity
**************************************************************************
NOTE: Insert site specific pump requirements.
**************************************************************************
Capacity shall be [45][68] L/s [600][900] gpm against a total head of
[_____] m feet for the Fueling Pump, when driven at 1800 rpm. Overall
efficiency at design conditions of pump and driver, connected, shall be
minimum [_____] percent. Pump head capacity shall be continually rising
and shall be free of dips and valleys from design point to shut-off head.
Pump shall be capable of at least 5 percent head increase at rated
conditions by installing a new impeller.
2.2.2
Assembly
The pump for this service shall meet the requirements of API Std 610,
latest edition, seventh edition for vibration. Wherever the information
contained herein conflicts with said standard, the information herein shall
govern. The pump for this service shall run at a nominal 1800 rpm and
shall be a multi-stage, vertical turbine pump. Pump and motor shall be
furnished as a complete unit as herein specified. Pump assembly shall be
statically and dynamically balanced for all flow rates from minimum flow to
120 percent of design flow. Flanged column, shaft, and bearing spacing
shall not exceed 1.5 m 5-foot sections to facilitate pump disassembly
within pump room.
2.2.3
Materials
The materials of construction for the pump shaft and the impeller shall be
stainless steel. All other materials shall be material class S-1 with the
wetted ferrous parts such as the bowl interiors enamel-lined, bowl
exteriors, column interior and exterior, discharge head interior
epoxy-coated per MIL-PRF-4556, and discharge head exterior epoxy-coated per
MIL-DTL-24441.
2.2.3.1
Mechanical Seal
API STD 682, balanced type, API Class Code BSTHN.
2.2.4
Construction
Castings used for any part of pumps shall be sound and free of shrink or
blow holes, scale, blisters, and other similar casting defects. The
surfaces of casting shall be cleaned by sand or shot blasting, pickling, or
other standard methods used by the manufacturer. All mold parting fins and
remains of gates and risers shall be either chipped, filed, or ground flush
with the surface of the casting. The repair of casting leaks and defects
by peening or by the use of cement compounds is prohibited. All welding to
be per ASME BPVC SEC IX.
SECTION 33 52 43.23
Page 13
selected to give a minimum L-10 rating life of 25,000 hours in
continuous operation. Pumps may be provided with or without bearing
brackets.
j.
Shafts shall be of ample size to transmit the maximum torque required
under specified operating conditions, and to withstand continuously all
stresses resulting from supported weights, thrusts and starting,
including across-the-line motor starting. It shall be key seated to
provide positive drive for the line motor starting. It shall be key
seated to provide positive drive for the coupling, shaft sleeve and
impeller. The shaft stiffness factor shall be under 70. The radial
bearing centerline to impeller centerline, distance and the pump shaft
diameter under the sleeve shall be provided to calculate the factor.
k.
A rigid type spacer coupling shall be supplied. The spacer length
shall permit the removal of the assembled pullout element without
disturbing the driver or the suction and discharge piping. Couplings
shall be properly keyed in place. Cylindrical fits shall be light
enough to permit easy removal of the hub in the field without the need
for heating. A service factor of at least 1.5 shall be used in
selecting couplings based on manufacturer's ratings.
l.
Removable coupling guards of the non-sparking type shall be supplied.
They shall comply with the requirements of OSHA.
m.
Total indicated shaft runout at coupling end shall be 0.025 mm
0.001-inches or less. Total shaft deflection shall be no more than
0.05 mm 0.002-inches at face of stuffing box.
n.
Materials. No zinc, brass, bronze or other copper bearing alloy shall
come in contact with the fuel.
o.
The case and cover shall be constructed of stainless steel
ASTM A487/A487M GR CF8M or ASTM A487/A487M GR CA6NM or aluminum
ASTM A356/A356M GR T6.
p.
Impeller material shall be stainless steel ASTM A487/A487M GR CF8M or
ASTM A743/A743M CA 6NM.
q.
Wear rings shall be stainless steel ASTM A182/A182M GR F6 or
ASTM A276/A276M TP410 or 416.
r.
Shaft shall be stainless steel ASTM A276/A276M type 410 or 416 or
ASTM A582/A582M Type 410 or 416 with renewable shaft sleeve of
ASTM A276/A276M type 316L with hard facing under mechanical seal gasket.
s.
Testing.
HI M100.
2.3.3
All shop testing shall be performed in accordance with the
Service Nameplate
A pump service nameplate, of type 18-8 stainless steel or monel, attached
by stainless steel pins at an accessible point on the pump, shall be
furnished in addition to the identification nameplate. The pump service
nameplate shall be stamped with the following information:
Manufacturer's name
Serial number of pump
Capacity, L/s gpm
SECTION 33 52 43.23
Page 19
Pumping head, m ft.
Maximum specific gravity of fluid to be pumped
Revolutions per minute
Horsepower of driver
2.3.4
Identification Nameplate
A pump identification nameplate of Type 18-8 stainless steel or monel shall
be provided and securely attached by stainless steel pins to a conspicuous
place on the pump head. Tagging in letters 6 mm 1/4-inch high shall bear
the equipment number as shown on the drawings.
2.3.5
Exterior Primer Coat
Exterior surfaces of the baseplate shall be primed by the manufacturer.
Coating shall be applied meeting requirements of SSPC PA 1. Surface
cleaning shall meet requirements of SSPC SP 10/NACE No. 2. Metal primer
shall be zinc rich paint conforming to specification MIL-DTL-24441, Type 1,
Class 3. Dry film thickness shall be 0.05 to 0.1 mm 2 to 4 mils.
2.3.6
Exterior Topcoat
Manufacturer's standard exterior topcoat shall be applied at factory to the
base plate.
2.3.7
Motors
a.
Motor shall be furnished by the pump manufacturer and shall be suitable
for the environment and operating conditions to which it will be
subjected. Provide space heaters suitable for operation on 460 or 120
volts as indicated on the drawings within the motor enclosure to
prevent moisture condensation after shut-down. Motor shall be UL
listed for use in Class 1, Division 1, Group D hazardous areas, and
shall have a maximum temperature rating of T2D ( 216 degrees C 419
degrees F) as defined by NFPA 70. The motor nameplate shall include
the temperature rating of the motor and locked-rotor indicating code
letters in accordance with NFPA 70, Table 430-7(b).
b.
Voltage rating shall be 460 volts, 3 phase, 60HZ. Motor nominal speed
shall match pump. Motors shall be capable of delivering rated
horsepower output successfully and continuously under conditions of
voltage variations of 10 percent above or below rated voltage.
c.
Pump manufacturer shall assure the specified output and proper
operation of the pump without being overloaded at unity service factor
when operating at any point on the pump performance curve. In addition
to having sufficient horsepower-output rating at rated speed, motor
shall have performance characteristics which will allow, without
injurious overheating of the motor, accelerating the load from
standstill to rated speed under conditions of 10 starts per hour.
Attention is specifically directed to the fact that thermal
characteristics of motors with regard to capability for accelerating
the load may vary greatly from motor manufacturer to motor
manufacturer, notwithstanding that the horsepower rating may be the
same. It is the pump manufacturer's responsibility to provide motors
with adequate thermal starting characteristics as well as adequate
rated-speed operating characteristics. Service factors shall conform
with NEMA standards; however, service factors are only applicable at
rated nameplate voltage and frequency. Since all system voltages are
SECTION 33 52 43.23
Page 20
1, Group D hazardous areas, and shall have a maximum temperature rating
of "T2D 216 degrees C 419 degrees F " as defined by NFPA 70. The
motor nameplate shall include the temperature rating of the motor and
locked-rotor indicating code letters in accordance with NFPA 70, Table
430-7(b).
b.
Voltage rating shall be 460 volts, 3 phase, 60HZ. Motor nominal speed
shall match pump. Motors shall be capable of delivering rated
horsepower output successfully and continuously under conditions of
voltage variations of 10 percent above or below rated voltage.
c.
Pump manufacturer shall assure the specified output and proper
operation of the pump without being overloaded at unity service factor
when operating at any point on the pump performance curve based on the
future potential of a 5 percent head increase. In addition to having
sufficient horsepower-output rating at rated speed, motor shall have
performance characteristics which will allow, without injurious
overheating of the motor, accelerating the load from standstill to
rated speed under conditions of 10 starts per hour. Attention is
specifically directed to the fact that thermal characteristics of
motors with regard to capability for accelerating the load may vary
greatly from motor manufacturer to motor manufacturer, notwithstanding
that the horsepower rating may be the same. It is the pump
manufacturer's responsibility to provide motors with adequate thermal
starting characteristics as well as adequate rated-speed operating
characteristics. Service factors shall conform with NEMA standards;
however, service factors are only applicable at rated nameplate voltage
and frequency. Since all system voltages are subject to variation,
service factors above unity shall not be applied in sizing motor.
d.
Motor shall be squirrel-cage induction type, high thrust vertical P
base, unless bearing frame pump is utilized. Motor shall be NEMA
Design B (normal-torque, low starting current).
e.
Motor insulation shall be non-hydroscopic, NEMA Class F, 150 degrees C
302 degrees F for motors. Motor windings shall be supplied with extra
dips and bakes.
f.
Winding temperature rise, (based on a maximum ambient temperature of 40
degrees C 104 degrees F at 1006 m 3300-feet altitude) shall not exceed
80 degrees C 176 degrees F.
g.
Bearings shall be ABMA minimum L10 life of 60,000 hours or L50 life of
300,000 hours suitable for the size, type, and application when the
pump is operating at the specified flow and head.
h.
Motor enclosures shall be totally enclosed, weather sealed, fan cooled,
explosion-proof and shall be listed and labeled for Class 1, Group D
areas. Provide bronze ground bolt on motor enclosure. All motor
external electrical connections shall be terminated within a single
terminal housing.
i.
The motors shall be dynamically balanced and vibration measured per
NEMA MG 1, vibration and balance under category "precision". Motor
overspeed withstand capability and sound power levels of the motor
shall conform with NEMA standard requirements.
j.
The pump manufacturer shall furnish the Contracting Officer with the
recommended minimum run time for the motor.
SECTION 33 52 43.23
Page 16
k.
Pump motor shall be provided with temperature limiting thermostats
within the motor frame when required to meet Class 1, Group D
requirements.
l.
Pump motor shall be furnished with lifting lugs on the motor casing.
m.
Unless indicated otherwise, motors for conventional applications over
15 horsepower shall be the premiumy efficient type. This requirement
is not applicable to hermetically sealed motors, integrally mounted
motors, motors specified as part of energy efficient equipment, wound
rotor motors, or any application involving special construction or
performance. Guaranteed minimum full load efficiencies shall be (based
on 1800 rpm, 4 pole, totally enclosed):
n.
2.3
2.3.1
15 kW20 hp
92.0 percent
56 kW75 hp
95.5 percent
19 kW25 hp
92.0 percent
75 kW100 hp
93.5 percent
22 kW30 hp
92.0 percent
93 kW125 hp
94.5 percent
30 kW40 hp
92.0 percent
112 kW150 hp
94.5 percent
37 kW50 hp
92.5 percent
149 kW200 hp
94.5 percent
45 kW60 hp
92.5 percent
447 kW600 hp
94.5 percent
Other motors of different speed or housing classification shall also be
of the premium efficient type, as advertised by the motor manufacturer,
with efficiency greater than the standard line. Motor efficiencies
shall have been verified in accordance with NEMA MG 1, 12.53.a., and
determined using the dynamometer method as described in IEEE 112,
Method B. All shop drawing submittals on motor driven equipment shall
include the motor efficiency.
OFFLOAD PUMPS
Capacity
**************************************************************************
NOTE: Insert site specific pump requirements. Pump
capacity to be provided by MAJCOM.
**************************************************************************
Capacity shall be [45] [23] L/s [600] [300] gpm against a total head of
[_____] m feet when driven at 3600 rpm. Overall efficiency at design
conditions of pump and driver, connected, shall be minimum of 60 percent.
Pump head capacity shall be continually rising and shall be free of dips
and valleys from design point to shut-off head. Pump shut-off head shall
have a 10 to 20 percent head rise to shut off. Pump shall be capable of at
least a 10 percent head increase at rated conditions by installing a new
impeller. Pumps shall not overheat or be damaged in any way while
operating continuously at a minimum flow condition of 11 L/s 150 gpm and
continuously at a maximum flow condition of 125 percent required capacity
L/s GPM. The unit will also be required to operate at a flow of 12.5
percent required capacity without exceeding the vibration limits given in
API Std 610. These pumps are for parallel operation and shall have equal
SECTION 33 52 43.23
Page 17
head at minimum continuous stable flow, plus or minus 2 percent.
2.3.2
General Requirements
a.
The pumps for this service shall meet the requirements of API Std 610,
latest edition. Whenever the information contained herein conflicts
with said standard, the information here in shall govern. The pumps
for this service shall run at a nominal 3600 rpm and shall be single
stage centrifugals, horizontally mounted, vertical or radial split
case, enclosed impeller, vertical-in-line with end suction and
discharge. All parts shall be factory inspected so that parts are
interchangeable. Pumps and motors shall be furnished as complete units
as herein specified. Pump assembly shall be statically and dynamically
balanced for all flow rates from no flow to 120 percent of design flow.
b.
The pump shall require no more than 4.7 m 15.5-feet of net positive
suction head (NPSHR) when it is operated with water at a capacity of
[45] [23] L/s [600] [300] gpm at rated head and speed. A hydrocarbon
reduction or correction factor shall not be used. Pump suction
specific speed shall be less than 12,000.
c.
The pump shall be vertical in-line, single stage, single suction with
double volute construction to assure radial balance. It shall be
designed to permit removal of the impeller, shaft, bearings and bearing
housing as an assembly, without disconnecting the suction or discharge
piping.
d.
The pump case shall be vertical in-line type for ease of piping
alignment. Flange ratings shall be class 100 kg 300-pound per
ASME B16.5. The case shall be designed for maximum discharge pressure
at pumping temperature but not less than 3.8 MPa 550 psig, with a
minimum corrosion allowance of 3mm 1/8-inch. The suction and discharge
flanges as well as the cover bolting surfaces shall be backfaced or
spotfaced for positive bolt seating. The radial case to cover split
shall be a metal-to-metal fit with a confined, controlled compression
gasket.
e.
The pump cover shall contain a stuffing box designed to accept an
unbalanced mechanical seal. The stuffing box shall have a minimum of
75 mm 3-inch studs for seal gland bolting. The gasket fit for seal
gland to stuffing box shall be of the controlled compression type with
metal-to-metal joint contact.
f.
Both case and cover are to be fitted with renewable wear rings.
g.
The impeller shall be of the enclosed type, dynamically and
hydraulically balanced. It shall be key driven, held in place by a
positive lock, threaded against rotation.
h.
Mechanical Seal. A single unbalanced mechanical seal per API Std 610
code USTHN of multiple spring design shall be supplied. The seal gland
shall be tapped for three connections and each shall be stamped for
identification as follows: Q for quench; F for flush; and D for
drain. A non-sparking throttle bushing pressed into the seal end plate
against an outside shoulder shall be provided to minimize leakage on
complete seal failure.
i.
Bearing Housing. Grease lubricated anti-friction, radial and thrust
bearings of standard design shall be supplied. The bearings shall be
SECTION 33 52 43.23
Page 18
selected to give a minimum L-10 rating life of 25,000 hours in
continuous operation. Pumps may be provided with or without bearing
brackets.
j.
Shafts shall be of ample size to transmit the maximum torque required
under specified operating conditions, and to withstand continuously all
stresses resulting from supported weights, thrusts and starting,
including across-the-line motor starting. It shall be key seated to
provide positive drive for the line motor starting. It shall be key
seated to provide positive drive for the coupling, shaft sleeve and
impeller. The shaft stiffness factor shall be under 70. The radial
bearing centerline to impeller centerline, distance and the pump shaft
diameter under the sleeve shall be provided to calculate the factor.
k.
A rigid type spacer coupling shall be supplied. The spacer length
shall permit the removal of the assembled pullout element without
disturbing the driver or the suction and discharge piping. Couplings
shall be properly keyed in place. Cylindrical fits shall be light
enough to permit easy removal of the hub in the field without the need
for heating. A service factor of at least 1.5 shall be used in
selecting couplings based on manufacturer's ratings.
l.
Removable coupling guards of the non-sparking type shall be supplied.
They shall comply with the requirements of OSHA.
m.
Total indicated shaft runout at coupling end shall be 0.025 mm
0.001-inches or less. Total shaft deflection shall be no more than
0.05 mm 0.002-inches at face of stuffing box.
n.
Materials. No zinc, brass, bronze or other copper bearing alloy shall
come in contact with the fuel.
o.
The case and cover shall be constructed of stainless steel
ASTM A487/A487M GR CF8M or ASTM A487/A487M GR CA6NM or aluminum
ASTM A356/A356M GR T6.
p.
Impeller material shall be stainless steel ASTM A487/A487M GR CF8M or
ASTM A743/A743M CA 6NM.
q.
Wear rings shall be stainless steel ASTM A182/A182M GR F6 or
ASTM A276/A276M TP410 or 416.
r.
Shaft shall be stainless steel ASTM A276/A276M type 410 or 416 or
ASTM A582/A582M Type 410 or 416 with renewable shaft sleeve of
ASTM A276/A276M type 316L with hard facing under mechanical seal gasket.
s.
Testing.
HI M100.
2.3.3
All shop testing shall be performed in accordance with the
Service Nameplate
A pump service nameplate, of type 18-8 stainless steel or monel, attached
by stainless steel pins at an accessible point on the pump, shall be
furnished in addition to the identification nameplate. The pump service
nameplate shall be stamped with the following information:
Manufacturer's name
Serial number of pump
Capacity, L/s gpm
SECTION 33 52 43.23
Page 19
Pumping head, m ft.
Maximum specific gravity of fluid to be pumped
Revolutions per minute
Horsepower of driver
2.3.4
Identification Nameplate
A pump identification nameplate of Type 18-8 stainless steel or monel shall
be provided and securely attached by stainless steel pins to a conspicuous
place on the pump head. Tagging in letters 6 mm 1/4-inch high shall bear
the equipment number as shown on the drawings.
2.3.5
Exterior Primer Coat
Exterior surfaces of the baseplate shall be primed by the manufacturer.
Coating shall be applied meeting requirements of SSPC PA 1. Surface
cleaning shall meet requirements of SSPC SP 10/NACE No. 2. Metal primer
shall be zinc rich paint conforming to specification MIL-DTL-24441, Type 1,
Class 3. Dry film thickness shall be 0.05 to 0.1 mm 2 to 4 mils.
2.3.6
Exterior Topcoat
Manufacturer's standard exterior topcoat shall be applied at factory to the
base plate.
2.3.7
Motors
a.
Motor shall be furnished by the pump manufacturer and shall be suitable
for the environment and operating conditions to which it will be
subjected. Provide space heaters suitable for operation on 460 or 120
volts as indicated on the drawings within the motor enclosure to
prevent moisture condensation after shut-down. Motor shall be UL
listed for use in Class 1, Division 1, Group D hazardous areas, and
shall have a maximum temperature rating of T2D ( 216 degrees C 419
degrees F) as defined by NFPA 70. The motor nameplate shall include
the temperature rating of the motor and locked-rotor indicating code
letters in accordance with NFPA 70, Table 430-7(b).
b.
Voltage rating shall be 460 volts, 3 phase, 60HZ. Motor nominal speed
shall match pump. Motors shall be capable of delivering rated
horsepower output successfully and continuously under conditions of
voltage variations of 10 percent above or below rated voltage.
c.
Pump manufacturer shall assure the specified output and proper
operation of the pump without being overloaded at unity service factor
when operating at any point on the pump performance curve. In addition
to having sufficient horsepower-output rating at rated speed, motor
shall have performance characteristics which will allow, without
injurious overheating of the motor, accelerating the load from
standstill to rated speed under conditions of 10 starts per hour.
Attention is specifically directed to the fact that thermal
characteristics of motors with regard to capability for accelerating
the load may vary greatly from motor manufacturer to motor
manufacturer, notwithstanding that the horsepower rating may be the
same. It is the pump manufacturer's responsibility to provide motors
with adequate thermal starting characteristics as well as adequate
rated-speed operating characteristics. Service factors shall conform
with NEMA standards; however, service factors are only applicable at
rated nameplate voltage and frequency. Since all system voltages are
SECTION 33 52 43.23
Page 20
subject to variation, service factors above unity shall not be applied
in sizing motor.
d.
Motor shall be squirrel-cage induction type. Motor shall be NEMA
Design B (normal-torque, low starting current).
e.
Motor insulation shall be non-hydroscopic, NEMA Class F, 150 degrees C
300 degrees F for motors. Stator windings shall be epoxy impregnated.
The impregnations shall be applied by the vacuum and pressure process.
f.
Winding temperature rise, (based on a maximum ambient temperature of 40
degrees C 104 degrees F at 1006 m 3300-feet altitude) shall not exceed
80 degrees C 176 degrees F.
g.
Bearings shall be ABMA minimum L10 life of 60,000 hours or L50 life of
300,000 hours suitable for the size, type, and application when the
pump is operating at the specified flow and head.
h.
Motor enclosures shall be totally enclosed, weather sealed, fan cooled,
explosion-proof and shall be listed and labeled for Class 1, Group D
areas. Provide bronze ground bolt on motor enclosure. All motor
external electrical connections shall be terminated within a single
terminal housing.
i.
The dynamic balance, overspeed withstand capability, and sound power
levels of the motor shall conform with NEMA standard requirements.
j.
The pump manufacturer shall furnish the Contracting Officer with the
recommended minimum run time for the motor.
k.
Pump motor shall be provided with temperature limiting thermostats
within the motor frame when required to meet Class 1, Group D
requirements.
l.
Pump motor shall be furnished with lifting lugs on the motor casing.
m.
Unless indicated otherwise, motors for conventional applications over
15 horsepower shall be the premium efficient type. This requirement is
not applicable to hermetically sealed motors, integrally mounted
motors, motors specified as part of energy efficient equipment, wound
rotor motors, or any application involving special construction or
performance. Guaranteed minimum full load efficiencies shall be (based
on 3600 rpm, 2 pole totally enclosed):
n.
15 kW20 hp
92.0 percent
56 kW75 hp
95.5 percent
19 kW25 hp
92.0 percent
75 kW100 hp
93.5 percent
22 kW30 hp
92.0 percent
93 kW125 hp
94.5 percent
30 kW40 hp
92.0 percent
112 kW150 hp
94.5 percent
37 kW50 hp
92.5 percent
149 kW200 hp
94.5 percent
45 kW60 hp
92.5 percent
373 kW500 hp
94.5 percent
Other motors of different speed or housing classification shall also be
of the premium efficient type, as advertised by the motor manufacturer,
SECTION 33 52 43.23
Page 21
with efficiency greater than the standard line. Motor efficiencies
shall have been verified in accordance with NEMA MG 1, 12.53.a., and
determined using the dynamometer method as described in IEEE 112,
Method B. All shop drawing submittals on motor driven equipment shall
include the motor efficiency.
2.4
FUEL TRANSFER PUMP (FTP-1) AND WATER DRAW-OFF PUMP (WSP-1 AND WSP-2)
2.4.1
Capacity
**************************************************************************
NOTE: Insert site specific pump requirements.
**************************************************************************
Capacity shall be 3.8 L/s 50 gpm against a total head of [_____] m feet for
the Fuel Transfer Pump, and 3.8 L/s 50 gpm against a total head of [_____] m
feet for the Water Draw-off Pump, when driven at 1800 rpm. Overall
efficiency at design conditions of pump and driver, connected, shall be
minimum [_____] percent. Pump head capacity shall be continually rising
and shall be free of dips and valleys from design point to shut-off head.
Pump shall be capable of at least 10 percent head increase at rated
conditions by installing a new impeller.
2.4.2
Assembly
**************************************************************************
NOTE: Select pump stage requirements.
**************************************************************************
The pump for this service shall meet the requirements of API Std 610,
latest edition, seventh edition for vibration. Wherever the information
contained herein conflicts with said standard, the information herein shall
govern. The pump for this service shall run at a nominal 1800 rpm and
shall be a [single stage] [multi-stage], vertical turbine pump. Pump and
motor shall be furnished as a complete unit as herein specified. Pump
assembly shall be statically and dynamically balanced for all flow rates
from minimum flow to 120 percent of design flow.
2.4.3
Materials
The materials of construction for the pump shaft and the impeller shall be
stainless steel. All other materials shall be material class S-1 with the
wetted ferrous parts such as the bowl interiors enamel-lined, bowl
exteriors, column interior and exterior, discharge head interior
epoxy-coated per MIL-PRF-4556, and discharge head exterior epoxy-coated per
MIL-DTL-24441.
2.4.3.1
Mechanical Seal
API STD 682, balanced type, API Class Code BSTHN.
2.4.4
Construction
Castings used for any part of pumps shall be sound and free of shrink or
blow holes, scale, blisters, and other similar casting defects. The
surfaces of casting shall be cleaned by sand or shot blasting, pickling, or
other standard methods used by the manufacturer. All mold parting fins and
remains of gates and risers shall be either chipped, filed, or ground flush
with the surface of the casting. The repair of casting leaks and defects
SECTION 33 52 43.23
Page 22
by peening or by the use of cement compounds is prohibited.by
ASME BPVC SEC VIII D1.
2.4.4.1
Couplings
Couplings shall be flanged, rigid spacer type, CPAT or equal. The
couplings shall be of the spacer-type with a spacer of sufficient length to
permit replacement of the mechanical seal assembly without removing the
motor. The pump half coupling shall be of such design that it can be
removed without the use of heat. Coupling halves shall fit tightly to the
shafts of the pump and the driver so as not to become loose during
operation. The coupling shall be provided with an OSHA approved coupling
guard.
2.4.4.2
Impeller
Impeller shall be keyed to the shaft for radial loads and fixed in the
axial position by shaft sleeve nuts, or other positive positioning device.
Impellers shall be held to the shaft so that the impeller will not become
loose should the pump accidentally rotate in reverse direction. The
impeller shall be statically and dynamically balanced.
2.4.4.3
Wear Rings
Renewable wearing rings shall be positively locked on the impeller.
Wearing rings shall fit with close tolerances so as to permit a minimum of
recirculation. Positive locking case wearing rings shall be provided so
that the case wearing rings will not rotate or change position in the case.
2.4.4.4
Shaft
Shaft shall be designed with a high safety factor to easily withstand the
torsional loads and other stresses to which it may be subjected. It shall
be so designed that there will be no detrimental vibration stresses.
Surfaces shall be ground to accurate dimensions. Shaft deflection shall be
limited to 0.05 0.0020-inch maximum when measured at the face of the
mechanical seal under the operating condition of zero flow at shut off
head. Shaft shall be protected through the mechanical seal by means of a
shaft sleeve. Seal piping from the discharge to the mechanical seal shall
be provided.
2.4.4.5
Finishing
Passageways and impellers shall be finished to permit maximum efficiency
and provide noise reduction. Overall sound levels shall not exceed OSHA
limits.
2.4.4.6
Bearings
Bearings shall be product-lubricated. Sleeve type, carbon graphite shall
be provided. Bearing spacing shall be per API Std 610.
2.4.4.7
Drilling and Tapping
Casting shall be drilled and tapped for drain and seal recirculation
lines. All connections shall be provided with plugs.
SECTION 33 52 43.23
Page 23
2.4.4.8
Mounting Flange
Mounting flange shall be coordinated with the tank's mounting flange, and
shall be ANSI or API pattern.
2.4.4.9
Special Tools
Pumps shall be furnished with special tools necessary to dismantle and
reassemble the unit.
2.4.4.10
Service Nameplate
A pump service nameplate, of type 18-8 stainless steel or monel, securely
attached by stainless steel pins at an easily accessible point on the pump,
shall be furnished in addition to the identification nameplate. The pump
service nameplate shall be stamped with the following information:
Manufacturer's name
Serial number of pump
Capacity, L/s gpm
Pumping head, m ft
Maximum specific gravity of fluid to be pumped
Revolutions per minute
Horsepower of driver
2.4.4.11
Identification Nameplate
A pump identification nameplate of Type 18-8 stainless steel or monel shall
be provided and securely attached by stainless steel pins to a conspicuous
place on the pump head. Tagging in letters 6 mm 1/4-inch high shall be the
equipment number as shown on the drawings.
2.4.4.12
Exterior Primer Coat
Exterior surfaces of the pump and baseplate shall be primed by the
manufacturer. Surface cleaning shall meet requirements of
SSPC SP 10/NACE No. 2. Metal primer shall be zinc rich paint conforming to
specification MIL-DTL-24441 Type 1, Class 3. Dry film thickness shall be
0.05 to 0.1 mm 2 to 4 mils.
2.4.4.13
Exterior Topcoat
Manufacturer's standard exterior topcoat shall be factory applied and shall
be white.
2.4.5
Motor
Refer to paragraph, Motors for the Fueling Pumps.
PART 3
3.1
3.1.1
EXECUTION
PREPARATION FOR SHIPMENT
Rust Preventative
Exterior machine surfaces shall be coated with a rust preventative. Pumps
shall be disassembled after the shop running tests and inspected, and
internal parts shall be coated with a rust preventative before reassembling.
SECTION 33 52 43.23
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3.1.2
Closure of Openings
Threaded openings shall be provided with metallic plugs or caps. Flanges
shall be gasketed with rubber and closed with 4.8 mm 3/16-inch thick plate
of the same outside diameter as the match flange. A minimum of four
full-diameter bolts shall hold closure in place.
3.1.3
Assembly
Pumps shall be shipped assembled or a field service engineer shall be
furnished to supervise the field assembly at no additional cost to the
Government.
3.1.4
Bracing
Each unit shall be suitably prepared for shipment, supported and braced,
with auxiliary equipment secured to prevent damage during shipment.
3.1.5
Vapor Inhibiting Wraps
Exposed shafts and shaft couplings shall be wrapped with waterproof
moldable waxed cloth or vapor inhibitor paper. The seams shall be sealed
with adhesive tape.
3.1.6
Shipping Identification
Each pump shall be identified with a metal tag showing the item number.
Material shipped separately shall be marked with a metal tag indicating the
item number for which it is intended.
3.2
INSTALLATION
Install equipment and components true to line, level and plumb, and
measured from established benchmarks or reference points. Follow
manufacturer's recommended practices for equipment installation. Provide
required clearances between equipment components. Equipment, apparatus,
and accessories requiring normal servicing or maintenance shall be easily
accessible.
3.2.1
Anchoring
Anchor equipment in place as indicated on the drawings or per
manufacturer's recommendations. Minimum anchor bolt size is 127 mm 5 inch.
Check alignment of anchor bolts and/or bolt holes before installing
equipment and clean-out associated sleeves. Do not cut bolts due to
misalignment. Notify the Contracting Officer of errors and obtain the
Contracting Officer's acceptance before proceeding with corrections. Cut
anchor bolts of excess length to the appropriate length without damage to
threads.
3.2.2
Grouting
Equipment which is anchored to a pad shall be grouted in place. Before
setting equipment in place and before placing grout, clean surfaces to be
in contact with grout, including fasteners and sleeves. Remove standing
water, debris, oil, rust, coatings and other materials which impair bond.
Clean contaminated concrete by grinding. Clean metal surfaces of mill
scale and rust by hand or power tool methods. Provide formwork for placing
and retaining grout. Grout to be non-metallic, non-shrink, fluid precision
SECTION 33 52 43.23
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grout of a hydraulic cementitious system with graded and processed silica
aggregate, portland cement, shrinkage compensating agents, plasticizing and
water reducing agents; free of aluminum powder agents, oxidizing agents and
inorganic accelerators, including chlorides; proportioned, pre-mixed and
packaged at factory with only the addition of water required at the project
site. Grouting to meet requirements of ASTM C827/C827M. Perform all
grouting in accord with equipment manufacturer's and grout manufacturer's
published specifications and recommendations.
3.2.3
Leveling and Aligning
Level and align equipment in accord with respective manufacturer's
published data. Do not use anchor bolt, jack-nuts or wedges to support,
level or align equipment. Install only flat shims for leveling equipment.
Place shims to fully support equipment. Wedging is not permitted. Shims
to be fabricated flat carbon steel units of surface configuration and area
not less than equipment bearing surface. Shims to provide for full
equipment support. Shim to have smooth surfaces and edges, free from burrs
and slivers. Flame or electrode cut edges not acceptable.
3.2.4
Direct Drives
Alignment procedure follows.
3.2.4.1
Rotation Direction and Speed
Check and correct drive shaft rotation direction and speed.
3.2.4.2
End Play
Run drive shafts at operational speed. Determine whether axial end play
exists. Run drive shaft at operational speed and mark drive shaft axial
position when end play exists. Block drive shaft in operating position
when aligning drive shaft with driven shaft.
3.2.4.3
Shaft Leveling and Radial Alignment
Check shaft leveling by placing a straightedge across the two coupling half
faces in both horizontal and vertical planes.
3.2.4.4
Angular Alignment and End Clearance
Pump alignment shall be accomplished by the factory technician or a
millwright trained in pump alignment, and with the use of dial gauges or
laser alignment equipment.
3.2.4.5
Final Recheck
Check adjustments with dial indicator after completing recheck. Align
shafts within 0.05 0.002-inch tolerance, except as otherwise required by
more stringent requirements of equipment manufacturer.
3.2.5
Start-up Representative
**************************************************************************
NOTE: Consult with COMMAND FUEL FACILITIES Engineer
to determine if additional training is required.
**************************************************************************
SECTION 33 52 43.23
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A manufacturer's field service representative shall be provided at no
additional cost to the Government to check the pumps for proper operation
prior to start-up and also to witness, as a minimum, the first two days of
operation. Any additional time required due to delays or corrections shall
be provided at no additional cost to the Government. The manufacturer's
field service representative shall also instruct the required personnel in
the proper operation and maintenance of the pumps.
-- End of Section --
SECTION 33 52 43.23
Page 27
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