ASTM F1718-01(2019)

Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps

ABSTRACT
This specification covers the design and construction requirements of rotary positive displacement distillate fuel pumps intended for use in shipboard. Pumps covered by this specification are of Types II, III, IV, V, VIII, X, and XI and of sizes A-H. The pump shall be manufactured capable of sustaining operation in any direction up to a certain inclination, shall withstand environmental vibration induced by shipboard machinery and equipment, shall be driven by an electric motor, and besides distillate fuel, the pump shall also be used to pump aviation turbine fuel. Performance acceptance tests shall be performed, including mechanical running test, noise test, and hydrostatic test, and shall conform to the requirements specified.
SCOPE
1.1 This specification covers the requirements applicable to the design and construction of rotary positive displacement distillate fuel pumps for shipboard use.  
1.2 Lineal dimensions and units of force in this specification are expressed as inches and pounds respectively. A companion metric standard is in the process of preparation.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Apr-2019
• ICS: 47.020.20 - Marine engines and propulsion systems
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.11 - Machinery and Piping Systems

Relations

• Replaces: ASTM F1718-01(2013) - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 01-May-2019
• Refers: ASTM A193/A193M-24 - Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
• Effective Date: 01-Mar-2024
• Refers: ASTM A53/A53M-24 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
• Effective Date: 01-Mar-2024
• Refers: ASTM A312/A312M-24 - Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
• Effective Date: 01-Mar-2024
• Refers: ASTM A240/A240M-23a - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
• Effective Date: 01-Nov-2023
• Refers: ASTM D3951-18(2023) - Standard Practice for Commercial Packaging
• Effective Date: 01-Oct-2023
• Refers: ASTM B505/B505M-23 - Standard Specification for Copper Alloy Continuous Castings
• Effective Date: 01-Oct-2023
• Refers: ASTM A194/A194M-20 - Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
• Effective Date: 01-May-2020
• Refers: ASTM F104-11(2020) - Standard Classification System for Nonmetallic Gasket Materials
• Effective Date: 01-Jan-2020
• Refers: ASTM A106/A106M-19a - Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
• Effective Date: 01-Nov-2019
• Refers: ASTM A564/A564M-19 - Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• Effective Date: 01-May-2019
• Refers: ASTM B150/B150M-19 - Standard Specification for Aluminum Bronze Rod, Bar, and Shapes
• Effective Date: 01-Apr-2019
• Refers: ASTM B148-18 - Standard Specification for Aluminum-Bronze Sand Castings
• Effective Date: 01-Oct-2018
• Refers: ASTM F837-13(2018) - Standard Specification for Stainless Steel Socket Head Cap Screws
• Effective Date: 01-Sep-2018
• Refers: ASTM F467-13(2018) - Standard Specification for Nonferrous Nuts for General Use
• Effective Date: 01-Sep-2018

Overview

ASTM F1718-01(2019) is the Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps, issued by ASTM International. This standard specifies the requirements for the design, construction, and testing of rotary positive displacement pumps engineered for shipboard use. These pumps are essential for transferring distillate fuel and aviation turbine fuel in marine environments, ensuring efficient and reliable fuel handling onboard vessels. The standard identifies various pump types (II, III, IV, V, VIII, X, XI) within sizes ranging from A-H, addressing their performance, durability, and compatibility with shipboard conditions.

Key Topics

• Design and Construction: The standard details requirements for robust design, including materials selection, mechanical configuration, and operational tolerances. Pumps must be capable of operating at up to 45° inclinations, withstand shipboard vibrations, and be driven by an electric motor.
• Performance Testing: Comprehensive acceptance tests are mandatory. These include:
  • Mechanical running tests
  • Noise tests to meet shipboard acoustic criteria
  • Hydrostatic pressure tests to verify leak resistance and structural integrity
• Pump Types and Sizes: Classification covers different rotary pump mechanisms (e.g., screws with/without timing gears, external/internal gears, vanes, sliding shoes) and standard sizes (A-H), aligned to specific capacity ranges.
• Materials and Components: The standard prescribes suitable materials (aluminum bronze, stainless steel, leaded tin bronze, Monel alloys, and others) for critical pump parts to ensure performance under marine conditions, corrosion resistance, and mechanical strength.
• Technical Documentation: Requirements for detailed drawings, performance curves, technical manuals, and identification plates for effective installation, operation, and maintenance.
• Quality and Manufacturing: Manufacturers must operate a certified ISO 9001 quality system, ensuring consistency and reliability of pump production.

Applications

Rotary positive displacement distillate fuel pumps standardized under ASTM F1718-01(2019) serve a vital role in the marine sector, particularly for:

• Shipboard Fuel Transfer: Ensuring safe and continuous supply of distillate fuels and aviation turbine fuels to shipboard engines, auxiliary equipment, and aircraft-support systems.
• Wide Vessel Compatibility: Applicable to military and commercial vessels due to their design flexibility, vibration resistance, and adaptability to different mounting configurations.
• Harsh Environments: The construction and testing requirements guarantee operation in dynamic, vibration-prone environments typical of ships at sea.
• Reliable Performance: Strict acceptance and qualification testing ensure pumps meet safety, noise, vibration, and shock standards for critical maritime applications.

Related Standards

Understanding and application of ASTM F1718-01(2019) is complemented by several related standards, including:

• ASTM F1511: Mechanical Seals for Shipboard Pump Applications
• ASME B16.24: Pipe Flanges and Flanged Fittings
• ANSI/HI 3.6: Rotary Pump Tests
• ISO 9001: Quality Management Systems
• MIL-STD-167-1, MIL-STD-740-1, MIL-STD-740-2: Vibration and noise standards for shipboard equipment
• Various ASTM Material Standards: For metals, alloys, and fasteners integral to pump manufacturing (e.g., ASTM A240, A276, B148, B584)

Practical Value

Implementing ASTM F1718-01(2019) ensures standardized, safe, and efficient operation of shipboard fuel pumps. Compliance supports:

• Safety: Reducing risks of fuel leaks, excess noise, and vibration damage
• Reliability: Maximizing operational up-time for critical fuel handling systems
• Maintainability: Streamlined documentation and consistent parts facilitate installation, repair, and inspection
• Interoperability: Aligns pump designs with international best practices, ensuring compatibility for global shipping operations

Keywords: rotary positive displacement pump, distillate fuel pump, shipboard fuel pump, ASTM F1718, marine fuel transfer, pump testing, vibration-resistant pump, ISO 9001 pumps.

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F1718 −01 (Reapproved 2019) An American National Standard
Standard Specification for
Rotary Positive Displacement Distillate Fuel Pumps
This standard is issued under the fixed designation F1718; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope A312/A312M Specification for Seamless, Welded, and
Heavily Cold Worked Austenitic Stainless Steel Pipes
1.1 This specification covers the requirements applicable to
A354Specification for Quenched and TemperedAlloy Steel
the design and construction of rotary positive displacement
Bolts, Studs, and Other Externally Threaded Fasteners
distillate fuel pumps for shipboard use.
A434Specification for Steel Bars, Alloy, Hot-Wrought or
1.2 Linealdimensionsandunitsofforceinthisspecification
Cold-Finished, Quenched and Tempered
are expressed as inches and pounds respectively.Acompanion
A449Specification for Hex Cap Screws, Bolts and Studs,
metric standard is in the process of preparation.
Steel, Heat Treated, 120/105/90 ksi Minimum Tensile
1.3 This international standard was developed in accor-
Strength, General Use
dance with internationally recognized principles on standard-
A563Specification for Carbon and Alloy Steel Nuts
ization established in the Decision on Principles for the
A564/A564M Specification for Hot-Rolled and Cold-
Development of International Standards, Guides and Recom-
Finished Age-Hardening Stainless Steel Bars and Shapes
mendations issued by the World Trade Organization Technical
A574SpecificationforAlloySteelSocket-HeadCapScrews
Barriers to Trade (TBT) Committee.
A582/A582MSpecification for Free-Machining Stainless
Steel Bars
2. Referenced Documents
A743/A743MSpecification for Castings, Iron-Chromium,
2.1 ASTM Standards:
Iron-Chromium-Nickel, Corrosion Resistant, for General
A36/A36MSpecification for Carbon Structural Steel
Application
A53/A53MSpecification for Pipe, Steel, Black and Hot-
A747/A747MSpecification for Steel Castings, Stainless,
Dipped, Zinc-Coated, Welded and Seamless
Precipitation Hardening
A106/A106MSpecification for Seamless Carbon Steel Pipe
B148Specification for Aluminum-Bronze Sand Castings
for High-Temperature Service
B150/B150MSpecification forAluminum Bronze Rod, Bar,
A193/A193MSpecification for Alloy-Steel and Stainless
and Shapes
Steel Bolting for High Temperature or High Pressure
B209Specification for Aluminum and Aluminum-Alloy
Service and Other Special Purpose Applications
Sheet and Plate
A194/A194MSpecification for Carbon Steel, Alloy Steel,
B221Specification forAluminum andAluminum-Alloy Ex-
and Stainless Steel Nuts for Bolts for High Pressure or
truded Bars, Rods, Wire, Profiles, and Tubes
High Temperature Service, or Both
B271Specification for Copper-BaseAlloy Centrifugal Cast-
A240/A240MSpecification for Chromium and Chromium-
ings
Nickel Stainless Steel Plate, Sheet, and Strip for Pressure
B505/B505MSpecification for Copper Alloy Continuous
Vessels and for General Applications
Castings
A269Specification for Seamless and Welded Austenitic
B584Specification for Copper Alloy Sand Castings for
Stainless Steel Tubing for General Service
General Applications
A276Specification for Stainless Steel Bars and Shapes
D1418 Practice for Rubber and Rubber Latices—
Nomenclature
D2000Classification System for Rubber Products in Auto-
This specification is under the jurisdiction ofASTM Committee F25 on Ships
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
motive Applications
Machinery and Piping Systems.
D3951Practice for Commercial Packaging
Current edition approved May 1, 2019. Published June 2019. Originally
F104Classification System for Nonmetallic Gasket Materi-
approved in 1997. Last previous edition approved in 2013 as F1718–01 (2013).
DOI: 10.1520/F1718-01R19.
als
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
F467Specification for Nonferrous Nuts for General Use
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
F468Specification for Nonferrous Bolts, Hex Cap Screws,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Socket Head Cap Screws, and Studs for General Use
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1718 − 01 (2019)
F593Specification for Stainless Steel Bolts, Hex Cap 2.9 International Standards Organization Standards:
Screws, and Studs ISO9001Quality Systems and QualityAssurance—Design/
F594Specification for Stainless Steel Nuts Development, Production, Installation, and Service
F837Specification for Stainless Steel Socket Head Cap ISO 9066 Information Processing Systems—Text
Screws Communication—Reliable Transfer—Part 2: Protocol
F880Specification for Stainless Steel Socket, Square Head, Specification
and Slotted Headless-Set Screws
3. Terminology
F912Specification for Alloy Steel Socket Set Screws
F1511Specification for Mechanical Seals for Shipboard
3.1 Definitions:
Pump Applications
3.1.1 capacity, n—the quantity of fluid actually delivered
2.2 ASME Standard:
perunitoftimeattheratedspeed,includingboththeliquidand
B16.24Pipe Flanges and Flanged Fittings dissolvedorentrainedgases,understatedoperatingconditions.
2.3 ANSI/HI Standard: 3.1.1.1 Discussion—In the absence of any gas or vapor
entering or forming within the pump, the capacity is equal to
3.6Rotary Pump Tests
the volume displaced per unit of time, less slip.
2.4 AMS Standards:
3215Acrylonitrile Butadiene (NBR) Rubber Aromatic Fuel
3.1.2 capacity, maximum, n—thequantityoffluiddelivered
Resistant 65-75
that does not exceed the limit determined by the formula in
4676Bars and Forgings, Corrosion Resistant, Hot Finished,
4.1.2.1.
Precipitation Hardenable 66.5 Ni, 3.0AL, 0.62 Ti, 28 Cu
3.1.3 capacity, rated, n—the minimum quantity of fluid
4677BarsandForgings,CorrosionResistant,Annealed66.5
deliveredatthespecifiedconditionsofdischargepressure,inlet
Ni, 2.9 AL, 30 Cu
pressure and viscosity as shown in Table 1.
5894Bars,Sheet,andPlate,Alloy60Co,28Cr,4.5W,1.15
3.1.4 displacement, n—the volume displaced per revolution
C, Solution Heat Treated
of the rotor(s).
2.5 ABMA Standards:
3.1.4.1 Discussion—In pumps incorporating two or more
9Load Ratings and Fatigue Life for Ball Bearings
rotors operating at different speeds, the displacement is the
11Load Ratings and Fatigue Life for Roller Bearings
volume displaced per revolution of the driving rotor. Displace-
2.6 AGMA Standard:
ment depends only on the physical dimensions of the pumping
390.03Gear Classification, Materials and Measuring Meth-
elements.
ods for Unassembled Gears
3.1.5 dry operation, n—a brief run during priming or
2.7 Military Standards:
stripping with suction and discharge lines unrestricted and
MIL-STD-167-1(Ships) Mechanical Vibrations of Ship-
pump chamber wet with liquid but pumping only air or vapor
board Equipment (Type 1—Environmental and Type
available from the suction.
2—Internally Excited)
3.1.6 effıciency, mechanical, n—the ratio of the pump
MIL-STD-740-1(Ships)AirborneSoundMeasurementsand
power output (hydraulic horsepower) to the pump power input
Acceptance Criteria of Shipboard Equipment
(brake horsepower) expressed in percent.
MIL-STD-740-2(Ships) StructureborneVibratoryAccelera-
tion Measurements andAcceptance Criteria of Shipboard
3.1.7 effıciency, volumetric, n—the ratio of the pump’s
Equipment
capacity to the product of the displacement and the speed
2.8 Military Specifications: expressed in percent.
MIL-N-25027Nut, Self-Locking, 250°F, 450°F and 800°F,
3.1.8 fuel, clean, n—fuel purified for direct use.
125 KSI FTU, 60 KSI FTU and 30 KSI FTU
3.1.9 fuel, dirty, n—fuelbeforepurificationthatmaycontain
MIL-S-901 Shock Tests, HI (High Impact) Shipboard
water and some solids.
Machinery, Equipment and Systems, Requirements for
3.1.10 net positive inlet pressure available (NPIPA), n—the
Navy
total inlet pressure available from the system at the pump inlet
MIL-R-83248 Rubber Fluorocarbon Elastomer, High Per-
connection at the rated flow, minus the vapor pressure of the
formance Fluid, and Compression Set Resistant
liquid at the pumping temperature.
3.1.11 net positive inlet pressure required (NPIPR), n—the
Available from American Society of Mechanical Engineers (ASME), ASME
net pressure above the liquid vapor pressure at rated flow and
International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
pumping temperature and at the pump inlet connection re-
www.asme.org.
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., quired to avoid performance impairment due to cavitation.
4th Floor, New York, NY 10036, http://www.ansi.org.
AvailablefromSAEInternational(SAE),400CommonwealthDr.,Warrendale,
PA 15096, http://www.sae.org.
TABLE 1 Pump Sizes
Available from American Bearing Manufacturers Association (ABMA), 2025
Size A B C D E F G H
M Street, NW Suite 800, Washington, DC 20036, http://www.abma-dc.org.
Available from American Gear Manufacturer’s Association (AGMA), 500
Rated capacity (gpm) 10 25 50 75 100 200 300 400
Montgomery St., Suite 350, Alexandria, VA 22314-1581, http://www.agma.org.
Maximum capacity (gpm) 13 30 59 86 114 221 328 433
Available from DLA Document Services, Building 4/D, 700 Robbins Ave., Flange rating (lb) 150 150 150 150 150 150 150 150
Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
F1718 − 01 (2019)
3.1.12 pressure, cracking, n—sometimescalledsetpressure, 4.1.1 Types:
start-to-dischargepressure,orpoppingpressure;thepressureat 4.1.1.1 Type II—Screws with timing gears.
which the relief valve just starts to open.
4.1.1.2 Type III—Screws without timing gears.
3.1.12.1 Discussion—This pressure cannot be determined
4.1.1.3 Type IV—Impellers with timing gears.
readily in a relief valve that bypasses the liquid within the
4.1.1.4 Type V—External gear (spur, helical, herringbone,
pump.
lobe).
4.1.1.5 Type VIII—Internal gear, internal rotary lobe.
3.1.13 pressure, differential, n—the difference between dis-
4.1.1.6 Type X—Vane (sliding).
charge pressure and inlet pressure.
4.1.1.7 Type XI—Sliding shoe.
3.1.14 pressure, discharge, n—the total pressure at the
4.1.2 Sizes:
outlet of the pump; discharge pressure is sometimes called
4.1.2.1 Standard pump sizes shall be as shown in Table 1.
outlet pressure.
Rated capacity shall be based on 150-psig discharge pressure,
3.1.15 pressure, inlet, n—thetotalpressureattheinletofthe
10-psia inlet pressure and 32-SSU viscosity (1034-kPa gauge,
pump. Inlet pressure is sometimes called suction pressure.
69kPaabsolute,and2centistoke,respectively).Ratedcapacity
3.1.16 pressure, maximum allowable working, n—the maxi-
equalstheminimumcapacity.Themaximumcapacityshallnot
mum continuous pressure for which the manufacturer has
exceed the amount determined by the following formula:
designed the equipment (or any part to which the term is
referred) when handling the specified fluid at the specified
Q 5 Q 11 (1)
F G
max 0.4
11Q
temperature.
3.1.16.1 Discussion—This pressure should not be greater where:
than two thirds of the hydrostatic test pressure of the pressure
Q = the rated capacity (minimum capacity) and
containing parts.
Q = maximum allowable capacity, at 32-SSU viscosity
max
Q shall be rounded to nearest whole number.
3.1.17 rated condition, n—defined by discharge pressure,
max
inlet pressure, capacity, and viscosity.
5. Ordering Information
3.1.18 rotary pump, n—a positive displacement pump con-
sistingofacasingcontaininggears,screws,lobes,cams,vanes, 5.1 The ordering activity is to provide the following infor-
shoes,orsimilarelementsactuatedbyrelativerotationbetween
mation to the potential bidders:
the drive shaft and the casing. 5.1.1 Title, number, and date of specification.
3.1.18.1 Discussion—There are no inlet and outlet valves.
5.1.2 Type and size of each pump (see Section 4).
These pumps are characterized by their close running clear-
5.1.3 Quantity of each pump type and size (see Table 1).
ances.
5.1.4 Mounting configuration (vertical, horizontal).
5.1.5 Motor characteristics and specifications (see 7.6 and
3.1.19 slip, n—the quantity of fluid that leaks through the
motor specification if applicable).
internal clearances of a rotary pump per unit of time.
3.1.19.1 Discussion—Slip depends on the internal 5.1.6 Discharge pressure.
5.1.7 System relief valve cracking pressure and full flow
clearances, the differential pressure, the characteristics of the
fluid handled and in some cases, the speed. bypass pressure (see 7.6 and 7.15).
5.1.8 Preservation, packaging, packing, and boxing require-
3.1.20 speed, maximum allowable, n—in revolutions per
ments (see Section 14).
minute, the highest speed at which the manufacturers’ design
5.1.9 Quantity of drawings (see 13.2).
will permit continuous operation.
5.1.10 Quantity of manuals (see 13.3).
3.1.21 speed, minimum allowable, n—in revolutions per
5.1.11 Format and quantity of each type of test report (see
minute, the lowest speed at which the manufacturers’ design
12.1.1.4 and S12.3.8).
will permit continuous operation.
5.1.12 Shock, noise, and vibration requirements, if appli-
3.1.22 speed, rated, n—the number of revolutions per
cable (see S12.3).
minute of the driving rotor required to meet the rated condi-
5.1.13 Types of certified data required (see 12.1.2).
tions.
5.1.14 Instruction plates and locations, if required.
3.1.23 suction lift, n—a term used to define a pump’s
5.1.15 Define shipbuilding specification, if applicable (see
capability to induce a partial vacuum at the pump inlet.
13.1).
3.1.24 temperature, maximum allowable, n—the maximum
6. Materials
continuous temperature for which the manufacturer has de-
signedtheequipment(oranyparttowhichthetermisreferred)
6.1 Pump component parts shall be constructed of the
when handling the specified fluid at the specified pressure.
materials shown in Table 2.
3.1.25 unit, pump, n—thepumpandmotorassembly;italso
includes a gear box, base, couplings, guards, as required.
7. General Requirements
7.1 Pumps shall be designed to pump distillate fuel and
4. Classification
aviation turbine fuel with a viscosity range of 32 to 100 SSU
4.1 Pumps shall be classified as follows:
(2 to 21 cSt).
F1718 − 01 (2019)
TABLE 2 Materials
Component Materials Specification (UNS)
Casings, heads and covers Aluminum bronze B148 (C95800)
Leaded tin bronze B584 (C93700)
Stainless steel, precipitation hardening A747/A747M
Shafts Ni-Cu-Al alloy (Monel K-500) AMS 4676, AMS 4677 (N05500)
Stainless steel A564/A564M (S17400)
Rotors Aluminum bronze B150/B150M (C63000)
Leaded tin bronze B584 (C93700)
Ni-Cu-Al alloy (Monel K-500) AMS 4676, AMS 4677 (N05500)
Austenitic stainless steel A276 (S21800)
Stainless steel, precipitation hardening A564/A564M (S17400)
Rotor housings, liners, and disks Leaded tin bronze B584, B505/B505M,or B271 (C93700)
Stainless steel, precipitation hardening A564/A564M, A747/A747M (S17400)
Stellite AMS 5894
Glands Stainless steel A743/A743M Gr. CF8M (J92900)
Tin bronze B584, B271,or B505/B505M (C90300)
Bedplates and brackets Aluminum B209 Gr. 5086, B221 Gr. 5086
Steel pipe A53/A53M, A106/A106M
Stainless steel A240/A240M, A269, A312/A312M
Structural steel A36/A36M
Timing gears Nitrided steel A434 Gr. 4140, C1.BC
Stainless steel A582/A582M (S41600)
Studs, bolts, hex head cap screws Medium carbon and alloy steel A449, A193/A193M Gr. B7, A354 Gr. BD
Austenitic stainless steel (304/316) A193/A193M Gr. 8/8M, F593 Grp. 1 or 2
Ni-Cu alloy F468 (N04400)
Ni-Cu-Al alloy F468 (N05500)
Socket head cap screws Alloy steel A574
Austenitic stainless steel F837,Grp.1
Socket set screws Alloy steel F912
Austenitic stainless steel F880
Nuts, hex Carbon steel A563,Gr.B
Medium carbon steel, quenched and tempered A194/A194M Gr. 8/8M, A563 Gr. DH (equiv. Gr. 8)
Austenitic stainless steel A194/A194M Gr. 8/8M, F594,Grp.1or2
Ni-Cu alloy F467 (N04400)
Flange nuts, hex Carbon steel A563
Self-locking hex nuts, nylon inserts Carbon steel A563, Gr. DH (equiv. SAE Gr. 8) and
MIL-N-25027
Austenitic stainless steel F594, Grp. 1 or 2 and MIL-N-25027
O-rings and other elastomers Fluorocarbon (Viton, Fluorel, or equal) D1418 Class: FKM, MIL-R-83248, D2000
Type and Class: HK
Gaskets Plant and animal fiber F104, I.D. No. P 3313B
Fluorocarbon D1418 Class: FKM, D2000
Type and Class: HK
Vanes and shoes Nitrile (Buna-N or equal) AMS 3215
Leaded tin bronze B584 (C93700)
Thermoset composite None
7.2 Pumps shall be capable of sustained operation during 7.6 The pump shall be driven by an electric motor. The
inclinations up to 45° in any direction.
driver shall be sized for maximum flow at the relief valve full
flow bypass pressure, at maximum viscosity.
7.3 The pumps shall be capable of withstanding environ-
mental vibration induced by shipboard machinery and equip-
7.7 Ifareductiongearisrequiredbetweenthedriverandthe
ment in the frequency range o
...