ASTM F1718-99

Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps

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 in inches and pounds respectively. A companion metric standard is in the process of preparation.

General Information

• Status: Historical
• Publication Date: 09-Jun-2001
• 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

• Replaced By: ASTM F1718-01 - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 10-Jun-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 1718 – 99 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Rotary Positive Displacement Fuel Pumps
This standard is issued under the fixed designation F 1718; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope A 564/A 564M Specification for Hot-Rolled and Cold-
Finished Age-Hardening Stainless Steel Bars and Shapes
1.1 This specification covers the requirements applicable to
A 574 Specification for Alloy Steel Socket-Head Cap
the design and construction of rotary positive displacement
Screws
distillate fuel pumps for shipboard use.
A 582/A 582M Specification for Free-Machining Stainless
1.2 Lineal dimensions and units of force in this specification
Steel Bars
are expressed as inches and pounds respectively. A companion
A 743/A 743M Specification for Castings, Iron-Chromium,
metric standard is in the process of preparation.
Iron-Chromium-Nickel, Corrosion-Resistant, for General
2. Referenced Documents Application
A 747/A 747M Specification for Steel Castings, Stainless,
2.1 ASTM Standards:
Precipitation Hardening
A 36/A 36M Specification for Carbon Structural Steel
B 148 Specification for Aluminum-Bronze Sand Castings
A 53/A 53M Specification for Pipe, Steel, Black and Hot-
B 150 Specification for Aluminum Bronze Rod, Bar, and
Dipped, Zinc-Coated, Welded and Seamless
Shapes
A 106 Specification for Seamless Carbon Steel Pipe for
B 209 Specification for Aluminum and Aluminum-Alloy
High-Temperature Service
Sheet and Plate
A 193/A 193M Specification for Alloy-Steel and Stainless
B 221 Specification for Aluminum-Alloy Extruded Bars,
Steel Bolting Materials for High-Temperature Service
Rods, Wire, Shapes, and Tubes
A 194/A 194M Specification for Carbon and Alloy Steel
B 271 Specification for Copper-Base Alloy Centrifugal
Nuts for Bolts for High Pressure or High Temperature
Castings
Service, or Both
B 505 Specification for Copper-Base Alloy Continuous
A 240/A 240M Specification for Heat-Resisting Chromium
Castings
and Chromium-Nickel Stainless Steel Plate, Sheet, and
B 584 Specification for Copper Alloy Sand Castings for
Strip for Pressure Vessels
General Applications
A 269 Specification for Seamless and Welded Austenitic
D 1418 Practice for Rubber and Rubber Lattices— Nomen-
Stainless Steel Tubing for General Service
clature
A 276 Specification for Stainless Steel Bars and Shapes
D 2000 Classification System for Rubber Products in Auto-
A 312/A 312M Specification for Seamless and Welded
motive Applications
Austenitic Stainless Steel Pipes
D 3951 Practice for Commercial Packaging
A 354 Specification for Quenched and Tempered Alloy
F 104 Classification System for Nonmetallic Gasket Mate-
Steel Bolts, Studs, and Other Externally Threaded Fasten-
rials
ers
F 467 Specification for Nonferrous Nuts for General Use
A 434 Specification for Steel Bars, Alloy, Hot-Wrought or
F 468 Specification for Nonferrous Bolts, Hex Cap Screws,
Cold-Finished, Quenched and Tempered
and Studs for General Use
A 449 Specification for Quenched and Tempered Steel
F 593 Specification for Stainless Steel Bolts, Hex Cap
Bolts and Studs
Screws, and Studs
A 563 Specification for Carbon and Alloy Steel Nuts
F 594 Specification for Stainless Steel Nuts
F 837 Specification for Stainless Steel Socket Head Cap
This specification is under the jurisdiction of ASTM Committee F-25 on Ships
Screws
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery.
Current edition approved Jan. 10, 1999. Published May 1999. Originally
published as F 1718 - 97. Previous edition F 1718 - 97. Annual Book of ASTM Standards, Vol 01.02.
2 8
Annual Book of ASTM Standards, Vol 01.04. Annual Book of ASTM Standards, Vol 02.01.
3 9
Annual Book of ASTM Standards, Vol 01.01. Annual Book of ASTM Standards, Vol 02.02.
4 10
Annual Book of ASTM Standards, Vol 01.03. Annual Book of ASTM Standards, Vol 09.01.
5 11
Annual Book of ASTM Standards, Vol 15.08. Annual Book of ASTM Standards, Vol 09.02.
6 12
Annual Book of ASTM Standards, Vol 01.05. Annual Book of ASTM Standards, Vol 15.09.
F 1718
F 880 Specification for Stainless Steel Socket-Set Screws 3.1.1 capacity, n—the quantity of fluid actually delivered
F 912 Specification for Alloy Steel Socket Set Screws per unit of time at the rated speed, including both the liquid and
F 1511 Specification for Mechanical Seals for Shipboard dissolved or entrained gases, under stated operating conditions.
Pump Applications 3.1.2 Discussion—In the absence of any gas or vapor
2.2 ANSI Standard: entering or forming within the pump, the capacity is equal to
B16.24 Pipe Flanges and Flanged Fittings the volume displaced per unit of time, less slip.
2.3 ANSI/HI Standard: 3.1.3 capacity, maximum, n—the quantity of fluid delivered
3.6 Rotary Pump Tests that does not exceed the limit determined by the formula in
2.4 AMS Standards: 4.1.2.1.
3215 Acrylonitrile Butadiene (NBR) Rubber Aromatic Fuel 3.1.4 capacity, rated, n—the minimum quantity of fluid
Resistant 65-75 delivered at the specified conditions of discharge pressure, inlet
4676 Bars and Forgings, Corrosion Resistant, Hot Finished, pressure and viscosity as shown in Table 1.
Precipitation Hardenable 66.5 Ni, 3.0 AL, 0.62 Ti, 28 Cu 3.1.5 displacement, n—the volume displaced per revolution
4677 Bars and Forgings, Corrosion Resistant, Annealed of the rotor(s).
66.5 Ni, 2.9 AL, 30 Cu 3.1.6 Discussion—In pumps incorporating two or more
5894 Bars, Sheet, and Plate, Alloy 60 Co, 28 Cr, 4.5 W, 1.15 rotors operating at different speeds, the displacement is the
C, Solution Heat Treated volume displaced per revolution of the driving rotor. Displace-
2.5 AFBMA Standards: ment depends only on the physical dimensions of the pumping
9 Load Ratings and Fatigue Life for Ball Bearings elements.
11 Load Ratings and Fatigue Life for Roller Bearings 3.1.7 dry operation, n—a brief run during priming or
2.6 AGMA Standard: stripping with suction and discharge lines unrestricted and
390.03 Gear Classification, Materials and Measuring Meth- pump chamber wet with liquid but pumping only air or vapor
ods for Unassembled Gears available from the suction.
2.7 Military Standards: 3.1.8 effıciency, mechanical, n—the ratio of the pump
MIL-STD-167-1 (Ships) Mechanical Vibrations of Ship- power output (hydraulic horsepower) to the pump power input
board Equipment (Type 1—Environmental and Type (brake horsepower) expressed in percent.
2—Internally Excited) 3.1.9 effıciency, volumetric, n—the ratio of the pump’s
MIL-STD-740-1 (Ships) Airborne Sound Measurements capacity to the product of the displacement and the speed
and Acceptance Criteria of Shipboard Equipment expressed in percent.
MIL-STD-740-2 (Ships) Structureborne Vibratory Accel- 3.1.10 fuel, clean, n—fuel purified for direct use.
eration Measurements and Acceptance Criteria of Ship- 3.1.11 fuel, dirty, n—fuel before purification that may
board Equipment contain water and some solids.
2.8 Military Specifications: 3.1.12 net positive inlet pressure available (NPIPA), n—the
MIL-N-25027 Nut, Self-Locking, 250°F, 450°F and 800°F, total inlet pressure available from the system at the pump inlet
125 KSI FTU, 60 KSI FTU and 30 KSI FTU connection at the rated flow, minus the vapor pressure of the
MIL-S-901 Shock Tests, HI (High Impact) Shipboard Ma- liquid at the pumping temperature.
chinery, Equipment and Systems, Requirements for Navy 3.1.13 net positive inlet pressure required (NPIPR), n—the
MIL-R-83248 Rubber Fluorocarbon Elastomer, High Per- net pressure above the liquid vapor pressure at rated flow and
formance Fluid, and Compression Set Resistant pumping temperature and at the pump inlet connection re-
2.9 International Standards Organization Standards: quired to avoid performance impairment due to cavitation.
ISO 9001 Quality Systems and Quality Assurance—Design/ 3.1.14 pressure, cracking, n—sometimes called set pres-
Development, Production, Installation, and Service sure, start-to-discharge pressure, or popping pressure; the
ISO 9066 Information Processing Systems—Text pressure at which the relief valve just starts to open.
Communication—Reliable Transfer—Part 2: Protocol 3.1.15 Discussion—This pressure cannot be determined
Specification readily in a relief valve that bypasses the liquid within the
pump.
3. Terminology
3.1.16 pressure, differential, n—the difference between dis-
3.1 Definitions: charge pressure and inlet pressure.
3.1.17 pressure, discharge, n—the total pressure at the
outlet of the pump; discharge pressure is sometimes called
Annual Book of ASTM Standards, Vol 01.07. outlet pressure.
Available from American National Standards Institute, 11 W. 42nd St., 13th
3.1.18 pressure, inlet, n—the total pressure at the inlet of the
Floor, New York, NY 10036.
Available from Society of Automotive Engineers, 400 Commonwealth Dr.,
TABLE 1 Pump Sizes
Warrendale, PA 15096.
Available from Anti-Friction Bearing Manufacturers Association, 1101 Con-
Size A B C D E F G H
necticut Ave., NW, Suite 700, Washington, DC 20036.
Rated capacity (gpm) 10 25 50 75 100 200 300 400
Available from American Gear Manufacturers Association, Suite 1000, 1901
Maximum capacity (gpm) 13 30 59 86 114 221 328 433
N. Fort Myer Dr., Arlington, VA 22209.
18 Flange rating (lb) 150 150 150 150 150 150 150 150
Available from Standardization Documents Order Desk, Bldg. 4, Section D,
700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
F 1718
pump. Inlet pressure is sometimes called suction pressure.
Q 5 Q 1 1 (1)
max 0.4
F G
3.1.19 pressure, maximum allowable working, n—the maxi- 1 1 Q
mum continuous pressure for which the manufacturer has
where:
designed the equipment (or any part to which the term is
Q 5 the rated capacity (minimum capacity) and
referred) when handling the specified fluid at the specified
Q 5 maximum allowable capacity, at 32-SSU viscosity
max
temperature.
Q shall be rounded to nearest whole number.
max
3.1.20 Discussion—This pressure should not be greater than
two thirds of the hydrostatic test pressure of the pressure
5. Ordering Information
containing parts.
5.1 The ordering activity is to provide the following infor-
3.1.21 rated condition, n—defined by discharge pressure,
mation to the potential bidders:
inlet pressure, capacity, and viscosity.
5.1.1 Title, number, and date of specification.
3.1.22 rotary pump, n—a positive displacement pump con-
5.1.2 Type and size of each pump (see Section 4).
sisting of a casing containing gears, screws, lobes, cams, vanes,
5.1.3 Quantity of each pump type and size (see Table 1).
shoes, or similar elements actuated by relative rotation between
5.1.4 Mounting configuration (vertical, horizontal).
the drive shaft and the casing.
5.1.5 Motor characteristics and specifications (see 7.6 and
3.1.23 Discussion—There are no inlet and outlet valves.
motor specification if applicable).
These pumps are characterized by their close running clear-
5.1.6 Discharge pressure.
ances.
5.1.7 System relief valve cracking pressure and full flow
3.1.24 slip, n—the quantity of fluid that leaks through the
bypass pressure (see 7.6 and 7.15).
internal clearances of a rotary pump per unit of time.
5.1.8 Preservation, packaging, packing, and boxing require-
3.1.25 Discussion—Slip depends on the internal clearances,
ments (see Section 14).
the differential pressure, the characteristics of the fluid handled
5.1.9 Quantity of drawings (see 13.2).
and in some cases, the speed.
5.1.10 Quantity of manuals (see 13.3).
3.1.26 speed, maximum allowable, n—in revolutions per
5.1.11 Format and quantity of each type of test report (see
minute, the highest 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-
3.1.27 speed, minimum allowable, n—in revolutions per
cable (see S12.3).
minute, the lowest speed at which the manufacturers’ design
5.1.13 Types of certified data required (see 12.1.2).
will permit continuous operation.
5.1.14 Instruction plates and locations, if required.
3.1.28 speed, rated, n—the number of revolutions per
5.1.15 Define shipbuilding specification, if applicable (see
minute of the driving rotor required to meet the rated condi-
13.1).
tions.
3.1.29 suction lift, n—a term used to define a pump’s
6. Materials
capability to induce a partial vacuum at the pump inlet.
6.1 Pump component parts shall be constructed of the
3.1.30 temperature, maximum allowable, n—the maximum
materials shown in Table 2.
continuous temperature for which the manufacturer has de-
signed the equipment (or any part to which the term is referred)
7. General Requirements
when handling the specified fluid at the specified pressure.
7.1 Pumps shall be designed to pump distillate fuel and
3.1.31 unit, pump, n—the pump and motor assembly; it also
aviation turbine fuel with a viscosity range of 32 to 100 SSU
includes a gear box, base, couplings, guards, as required.
(2 to 21 cSt).
4. Classification
7.2 Pumps shall be capable of sustained operation during
4.1 Pumps shall be classified as follows: inclinations up to 45° in any direction.
4.1.1 Types: 7.3 The pumps shall be capable of withstanding environ-
4.1.1.1 Type II—Screws with timing gears. mental vibration induced by shipboard machinery and equip-
4.1.1.2 Type III—Screws without timing gears. ment in the frequency range of 4 to 25 Hz.
7.4 The internally excited vibration levels of the pump shall
4.1.1.3 Type IV—Impellers with timing gears.
4.1.1.4 Type V—External gear (spur, helical, herringbone, not exceed 0.003-in. (0.076-mm) displacement peak to peak
during rated operation when readings are measured on the
lobe).
4.1.1.5 Type VIII—Internal gear, internal rotary lobe. pump case near the coupling perpendicular to the pump shaft.
7.5 At the conditions in 4.1.2, the airborne noise level of the
4.1.1.6 Type X—Vane (sliding).
4.1.1.7 Type XI—Sliding shoe. pump unit shall meet the requirements in Table 3.
4.1.2 Sizes: 7.6 The pump shall be driven by an electric motor. The
4.1.2.1 Standard pump sizes shall be as shown in Table 1. driver shall be sized for maximum flow at the relief valve full
Rated capacity shall be based on 150-psig discharge pressure, flow bypass pressure, at maximum viscosity.
10-psia inlet pressure and 32-SSU viscosity (1034-kPa gage
...