ASTM F998-02

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation: F 998 – 02
Standard Specification for
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Centrifugal Pump, Shipboard Use
This standard is issued under the fixed designation F 998; 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.
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1. Scope B 148 Specification for Aluminum-Bronze Sand Castings
B 164 Specification for Nickel-Copper Alloy Rod, Bar, and
1.1 This specification covers the requirements applicable to
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Wire
the design and construction of centrifugal pumps for shipboard
B 271 Specification for Copper-Base Alloy Centrifugal
application. The three classes of service covered by this
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Castings
specification are as follows:
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B 369 Specification for Copper-Nickel Alloy Castings
1.1.1 Class 1—Freshwater,
B 505 Specification for Copper-Base Alloy Continuous
1.1.2 Class 2—Seawater, and
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Castings
1.1.3 Class 3—Hydrocarbon pumps (less than 1500 SSU).
B 584 Specification for Copper Alloy Sand Castings for
1.2 The values stated in inch-pound units are to be regarded
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General Applications
as the standard. The values given in parentheses are provided
F 468 Specification for Nonferrous Bolts, Hex Cap Screws,
for information purposes only.
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and Studs for General Use
2. Referenced Documents
F 1511 Specification for Mechanical Seals for Shipboard
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Pump Applications
2.1 ASTM Standards:
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2.2 ANSI Standards:
A 36/A 36M Specification for Carbon Structural Steel
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B1 ISO Metric Screw Threads (ANSI-B1 Report)
A 193/A 193M Specification for Alloy-Steel and Stainless
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B1.1 Unified Screw Threads
Steel Bolting Materials for High-Temperature Service
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B16.1 Cast Iron Pipe Flanges and Flange Fittings
A 194/A 194M Specification for Carbon and Alloy Steel
B16.5 Steel Pipe Flanges, Flanged Valves and Fittings, 150,
Nuts for Bolts for High Pressure or High Temperature
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3
300, 400, 600, 900, 1500 and 2500 lb.
Service, or Both
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B16.11 Forged Steel Fittings, Socket Welding and
A 276 Specification for Stainless Steel Bars and Shapes
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Threaded
A 494/A 494M Specification for Castings, Nickel and
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5
B16.24 Bronze Flanges and Flanged Fittings, 150, 300lb
Nickel Alloy
2.3 Hydraulic Institute Standards:
A 582/A 582M Specification for Free-Machining Stainless
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ANSI/HI 1.1-1.5 American National Standard for Centrifu-
Steel Bars
gal Pumps for Nomenclature, Definitions, Applications
A 743/A 743M Specification for Castings, Iron-Chromium,
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and Operation
Iron-Chromium-Nickel, Corrosion-Resistant, for General
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ANSI/HI 1.6 American National Standard for Centrifugal
Application
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Pump Tests
A 747/A 747M Specification for Steel Castings, Stainless,
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ANSI/HI 9.1-9.6 American National Standard for Pumps—
Precipitation Hardening
General Guidelines for Types, Definitions, Applications
A 890/A 890 Standard Specification for Castings,
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and Sound Measurements
Iron–Chromium-Nickel-Molybdenum Corrosion Resis-
2.4 AFBMA Standards:
tant, Duplex (Austentitic/Ferritic) for General Applica-
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5
9 Load Ratings and Fatigue Life for Ball Bearings
tions
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11 Load Ratings and Fatigue Life for Roller Bearings
2.5 ISO Standards:
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This specification is under the jurisdiction of Committee F25 on Ships and
Marine Technology and is the direct responsibility of Subcommittee F25.11 on
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Machinery. Annual Book of ASTM Standards, Vol 02.01.
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Current edition approved July 10, 2002. Published September 2002. Originally Annual Book of ASTM Standards, Vol 02.04.
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published as F 998 – 97. Last previous edition F 998 – 00. Annual Book of ASTM Standards, Vol 01.08.
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Annual Book of ASTM Standards, Vol 01.04. Annual Book of ASTM Standards, Vol 01.07.
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Annual Book of ASTM Standards, Vol 01.01. Available from American National Standards Institute, 25 W. 43rd St., 4th
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Annual Book of ASTM Standards, Vol 01.03. Floor, New York, NY 10036.
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Annual Book of ASTM Standards, Vol 01.02. Anti-Friction Bearing Manufacturers Association, Inc., 1101 Connecticut Ave.,
N.W., Suite 700, Washington, DC 20036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F998–02
ISO 9001 Quality Systems and Quality Assurance—Design/ 3.1.18 net positive suction head required (NPSHR), n—the
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Development, Production, Installation and Service amount of suction head over vapor pressure required at the
pump to prevent more than a 3 % loss in total head from the
3. Terminology first stage of the pump at a specific capacity.
3.1.19 nonmetallic materials, n—any material that would
3.1 Definitions:
not be recognized as a metal. Examples include plastics,
3.1.1 best effıciency point (BE
...