ASTM F998-00

Designation: F 998 – 00 An American National Standard
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.
1. Scope B 505 Specification for Copper-Base Alloy Continuous
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Castings
1.1 This specification covers the requirements applicable to
B 584 Specification for Copper Alloy Sand Castings for
the design and construction of centrifugal pumps for shipboard
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General Applications
application. The six classes of service covered by this specifi-
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F 467 Specification for Nonferrous Nuts for General Use
cation are as follows:
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F 467M Specification for Nonferrous Nuts for General Use
1.1.1 Class 1—Boiler feedwater and other freshwater appli-
F 468 Specification for Nonferrous Bolts, Hex Cap Screws,
cations with temperatures above 212°F (100°C),
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and Studs for General Use
1.1.2 Class 2—Condensate water,
F 468M Specification for Nonferrous Bolts, Hex Cap
1.1.3 Class 3—Freshwater except Classes 1 and 2,
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Screws, and Studs for General Use
1.1.4 Class 4—Seawater in which total head produced per
F 1511 Specification for Mechanical Seals for Shipboard
stage does not exceed 50 psi (345 kPa),
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Pump Applications
1.1.5 Class 5—Seawater in which total head produced per
2.2 ANSI Standards:
stage exceeds 50 psi (345 kPa), and
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B1 ISO Metric Screw Threads (ANSI-B1 Report)
1.1.6 Class 6—Hydrocarbon pumps (less than 1500 SSU).
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B1.1 Unified Screw Threads
1.2 The values stated in inch-pound units are to be regarded
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B16.1 Cast Iron Pipe Flanges and Flange Fittings
as the standard. The values given in parentheses are provided
B16.5 Steel Pipe Flanges, Flanged Valves and Fittings, 150,
for information purposes only.
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300, 400, 600, 900, 1500 and 2500 lb.
2. Referenced Documents
B16.11 Forged Steel Fittings, Socket Welding and
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Threaded
2.1 ASTM Standards:
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B16.24 Bronze Flanges and Flanged Fittings, 150, 300lb
A 193/A 193M Specification for Alloy-Steel and Stainless
2
2.3 Hydraulic Institute Standards:
Steel Bolting Materials for High-Temperature Service
ANSI/HI 1.1-1.5 American National Standard for Centrifu-
A 216/A 216M Specification for Steel Castings, Carbon,
gal Pumps for Nomenclature, Definitions, Applications
Suitable for Fusion Welding, for High-Temperature Ser-
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3
and Operation
vice
4
ANSI/HI 1.6 American National Standard for Centrifugal
A 276 Specification for Stainless Steel Bars and Shapes
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Pump Tests
A 494/A 494M Specification for Castings, Nickel and
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ANSI/HI 9.1-9.5 American National Standard for Pumps—
Nickel Alloy
General Guidelines for Types, Definitions, Applications
A 743/A 743M Specification for Castings, Iron-Chromium,
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and Sound Measurements
Iron-Chromium-Nickel, Corrosion-Resistant, for General
3
2.4 AFBMA Standards:
Application
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5
9 Load Ratings and Fatigue Life for Ball Bearings
B 148 Specification for Aluminum-Bronze Sand Castings
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11 Load Ratings and Fatigue Life for Roller Bearings
B 164 Specification for Nickel-Copper Alloy Rod, Bar, and
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2.5 ISO Standards:
Wire
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ISO 9001 Quality Systems and Quality Assurance—Design/
B 369 Specification for Copper-Nickel Alloy Castings
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Development, Production, Installation and Service
3. Terminology
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This specification is under the jurisdiction of Committee F-25 on Ships and
3.1 Definitions:
Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery.
Current edition approved May 10, 2000. Published September 2000. Originally
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published as F 998 – 97. Last previous edition F 998 – 97. Annual Book of ASTM Standards, Vol 15.08.
2 8
Annual Book of ASTM Standards, Vol 01.01. Annual Book of ASTM Standards, Vol 01.07.
3 9
Annual Book of ASTM Standards, Vol 01.02. Available from American National Standards Institute, 11 W. 42nd St., 13th
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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 02.01. Anti-Friction Bearing Manufacturers Association, Inc., 1101 Connecticut Ave.,
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Annual Book of ASTM Standards, Vol 02.04. N.W., Suite 700, Washington, DC 20036.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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F 998
3.1.1 best effıciency point (BEP), n—the capacity and head not be recognized as a metal. Examples include plastics,
in which the pump efficiency is the highest. fiberglass resins, carbon fiber, fiberglass-reinforced vinyl ester,
polytetrafluoroethylene (PTFE), or any similar material.
3.1.2 BHP, n—power delivered to the pump from the driver
in brake horse power. 3.1.20 non-overloading power characteristics, n—this char-
acteristic requires that the driver be sized for the highest
3.1.3 capacity, n—the total volume output per un
...