ASTM F1139-88(2004)
(Specification)Standard Specification for Steam Traps and Drains
Standard Specification for Steam Traps and Drains
ABSTRACT
This specification provides the minimum requirements for the design, fabrication, pressure rating, marking, and testing of steam traps and drains. Hydrostatic proof test, hydrostatic production shell test, steam production shell test, air production shell test, operational check steam test, and performance characteristics test shall be performed to meet the requirements prescribed.
SCOPE
1.1 This specification provides the minimum requirements for the design, fabrication, pressure rating, marking, and testing of steam traps and drains.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following safety hazards caveat pertains only to the test method portion of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
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An American National Standard
Designation: F1139 – 88 (Reapproved 2004)
Standard Specification for
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Steam Traps and Drains
This standard is issued under the fixed designation F1139; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope SP-25 Standard Marking System for Valves, Fittings,
2 Flanges, and Unions
1.1 This specification provides the minimum requirements
SP-51 150 lb Corrosion Resisting Cast Flanges and Flanged
forthedesign,fabrication,pressurerating,marking,andtesting
Fittings
of steam traps and drains.
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2.3 ASME Standards:
1.2 The values stated in inch-pound units are to be regarded
ANSI/ASME PTC 39.1 Condensate Removal Devices for
as the standard. The values given in parentheses are for
Steam Systems
information only.
ASME Boiler and Pressure Vessel Code, Section VIII,
1.3 The following safety hazards caveat pertains only to the
Division I, Pressure Vessels
testmethodportionofthisspecification.Thisstandarddoesnot
ASME Boiler and PressureVessel Code, Section IX,W eld-
purport to address all of the safety concerns, if any, associated
ing and Brazing Qualifications
with its use. It is the responsibility of the user of this standard
to establish appropriate safety and health practices and
3. Definitions of Terms Specific to This Standard
determine the applicability of regulatory limitations prior to
3.1 cold condensate capacity (QC)—maximum mass of
use.
condensate that the steam trap/drain can discharge in1hata
2. Referenced Documents given pressure and temperature, the trap/drain being fully open
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(lb/h (kg/h)).
2.1 ANSI Standards:
3.2 drain—device having no moving parts permitting the
B16.1 Cast Iron Pipe Flanges and Flanged Fittings
discharge of fluids at a fixed or adjustable rate.
B16.3 Malleable-Iron Screwed Fittings
3.3 hot condensate capacity (QH)—maximum mass of con-
B16.4 Cast-Iron Screwed Fittings
densate that a steam trap/drain can discharge in1hata given
B16.5 Steel Pipe Flanges and Flanged Fittings
pressure and temperature (lb/h (kg/h)).
B16.11 Forged Steel Fittings Socket-Welding and Threaded
3.4 hydrostatic proof test (PTHP)—test used in determining
B16.15 Cast Bronze Screwed Fittings
maximum allowable pressure (PMA) and maximum allowable
B16.18 Cast Bronze Solder-Joint Pressure Fittings
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temperature (TMA) (lb/in. (kg/mm )).
B16.22 Wrought Copper and Bronze Solder-Joint Pressure
3.5 maximum allowable pressure (PMA)—maximum pres-
Fittings
sure that the shell of the steam trap/drain can withstand
B16.24 Bronze Flanges and Flanged Fittings
2 2
permanently at a given temperature (lb/in. (kg/mm )).
B16.34 Steel Valves, Flanged and Buttweld Ends
3.6 maximum allowable temperature (TMA)—maximum
B31.1 Power Piping
4 temperature to which the shell of the steam trap/drain can be
2.2 MSS Standards:
raised permanently (°F (°C)).
3.7 maximum differential pressure (DPMX)—maximum dif-
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This specification is under the jurisdiction of ASTM Committee F25 on Ships
ference between operating pressure and operating back pres-
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on 2 2
sure (lb/in. (kg/mm )).
Machinery and Piping Systems.
3.8 maximumoperatingbackpressure(PMOB)—maximum
Current edition approved Nov. 1, 2004. Published November 2004. Originally
approved in 1988. Last previous edition approved in 1998 as F1139 – 88 (1998). permissible pressure measured at the outlet of the steam
2 2
DOI: 10.1520/F1139-88R04.
trap/drain allowing correct functioning (lb/in. (kg/mm )).
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This specification was developed from Fluid Controls Institute Standards, 69-1
3.9 maximum operating pressure (PMO)—pressure for
Pressure Rating Standards for Steam Traps and 85-1 Standard Production Test for
which a steam trap/drain is rated by the manufacturer.
Steam Traps.
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Available from American National Standards Institute, 25 W. 43rd St., 4th
Floor, New York, NY 10036.
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AvailablefromManufacturersStandardizationSocietyoftheValveandFittings Available from American Society of Mechanical Engineers, Three Park Ave.,
Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602. New York, NY 10016-5990.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F1139 – 88 (2004)
3.9.1 Discussion—This pressure is normally a function of 5.1.1 The pressure ratings established under this specifica-
the limitations related to the internal mechanism of the steam tion are based upon materials of high quality produced under
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trap/drain (lb/in. (kg/mm )). regular control of chemical and
...
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