ASTM F1792-97(2010)
(Specification)Standard Specification for Special Requirements for Valves Used in Gaseous Oxygen Service
Standard Specification for Special Requirements for Valves Used in Gaseous Oxygen Service
ABSTRACT
This specification covers the special requirements for valves used in gaseous oxygen service. The pressure containing/retaining envelope, bellows, and end nipples, shall be made of nickel-copper alloy. Internal trim which is in contact with the line media shall either be made of nickel-copper alloy, bronze, nickel-aluminum-bronze, Inconel alloy 600, brass or other materials which are compatible with oxygen service. Non-metallic seat, seat insert, or seals shall be manufacture from either TFE, reinforced TFE, CTFE, plastic, polyamide, or PEEK. Materials for lubricants shall be halocarbon, Dupont, Barycote 601, or other lubricants compatible with oxygen service. Valves shall be constructed to minimize the possibility of initiating ignition in gaseous oxygen service. Valves shall be constructed to minimize oxygen escape in the event of an internal or external fire. This shall be accomplished by pressure-boundary sealing, internal seating and pressure surge. The manual valves shall be of the packless design, with the stem sealed by a bellows.
SCOPE
1.1 This specification covers the special requirements for valves used in gaseous oxygen service. It is intended that this specification be invoked as an additional requirement in conjunction with primary valve specifications.
1.2 The values stated in this specification in inch-pound units are to be regarded as the standard. The SI equivalent shown in parenthesis are provided for information only.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:F1792 −97(Reapproved 2010) An American National Standard
Standard Specification for
Special Requirements for Valves Used in Gaseous Oxygen
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Service
This standard is issued under the fixed designation F1792; 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 MIL-STD-278 Fabrication,Welding and Inspection; Casting
Inspection and Repair for Machinery, Piping and Process
1.1 This specification covers the special requirements for
Vessels in Ships of the United States Navy
valves used in gaseous oxygen service. It is intended that this
MIL-STD-271 Non-destructive Testing Requirements for
specification be invoked as an additional requirement in
Metals
conjunction with primary valve specifications.
MIL-P-46122 Plastic Molding and Extrusion Material, Poly-
1.2 The values stated in this specification in inch-pound
vinylidene Fluoride Polymer and Copolymer
units are to be regarded as the standard. The SI equivalent
shown in parenthesis are provided for information only.
3. Ordering Information
3.1 Ordering documentation for valves under this specifica-
2. Referenced Documents
tion shall include the following information, as required, to
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2.1 ASTM Standards:
describe the equipment adequately.
G63 Guide for Evaluating Nonmetallic Materials for Oxy-
3.1.1 ASTM designation and year of issue.
gen Service
3.1.2 Primary valve specification (see 1.1).
G88 Guide for Designing Systems for Oxygen Service
3.1.3 End preparations, if different than specified in 4.4.
G93 Practice for Cleaning Methods and Cleanliness Levels
3.1.4 Supplementary requirements, if any (see S1 through
for Material and Equipment Used in Oxygen-Enriched
S4).
Environments
G94 Guide for Evaluating Metals for Oxygen Service
4. Valve Design and Construction
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2.2 American National Standards Institute (ANSI):
4.1 Valvesshallincorporatethefeaturesspecifiedin4.2-4.6.
ANSI B1.1 Unified Screw Threads
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2.3 American Society of Mechanical Engineers (ASME):
4.2 Materials of Construction—Material requirements shall
ASME Boiler and Pressure Vessel Code
be as follows:
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2.4 Military Standards and Specifications: 4.2.1 The pressure containing/retaining envelope (including
MIL-STD-1330 Standard Practice for Precision Cleaning
any bolting, union nuts, or other fastening devices establishing
and Testing of Shipboard Oxygen, Helium, Helium-
the integrity of the pressure containing/retaining envelope),
Oxygen, Nitrogen, and Hydrogen Systems
bellows (where applicable), and end nipples, shall be nickel-
MIL-V-5027 Valves, Check, Oxygen, High Pressure
copper (70-30). Internal trim which is in contact with the line
media shall be nickel-copper (70-30), bronze, nickel-
aluminum-bronze, InconelAlloy 600, brass, or other materials
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This specification is under the jurisdiction of ASTM Committee F25 on Ships
which are compatible with oxygen service.
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery and Piping Systems. 4.2.2 Non-metallicseat,seatinsert,orseals.Thesematerials
Current edition approved May 1, 2010. Published June 2010. Originally
shall be selected from TFE, Reinforced TFE, CTFE, plastic in
approved in 1997. Last previous edition approved in 2004 as F1792 - 97 (2004).
accordance with MIL-P-46122, Polyamide (Vespel), or PEEK.
DOI: 10.1520/F1792-97R10.
2 The materials for O-rings and gaskets shall be compatible for
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
oxygen service.
Standards volume information, refer to the standard’s Document Summary page on
4.2.3 Lubricants—Materials for lubricants shall be halocar-
the ASTM website.
bon (25-5S), Dupont (Krytox 240AC, 240AZ), Braycote 601,
3
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
or other lubricants compatible with oxygen service.
4th Floor, New York, NY 10036, http://www.ansi.org.
4
Available from American Society of Mechanical Engineers (ASME), ASME
4.2.4 Guidance on the selection of materials for oxygen
International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
service can be found in Guides G63 and G94. Guidance on
www.asme.org.
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designing systems for oxygen service can be found in Guide
AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. G88.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F1792−97 (2010)
4.3 General R
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