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ASTM F1793-97(2010)

Historical Reaffirmation

Standard Specification for Automatic Shut-Off Valves (Also Known as Excess Flow Valves, EFV) for Air or Nitrogen Service

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1.1 This specification covers self-contained automatic shut-off valves (also known as excess flow valves) for air or nitrogen service. They are intended to be installed as safety devices to quickly and automatically shut off flow under certain excess flow conditions caused by a downstream failure or casualty, such as a hose rupture.

1.2 The values stated in this specification in inch-pound units are to be regarded as the standard. The SI equivalents shown in parentheses are provided for information only.


This specification covers self-contained automatic shutoff valves (also known as excess flow valves) for air or nitrogen service. They are intended to be installed as safety devices to quickly and automatically shut off flow under certain excess flow conditions caused by a downstream failure or casualty, such as a hose rupture. Automatic shut-off valves shall be of the following types, styles, sizes, pressure ratings, and end connections: Types I and II; Styles 1 and 2. Each automatic shut-off valve must pass the following tests: visual examination; hydrostatic shell test; seal tightness test; external leakage test; and set-point test.


SDO ASTM: ASTM International
Document Number F1793
Publication Date May 1, 2010
Language en - English
Page Count 7
Revision Level 97(2010)
Supercedes
Committee F25.11
Publish Date Document Id Type View
Sept. 1, 2016 F1793-97R16E01 Revision
Jan. 1, 1997 F1793-97 Revision
Jan. 1, 2021 F1793-97R21 Reaffirmation
May 1, 2010 F1793-97R10 Reaffirmation
May 1, 2004 F1793-97R04 Reaffirmation