ASTM F1793-1997(2021)

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

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标准号

ASTM F1793-1997(2021)

发布日期

2021年

实施日期

废止日期

无

发布单位

US-ASTM

适用范围

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