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ASTM F1793-97(2004)

Заменен
Standard Specification for Automatic Shut-Off Valves (Also Known as Excess Flow Valves, EFV) for Air Or Nitrogen Service — 7 стр.
Реферат

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.

Область применения

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 valves stated in this specification in inch-pounds units are to be regarded as the standard. The SI equivalent shown in parentheses are provided for information only.

ICS
23.060.01 Valves in general / Клапаны в целом
Сборник ASTM
01.07 Ships and Marine Technology (I): F670 – F1511 / Судоходные и Морские Технологии (I): F670 – F1511
Тематика
Steel--Structural, Tubes, Plate, Coated