air valve


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air valve

[′er ‚valv]
(mechanical engineering)
A valve that automatically lets air out of or into a liquid-carrying pipe when the internal pressure drops below atmospheric.

air valve

A valve used to admit or discharge air from a pipeline.
References in periodicals archive ?
General exhaust (GEX) air valve. Where there is more than one GEX (see plan for quantity), rates shall be added together.
``How was he to know the air valve was there?It hadn't even been marked.''
Units feature a patented Elima-Matic[R] Air Valve System to eliminate blow-by, and deliver non-stalling, non-icing, lube-free operation.
Bladders may be permanently sealed or can instead include a welded-on or molded-in air valve. TPU bladders may be colored to match or complement the color of the rigid inserts and are easy to decorate.
Air Valves: Air-Release, Air/Vacuum and Combination, 2nd Edition