air release valve


Also found in: Acronyms.

air release valve

[′er ri¦lēs ‚valv]
(mechanical engineering)
A valve, usually manually operated, which is used to release air from a water pipe or fitting.

air release valve

A valve, usually manually operated, which is used to release air from a water pipe or fitting.
References in periodicals archive ?
Series ARV thermoplastic air release valves expel unwanted air from a pipeline at system start-up.
Combination air release valves with vacuum check are provided on the forcemain to remove entrapped air under pressurized conditions, which occur at lower (pressurized) elevations and during pumping conditions.