Air release valve : Solenoid valve for water : Valve actuator accessories.
Air Release Valve
(Air Release Valves) These valves are usually fitted at the highest point on a water filter to release unwanted air in a system. They can be automatic - releasing air when a set pressure has been reached, or manually controlled by a valve. Sometimes called 'ARV's or AARV's'
A valve, usually manually operated, which is used to release air from a pipe or fitting.
A check type valve having a movable closing element (e.g., a ball) with a density less than the host liquid. When the closure element is surrounded by air, the valve automatically opens and will close when it is surrounded by liquid.
100105-F-5278P-008
SEYMOUR JOHNSON AIR FORCE BASE, N.C. -- Staff Sgt. Joseph Olejniczak, (right) 4th Logistic Readiness Squadron terminal operations technician, observes Airman 1st Class Michael Tipton, 4th LRS distribution technician, as he opens the pressure release valve on a liquid oxygen tank here Jan. 5, 2010. The valve releases the oxygen that turned into a vapor from the tank to make room for more liquid oxygen. Sergeant Olejniczak hails from Santa Fe, Tenn., and Airman Tipton hails from El Paso, Texas. (U.S. Air Force photo/Airman 1st Class Rae Perry)
Valve
Bubler valve to to allow the release of excess pressure from the carboy as the juice ferments without allowing air back in.