Air Release Valves—Potable Water (NSF 61 and 372 Certified)
Air & Vacuum
Air and Vacuum valves are designed to exhaust large amounts of air on system start-up and permit equally large volumes back into the system on shut-down or vacuum formation.
AL, DL, and VR Series
Pressure Air Release
Pressure Air Release Valves allow air to be continually exhausted in small amounts during the entire pumping cycle. PRVs take over when Air & Vacuum valves are closed and under pressure.
PL, P, Midget, and AR Series
These valves perform the function of both Air & Vacuum and Pressure Air Valves, permitting the application of various pressure orifice sizes for a range of air volume requirements under varying pressures.
UL, C, and Dual Series