This unique structure allows the dynamic air valve to discharge air from the water system in a controlled and gradual manner, thus preventing slam and local up-surges. When vacuum (down-surge) occurs, the valve reacts quickly to admit large volumesof air into the water system, thus impeding down-surges and, consequently, all pressure surges in the line. The air & vacuum component of the dynamic air valve is normally closed when the line is not operating, thus preventing the infiltration of debris and insects into the water system.

Working pressure range: 0.2-16 bar.
A unique valve, operating without a float and utilizing the rolling diaphragm principle.
Valve discharges air from the water system in a controlled and gradual manner, thus preventing slam and local up-surges.
Normally closed air & vacuum orifice prevents the intrusion of debris and contaminants into the system.
Smooth and gradual closing unaffected by water flow.
Available in sizes: 3”, 4”, 6”, 8″ and 12” with flanged ends to meet any requested standard.