combination air valves is designed for high pressure, with the features of both an air release valve and an air & vacuum valve. The air release component is designed to automatically release small air pockets to the atmosphere as they accumulate along a pipeline or piping system when it is full and operating under pressure. The air & vacuum component is designed to automatically discharge or admit large volumes of air during the filling or draining of apipeline or piping system. This valve will open to relieve negative pressures whenever water column separation occurs.

Combines the features of both an air & vacuum valve and an air release valve. This series product supplied from ZGV are also with Triple function performance:
» Discharging large volumes of air during filling of the system.
» Admitting large volumes of air during drainage and at water column separation.
» Releasing entrapped air in pressurized systems.
» FEB coating to DIN 30677-2; Other coatings are available upon request.
» Body and cover: Cast Iron or Steel, Stainless Steel
» Corrosion- resistant wetted parts