Combination Air Valves for Sewage
Cast iron body with stainless steel float and internal components with replaceable rubber seat for drop tight shutoff.
Available for working pressures to 150 PSI.
Manufactured in size 2 to 6 inches (50 to 150 mm).
Alternate materials and higher pressures available.
Can be supplied with "back-flushing attachments" (shown) to facilitate maintenance to Combination Air Valves for Sewage.
Function and Applications
Installed at high points to allow air to be purged from pipelines and forcemains during filling opens to admit air on draining.