Pressure Relieving

8″ Dia HA Series

Pressure Setting 1.5 oz
Vacuum Setting 0.5 oz
Cast Iron Bolt-On or Steel
Weld-On Base

20″ Dia HC Series

Pressure Range 1.0 to 6.0 oz
Vacuum Setting of 0.5 oz
Cast Aluminum; Bolt-On Base
Std & Food Grade Gaskets

24″ Dia HH Series

Bolt-On Base
Food Grade Gasket
Vacuum Range 0.5 to 9.0 oz
Pressure Range 2.0 to 29.0 oz