Hydraulically-operated relief valve WW-73Q

diaphragm

The Bermad 700 series pressure relief valves are hydraulically operated and activated by diaphragm. The valves release excessive pressure when they rise above a pre-set value, but respond immediately to raised system pressure by opening fully. They can repeat the function with accuracy. In addition, the pressure valves provide tight drip closing. They are available in two designs, standard oblique (Y) and angle pattern design (A). They possess full-bore hydrodynamic bodies for a smooth flow path. The actuator has a united seat assembly and double chamber that can be dismantled and made into separate integral units.