Pressure Relief Valves
The 50 Series Pressure Relief Valve is designed to maintain constant upstream pressure within close limits. In operation, the valve is actuated by line pressure through a pilot control system, opening fast to maintain steady line pressure but closing gradually to prevent surges. In addition to surge relief, this valve can be used for pressure relief, pressure sustaining, back pressure or unloading functions in a by-pass system.
50-01 & 650-01
Pressure Relief and Sustaining Valve
50-01KO
Anti-Cavitation Pressure Relief and Sustaining Valve
350-07 & 3650-07
Electronic Pressure Sustaining Control w/Manual Bypass
52-03 & 652-03
Pressure Relief and Surge Anticipator Valve
58-01 & 658-01
Back Pressure and Solenoid Shut-Off Valve
52-01 & 652-01
Pressure Relief and Surge Anticipator Valve
50-90 & 650-90
Pressure Sustaining Valve
CRL-60
Pressure Relief Valve
CRL & 55F
Pressure Relief Valve
55B-60
Pressure Relief Valve
50-05 & 650-05
Pressure Relief, Air Release and Vacuum Breaker
50-33 & 650-33
Back Pressure Shut-Off Safety Valve
750-01
Pressure Relief, Sustaining and Back Pressure Valve
250-01 & 605-01
Differential Pressure Relief Valve
550-01 & 6550-01
Pressure Relief and Sustaining Valve
552-01 & 6552-01
Pressure Relief and Surge Anticipator Valve