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Cash Valve Type KP Back Pressure Valves
Type KP Back Pressure Valves
A high capacity pilot operated back pressure valve that offers accurate control and dependable protection against overpressure conditions
Cash Valve Type KP Back Pressure Valves


Valve Size
NPS 2 / DN 50, NPS 1-1/4 / DN 32, NPS 1-1/2 / DN 40, NPS 1 / DN 25


  • Automatically maintains maximum pressure in a vessel or system by relieving overpressure into a lower pressure return line or to atmosphere.
  • Soft rubber seat allows tight shut-off under no-flow conditions.
  • Available with factory modifications for systems with temperatures to 400°F (204°C)* and pressure to 400 psig (27.6 barg).
  • Pilot system can be removed as one unit for easy servicing.
  • Choice of 15-65 psig (1-4.5 barg) and 50-200 psig (3.4-13.8 barg) adjustment ranges. Special hi-pressure range from 200-400 psig (13.8-27.6 barg) also available.
  • Maximum overpressure on standard spring ranges up to 300 psig (20.7 barg); 500 psig (34.4 barg) on hi-pressure range.


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