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Parker - Relief Valves

Parker - Proporional Relief Valve (HPRV)

  • The Parker Proportional Relief Valve (HPRV) provides an automatic protection mechanism for process instrumentation systems
  • Captured moulded seat design is blow-out and chip resistant
  • Lock wire feature secures a given pressure
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Parker - RL & RH Series Relief Valves

  • In operation, when upstream pressure exceeds the force exerted by the spring on the seat, the poppet opens, permitting flow through the valve
  • This valve employs an adjustment cap for external cracking pressure adjustment. Eight different spring ranges allow greater system sensitivity

  • A low-friction coating on the poppet guide insures repeatable crack and reseal settings throughout the operating temperature range of the valve

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For more information click on the pdf image above for full specifications, call KC Controls on 01293 538940 or send us an e-mail to