PS/UL Pressure Sustaining\Relief Valve

Hydraulic pressure sustaining\relief valve
The valve maintains a pre-set fixed upstream pressure, regardless of downstream pressure or flow rate variations. The valve will be closed drip tight when the upstream pressure is lower than the set value.


  • UL certified Fire Pump Relief Valve
  • PN16\230psi and PN25\360psi pressure rated valves
  • Will regulate from zero to full flow with no need for additional throttling plug or by-pass valves.
  • Same low pressure losses as in the basic valve
  • Simple structure

Applicable for:

  • Water, Sea water, Foam solution or Foam concentrate