High Performance API Pilot Operated Pressure Relief Valve

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Product Description:


High Performance API Pilot Operated Pressure Relief Valve
1. High Performance
2. Competitive Price.
3. Prompt Delivery.

High Performance API Pilot Operated Pressure Relief Valve

HTXD pilot-operated safety valves are designed and manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section VIII. They are composed of a main valve and a pilot valve. The pilot valve automatically responds to the pressure change of the system media to control the open and close of the main valve. This series of safety valves suit working conditions of high back-pressure, large flowrate, high pressure, strict sealing requirements and compact installation location.

Product information:

  • Size: 1" D 2"-8" T 10"

  • Pressure:150 lb-2500 lb

  • Temperature: -29-+260°C


       The allowable tolerance of the set pressure ≤± 3% of the set pressure

       Overpressure: ≤ 10% of the set pressure

       Blowdown: ≤ 10% of the set pressure

       Tightness:The valve have good seat tightness,conforms to API Std 527

Product Feature:
  • The soft seat design provides good seat tightness before and after each relief cycle

  • The system can be  operated nearer set pressure without valve leakage

  • No more overpressure required for full lift of main valve

  • Proper valve operation and lift are unaffected by back pressure

  • Adjustable blowdown

  • Non-flowing pilot reduces product loss and environmental pollution

  • Quick simple verification of set pressure while valve remains in service

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