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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
Performance:
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
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
