Non-flowing pilot valve.
Size：1"- 12".
Class：150 lb -2500 lb.
Temperature： -29 - + 260 ° C.
Codes and Standas：API527； API 526；ASME Ⅷ
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
Features
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
