Being based on quality, strengthening management, continuous improvement, and customer first.
Performance: 1. The allowable tolerance of the set pressure:≤±3% of the set pressure. 2. Overpressure:≤±10% of the set pressure. 3. Blowdown:≤±10% of the set pressure. 4. Tightness: The valves have good seat tightness, conforms to API STD 527.
Features: 1. The soft seat design provides good seat tightness before and after each relief cycle. 2. The system can be operated nearer set pressure without valve leakage. 3. No more overpressure required for full lift of main valve. 4. Proper valve operation and lift are unaffected by back pressure. 5. Adjustable blowdown. 6. Non-flowing pilot reduces product loss and environment pollution. 7. Quick simple verfication of set pressure while valve remains in service.