Trunnion mounted designs for forged steel trunnion mounted ball valve is available for over 2" size and are generally used for higher pressure. Three pieces body, blow-out proof stem, antistatic device, fire-safe designed and certified, double block and bleed, self relieving. Execution could be full bore or reduced bore, and materials can be carbon steel, stainless steel, special alloys resilient or metal seated
These have the ball mounted on trunnions supported in body bearings above and below the ball. sealing is achieved by spring loaded piston type seats which shut off flow when line pressure acts on the upstream seat. This design provides automatic rilief of cavity overpressure.
Features:
1: Three Pieces Forged Steel Body;
2: Trunnion Mounted Ball type;
3: Full & Reduced Bore types;
4: Anti-Static device design;
5: Blow-out proof stem design;
6: Double Block and Bleed, DBB design;
7: Fire Safe Design
8: With vent valve & drain valve;
9: Lifting lugs & supporting feet for 8" & Larger sizes.
