Forged steel ball valve & forged steel trunnion ball valve are good choice comopared to cast steel trunnion mounted ball valves. Forged steel trunnion mounted ball valves are designed in 3-pc body. 3-pc Forged steel trunnion mounted ball valves are a good option for high pressure working condition. 

• Upstream sealing (The upstream sealing is fulfilled by the spring pre-tightening seat to ensure the feature of self-tightness)
• Self relieving seat
• Double block and bleed
• Fire safe design
• Anti-static device
• Blow-out proof stem
• Emergency injection system for seat & stem
• Stem extension on request for cryogenic purpose
• Low emission packing design