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MAIN FEATURES:
The trunnion ball valve is equipped with a movable seat seal ring which can generate displacement under the pressure of medium. In case that any medium pressure exists, the pressure will press the valve seat seal ring onto the ball tightly, guaranteeing the sealing performance of the ball valve.
Design Features:
1.Fireproof Structure2.Anti-static Device
3.DBB(Double Block and Bleed)
4.Low Operating Torque
5.Emergency Sealing Device
6.Safety Relief Device
7.Reliable seat sealing structure
8.Automatic Pressure Relief in Middle Cavity of Valve
9.Blow-out Proof Stem
Product Range
Body material: WCB, CF8,CF8M,CF3,CF3M etc.
Nominal diameter:1/2”~56”（DN15~DN1400）
Pressure range:Class150～900
End connection: RF, RTJ, BW
Standards:ASTM, ANSI,AWWA, JIS,BS, GHOST, DIN etc.
Cast Trunnion Ball Valve