forged trunnion ball valve

Description

FORGED TRUNNION BALL VALVE ***** ball valve feature OVIKO forged ball valve, the forging material can ensure sufficient rigidity and strength under maximum rated operation pressure without inherent flaw of cast. Enough wall thikness of separate body and adaptation of high strength tie bolts are convenient for valve maintenance and sufficient to bear the stress of ***** internal parts of valve are carefully designed and selected to ensure reliability under all kinds of work condition. 2.Anti-fire safe design When the trunnion ball valve be used normally, its sealed by seat and ball surface, seat retainer sealed by O-ring and body, this is soft sealed and reliable sealing.When the seat and O-ring are burnt, the seat retainer and body will be sealed by expanded ***** act anti-fire safe purpose. 3.Anti-static device In order to prevent friction among ball, stem and PTFE that generates static electricity which may light the combustibles and explosives that cause an accident, in this ball valve, static-conduction spring is set between the stem and the ball, the stem and the ***** static electricity is conducted to ground and system safety is secured.