Floating Ball Valve-Casting body

Blow-out Proof Stem

Stem is designed with collar, which will prevent stem from being blow out, when medium passes through the valve or the valve is disassembled to repair. (Fig.1)

Anti-static Device

When open and close the valve, the friction between the ball and the non-metal seat will generate static charges.To avoid static sparkle, an antistatic device is designed on the valve to derive the accumulated static from the ball.(Fig.2)                                                                    

Over Pressure

Self Relieving Seat Design

Under close position, when the cavaity pressure increased abnormally, the cavity medium will elastic squeeze-out through the up stream side seat ring, and it will prevent cavity presure over exceeding.

Fire Safe Design

The seat, stem and body joint of ball valve are with fire safe design. When non-metal materials such as O-rings, soft seats etc. And decomposed or deteriorated by fire, ball valve changes to metal to metal auxiliary seal structure, which will prevent/comtrol effectively internal leakage or external leakage.