American standard flange ball valve in the pipeline is mainly used to cut off, distribute and change the direction of medium flow. Its large pivot structure ensures the accurate center position of the ball under high pressure to ensure the good operating performance of the valve; The standard valve seat adopts spring structure to push the valve seat to the ball to ensure good two-way sealing performance. Using the built-in discharge valve, the body cavity can be discharged outward; The pivot adopts anti-blowout protection structure to effectively prevent leakage; Low friction coefficient bearing, so that the torque is reduced to a small, easy to open and close the valve; The effective contact between the valve stem and the valve body makes the anti-static grounding device superior in performance.

American standard flange ball valve structural characteristics:

1, the overall structure: with full channel, emergency seal, fire and other characteristics.

2, full diameter: the diameter of the valve channel hole is consistent with the inner diameter of the pipe and diameter, but also for pipeline cleaning.

3, blocking and excretion: when the valve is closed, the upstream and downstream side of the valve seat to block the fluid, the body cavity of the accumulation of treatment can be excreted, the excretion device is as follows:

4, can check whether the valve seat leakage damage;

5, reduce the media replacement of the valve pollution;

6, under the working pressure, when the valve is fully open or fully closed, the valve stem stuffing box can be replaced.

7. Automatic pressure relief: When the stagnant medium in the valve cavity rises in temperature and there is an abnormal rise, the safety valve installed on the valve seat or valve body can automatically relieve pressure.

8, fireproof structure: the use of double seal, when a fire occurs, non-metal seat burned, the medium will press the ball on the valve body of the metal sealing surface to prevent a large number of media leakage, in line with API607 provisions.

9. Emergency sealing: When the valve seat and stem seals are damaged and cause leakage, the sealing grease injected through the grease injection valve can play an instantaneous emergency sealing role.

10. Valve stem extension: Valve stem extension is suitable for underground installation and low temperature media, and the extension size is determined according to need. Operation modes are manual, pneumatic, electric, gas-liquid linkage, hydraulic and so on.