铸钢固定式球阀

固定式球阀都带有浮动阀座，受介质压力后，阀座产生移动，使密封圈紧压在球体上， 以保证密封。通常在与球体的上、下轴上装有轴承，操作扭距小，适用于高压和大口径的阀门。

Fixed ball valve with floating seat medium pressure, seat movement, seal pressed in on the ball,to ensure the sealed. Usually in the sphere of the upper and lower shaft with bearings, smalloperation twist, suitable for high pressure and large diameter valves.