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介绍了一种硬密封球阀的结构,该球阀在阀座和球体间增加了螺线传动机构,阀门在启闭时,球体与阀座间无摩擦,延长了阀门的使用寿命,减小了启闭力矩。
The structure of a hard sealing ball valve is introduced. The ball valve adds a spiral transmission mechanism between the valve seat and the ball body. When the valve is opened and closed, there is no friction between the ball body and the valve seat, which prolongs the service life of the valve and reduces the opening Moment of closure.