What is the opening and closing process of eccentric hemisphere valve?
The opening and closing process of is as follows:
Eccentric hemispherical valve is composed of valve body, eccentric shaft, valve cover, ball crown, shaft sleeve, valve seat and other parts. The valve is opened and closed by rotating the eccentric shaft. During the opening and closing process of eccentric hemisphere valve, the valve seat and ball crown will not have friction, so there will be no wear; The eccentric semi spherical valve uses an eccentric crankshaft to make the centerline of the spherical crown deviate from the centerline of the valve flow channel by an eccentric distance. When the valve is opened, the crankshaft rotates a small angle, the ball crown will leave the valve seat, and the ball crown and the valve seat will no longer contact; On the contrary, during the closing process of the valve, the ball crown only contacts the valve seat at the moment of closing.
