What is the sealing principle of electric ball valve? The orientation of the sphere is fixed, and the fluid pressure cannot make it move. The valve seats are floating, and they press the ball with the help of springs or fluid quasi force to establish the sealing pressure. Therefore, the fixed ball stainless steel ball valve can plan three sealing structures according to the application requirements: front valve seat seal, rear valve seat seal, front valve seat seal and rear valve seat seal.

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