How To Maintain The Sealing Of Stainless Steel Ball Valve?

In order to ensure the sealing performance of 2 Piece Ball Valve when the working pressure of the medium is low, a certain pre-tightening pressure ratio must be formed between the ball and the sealing seat. In the rigid sealing seat, the reliability and service life of the stainless steel ball valve; the pre-compression amount of the sealing seat is correctly selected. In order to ensure the sealing performance of the stainless steel ball valve when the working pressure of the medium is low, a certain pre-tightening pressure ratio must be formed between the ball and the sealing seat.

In the rigid sealing seat, the reliability and service life of the stainless steel ball valve; the pre-compression amount of the sealing seat is correctly selected. Insufficient pre-compression cannot guarantee the low-pressure sealing performance of the ball valve: excessive pre-compression will increase the friction torque between the ball and the sealing seat, affecting the operating performance of the stainless steel ball valve; and may cause plastic deformation of the sealing seat, resulting in sealing failure. For the polytetrafluoroethylene sealing seat, the pre-tightening pressure ratio should generally be 0.1PN, and not less than 1.02MPa.