2013年4月27日星期六

Fixed ball valve


The ball valve is fixed, the compression is not generated after the move. Fixed ball valve with floating seat, by the media pressure, the valve seat is moved, the seal is pressed onto the ball, to ensure the sealing. Usually with a sphere on the upper and lower axis with bearings operating torque is small, the valve suitable for high pressure and large caliber.solenoid valve actuator
In order to reduce the valve operating torque and increasing the reliability of the seal, in recent years the valve seals, both in the sealing surface pressure injection of a special lubricant to form a layer of film that enhances the seal, but also reduce operating torque , more suitable for large-diameter high-pressure ball valve.shut off solenoid valve

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