Self-controlled fixed soft seal ball valve

Abstract

This utility model relates to the field of ball valve technology and discloses a self-controlled fixed soft-seal ball valve, including a right valve body, a left valve body disposed on the side wall of the right valve body, a valve stem rotatably connected inside the right valve body, a valve ball fixedly connected to the bottom of the valve stem, the valve ball being disposed inside the right valve body, a valve seat fixedly connected inside the right valve body, and a sealing assembly disposed inside the right valve body. The sealing assembly includes a sliding ring and a rubber gasket, the side wall of the rubber gasket being fixedly connected to the outer wall of the sliding ring, and the outer wall of the sliding ring being slidably connected to the inside of the valve seat. In this utility model, a spring pushes the sliding ring to slide inside the valve seat, and the elasticity makes the rubber gasket and the valve ball fit tightly together, achieving an excellent sealing effect. This solves the problem of gaps and sealing failure between the rubber gasket and the valve ball caused by long-term use or changes in operating conditions, improving the sealing reliability and stability of the valve and extending the valve's service life.

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