Structural characteristics of fixed ball valve

Fixed ball valve is a new generation of high-performance ball valve, suitable for long-distance pipelines and general industrial pipelines. Its strength, safety, and harsh environment are specially considered in the design and are applicable to various corrosive and non-corrosive media. Compared with the floating ball valve, when the valve is in operation, the force produced by the fluid pressure in front of the valve on the ball is transmitted to the bearing, and the ball does not move toward the valve seat. Therefore, the valve seat cannot bear excessive pressure, so the fixed ball valve The torque is small, the seat deformation is small, the sealing performance is stable, and the service life is long.

The fixed ball valve is divided into two types of valve bodies and three blocks. The middle flange is connected with bolts. The seal is made of reinforced PTFE embedded in the stainless steel ring. There is no spring at the rear of the steel ring to ensure that the valve seat clings to the ball. Keep it sealed. There are no PTFE bearings on the upper and lower valve stems, which reduces friction and saves labor. There is no adjustment piece at the bottom of the small shaft to ensure the connection between the ball and the seal ring. Full diameter: The valve flow aperture is the same as the inside diameter of the pipeline for the pipeline cleaning.

Fixed ball valve features:

1. The movable metal seat structure is preloaded with a cylindrical spring or a wave spring. The pre-tightening force of the seal design is reasonable, and the closure is flexible, which effectively guarantees the reliability of the seal.

2. The stem of the special structural device not only ensures that leakage will occur at the filling material, but also prevents the valve stem from coming out.

3, according to the needs of users, can be designed to adapt to the dust (including solid particles), slurry and other media structure, so that ball valve wear and high temperature performance better.

4, its own fire and anti-static features.

5, the structure of the ball valve should flow in accordance with the provisions of use.