First, the introduction of fixed ball valve

The fixed ball valve is a new generation of high performance ball valve. It is suitable for long-distance pipelines and general industrial pipelines. Its strength, safety and harsh environment are specially designed for various corrosive and non-corrosive media. Compared with the floating ball valve, when working, the force generated by the pre-valve fluid pressure on the ball is transmitted to the bearing, and the ball is not moved to the valve seat, so the valve seat does not withstand excessive pressure, so the fixed ball valve The torque is small, the valve seat is small in deformation, the sealing performance is stable, and the service life is long.

Second, the fixed ball valve overview

The fixed ball valve has two-piece and three-piece valve body structure. The middle flange is bolted. 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 is close to the ball. Keep it sealed. There is no PTFE bearing 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 position of the ball and the sealing ring. Full bore: The valve flow orifice is the same as the inner diameter of the line for the pipeline to be cleaned.

Third, the characteristics of fixed ball valve

1. It adopts the cylindrical spring or wave spring preloaded sturdy movable metal valve seat structure. The design of the sealing pre-tightening force is reasonable, the closure is flexible, and the reliability of the seal is effectively guaranteed.
2. The valve stem with special structural device not only ensures leakage 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), the structure of the medium such as slurry, so that the ball valve wear and high temperature performance is better.
4, it has a fire and anti-static function.
5. The ball valve of this structure should be used in accordance with the regulations.

Third, fixed ball valve technical specifications: