The working principle of the three-piece high platform ball valve is to rotate the stem to drive the ball to rotate, so as to realize the opening or closing of the valve. When the stem is rotated 90°, the ball will also rotate 90° in the valve body, thus cutting off or connecting the flow of the medium. In the closed position, the ball is pressed against the seat by mechanical pressure from the stem, creating a seal. When opened, the stem moves in reverse, so that the ball is removed from the seat and the medium can pass through.

Structural characteristics

Three-piece design: usually composed of three main parts such as valve body, valve cover and ball, such design is easy to disassemble and maintain.
Top type structure: the valve installed on the pipeline can be directly checked and repaired online, which can effectively reduce the device parking and reduce costs.

Single seat design: eliminates the problem that the medium in the valve cavity affects the safety of use due to abnormal pressure increase.

Low torque design: Specially designed stem, just with a small handle valve can be easily opened and closed.

Wedge seal structure: enhances the sealing performance of the valve.

Self-cleaning structure of sealing surface: When the ball tilts away from the seat, the fluid in the pipeline passes 360° evenly along the sealing surface of the ball, which not only eliminates the local erosion of the high-speed fluid on the seat, but also washes away the accumulation on the sealing surface to achieve the purpose of self-cleaning.