A fixed ball valve is a type of valve that controls the flow of fluids by rotating a ball, which is stationary within the valve body and does not move with the pressure of the medium.

Structural Features

The sphere is fixed in the valve body by upper and lower bearings, preventing displacement due to medium pressure, and the valve seat is not subjected to excessive pressure, reducing wear on the sealing surface.

Utilizing a dual seat design, fully sealed in any direction with unrestricted installation.

Seals are typically made of PTFE material and inserted into stainless steel valve seats, with spring pre-tension ensuring sealing reliability.

Performance Advantages

Low operation torque, suitable for high-pressure, large-bore applications (nominal pressure up to 42.0 MPa).

Sealed performance is stable, with a long service life, especially suitable for corrosive media and high-temperature environments (temperature range -196℃ to 550℃).

Features a fire-resistant structure, which allows for double-sealing through a metal hard seal when the sealing ring is burned out.

Application Scenarios

Primarily used in industrial pipelines for oil and petrochemicals, natural gas transmission, electricity, water supply, etc., to achieve fluid control and cutoff functions.