Since the check valve is qualitatively determined for quick closing in most practical applications, the medium is directional in the moment the check valve is closed, and the medium rapidly drops from a large reverse speed as the valve flap closes.

The driving mode of swing check valve is automatic, the connection mode can be selected from flange, clip type, welding, thread, structure can be selected with swing type, sealing structure can be selected with PTFE, PPL, hard seal, pressure range PN10~ PN160, the nominal diameter is DN15-1200mm, the material can be selected from WCB, 304, 316, alloy steel and so on.

The valve flap of the swing check valve rotates around the rotating shaft. Its fluid resistance is generally smaller than that of the lift check valve, which is suitable for larger diameter applications.

Swing-type check valves are widely used in pipeline transportation such as petrochemical, pharmaceutical, and electric power. In these systems it is often necessary to transport some oil, steam, nitric acid, and highly oxidizing media.

The swing check valve function is to prevent the medium in the pipeline from flowing backward. The valve of the opening and closing part is opened or closed by the flow of the medium and the force to prevent the back flow of the medium from being called a check valve.

Trunnion mounted ball valve body material: WCB, WC6, WC9, CF8, CF8M, CF3, CF3M, etc. The trunnion mounted American standard ball valve usually uses rubber, nylon and Teflon as the seat seal material, so its use temperature is affected by the valve seat.

Trunnion ball valve dimensions are following,include ANSI casting steel trunnion mounted ball valve,DIN casting steel trunnion mounted ball valve,ANSI forged steel trunnion mounted ball valve.

The use of trunnion mounted ball valves is very extensive and is widely known in many industrial processes. Then we should also know trunnion type ball valve maintenance so that we can work more smoothly in future operations.

The trunnion mounted ball valve is a high-performance ball valve suitable for various corrosive and non-corrosive media in ball valves. The trunnion mounted ball valve has low torque, stable sealing performance and long service life.

When to use a trunnion mounted ball valve ? Trunnion mounted ball valves are suit for following working conditions.