Check valve is a valve referred to the opening and closing parts for the circular disc and by its own weight and medium pressure to block the media flow back.   It belongs to automatic valve class, also known as check valve, check valve, return valve or isolation valve. Disc movement is divided into lifting type and swing type. Lift check valves are similar in construction to globe valves except for the lack of a stem to drive the disc. The medium flows from the inlet end (the lower side) and flows from the outlet end (the upper side). The valve ...

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Weidouli Control Ball Valves contain an On-off control ball valve(O type ball design) and a Control Segment ball valve(V type ball design).   The on-off control ball valve is evolved from plug valve, the opening and closing parts is a ball, using the ball goes around the axis of the stem 90 degrees to achieve the air of opening and closing. The on-off ball type control valve is mainly used for cutting, rolling, distributing, and changing the flow direction of the medium in the pipeline.   Control Segment Ball Valve is designed as V-shaped ball openings, having good flow controllability. Segment ...

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Ball valves are used to cut off or connect the medium in the pipeline, as well as to regulate and control the fluid. As a professional manufacturer of customized valves, we can provide you with all kinds of floating and trunnion mounted ball valves.   Hand ball valve mainly feature compact structure and reliable sealing. The sealing surface and spherical surface are often closed, which means it's not easy to be eroded by medium and easy to operate and maintain. Weidouli is a professional manual ball valve manufacturer and valve manufacturing company that has different types of ball valves for sale. ...

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