NOTES ON INSTALLATION AND OPERATION OF SWING CHECK VALVES

• Posted by SLV alve 23 May 2022 - Filed in Family & Home - #Swing Check Valves  - 20 views

  (1) The material of the Swing Check Valves is refined according to domestic and foreign standards, and the overall quality is high.

  　　(2) Swing check valve seals are advanced and reasonably priced. The sealing surfaces of valve cracks and valve seats are made of iron-based alloys or strontium-cobalt alloy-based cemented carbides, which have excellent wear resistance, high temperature resistance, corrosion resistance and corrosion resistance. Excellent scratch performance and long life.

  　　(3) The swing check valve is designed and manufactured according to the national standard GB/T12235.

  　　(4) The swing check valve has a variety of pipeline flange standards and flange sealing types, which can meet different engineering needs and user requirements.

  　　(5) The material of the swing check valve body is complete, and the gasket can be reasonably selected according to the actual working conditions and user requirements, which is suitable for various pressure, temperature and medium working conditions. We can design and manufacture check valves for different structures and connections to support different equipment according to your requirements.

  　　4. Features of swing check valve and lift check valve

  　　Check valves are common in the industry and their function is to control the backflow of media. In life, there are two types of check valves. One is a swing check valve and the other is a lift check valve. The swing check valve has a hinged structure, and the valve disc rests on the valve seat. Place the disc on the hinge so that there is enough room to rotate it. A lift check valve is a valve that automatically opens and closes the disc according to the properties of the fluid. The lift check valve is an automatic valve whose main function is to prevent the backflow of the medium and the leakage of substances in the container. Its main function is to make the medium flow in the same direction and organize the backflow of the medium.

  　　(1) Compact and lightweight.

  　　(2) The lift check valve has simple structure, reliable operation and convenient maintenance, and is widely used in purification equipment, petroleum, chemical and other production operations.

  　　(3) The unique design can automatically open and close the valve to prevent fluid backflow.

  　　(4) The disc of the lift check valve is usually in the shape of a disc, which usually rotates around the center of the valve seat. In addition, since it moves vertically along the centerline of the valve body during operation, it forms streamlines in the passages inside the valve, and the flow resistance becomes very small.