Introduction Of Check Valve

Check valve, also known as cut-off valve, is one of the most widely used valves. The reason why it is popular is that the friction between the sealing surfaces is small during the opening and closing process, it is more durable, the opening height is not large, and it is easy to manufacture. , easy maintenance, not only suitable for medium and low pressure, but also suitable for high pressure.

Check valves are available in most material step system software. Various forms of Check valves for various main purposes in petrochemical, power engineering, metallurgical industry, urban construction, chemical plants and other units have been developed.

Check valves are widely used, but because of the large opening and closing torque and the long structure, the nominal pipe diameter is generally limited to DN250m or less, and it can reach DN400mm, but it is necessary to pay attention to the orientation of the inlet and outlet when using it. Generally, most of the stop valve substances below DN150mm are injected from directly below the piston valve, while most of the stop valve substances above DN250m are injected from the top of the piston valve. It is caused by fully considering the closing torque of the gate valve. In order to reduce the opening or closing torque, the Check valve above 250m is generally equipped with an internal bypass valve or an external intake valve.

Check valves can also be used for flow regulation.

Hot Tags: introduction of check valve, China, suppliers, manufacturers, factory, wholesale, cheap, discount, low price, in stock, free sample,