Products Details

Slow opening fast closing check valve is a special design of the valve, mainly used to prevent the medium counterflow, water hammer phenomenon, and improve the safety and reliability of the water supply system. This valve combines the triple function of electric valve, check valve and water hammer eliminator, by controlling the opening and closing speed of the valve, effectively avoiding the phenomenon of water hammer when the pump starts and stops.
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Specifically, the 300X type slow opening fast closing check valve is installed in the water supply system of the high-rise building and the water outlet of the pump, which realizes the fast opening and slow closing of the main valve through hydraulic automatic operation. When the pump starts the water supply, the valve can automatically open and close according to the pump operating procedure, reducing the flow and pressure loss. The hydraulic control system of the valve is composed of main valve, check valve, needle valve, ball valve, micro filter and pressure gauge, which is easy to operate and easy to maintain.
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In addition, according to the patent information of Wuhan Dayu Valve Co., LTD., they developed a simple structure and good control effect of slow opening slow closing check valve. Through the design of diaphragm and control room, the valve realizes the precise control of the valve opening and closing speed, and ADAPTS to the needs of different application scenarios.
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In practical applications, quick-closing check valves need to meet extremely high safety requirements, often through redundant systems. For example, the BTL 7 magnetostrictive displacement sensor integrates multiple independent measuring segments and electronic systems to provide a compact, contactless and wear free position measurement solution for large valves, ensuring fast start-up and high availability.
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In general, the slow opening fast closing check valve, through its unique design, plays an important role in the water supply system, improving the stability and safety of the system.