HH44X DY30AX micro resistance slow closing check valve pipeline anti backflow silent valve

Description :

This product includes two high-performance pipeline control valves, HH44X micro resistance slow closing check valve and DY30AX slow opening slow closing check valve, designed specifically to solve water hammer effects and medium backflow problems in fluid transportation systems. The HH44X series adopts a unique micro resistance design, and the valve disc structure is optimized through fluid dynamics, significantly reducing the flow resistance coefficient and ensuring minimal pressure loss when the medium passes through. It is particularly suitable for high flow, low head water supply and drainage systems. Its slow closing function is achieved through hydraulic or mechanical damping devices. When the pump stops working, the valve disc can slowly close in stages, effectively eliminating destructive water hammer caused by sudden flow rate changes and protecting the safety of the water pump and pipeline facilities.

The DY30AX slow opening and slow closing check valve further emphasizes the smoothness of the opening and closing process. This model can slowly open with the flow of the medium when opened, avoiding instantaneous impact; When closed, it also has a buffering mechanism to prevent severe vibration and noise caused by reverse flow of the medium. Both of these valves are widely used in municipal water supply, sewage treatment plants, high-rise building water supply, industrial circulating water systems, and fire protection pipelines. Its main target users include pipeline engineering contractors, water companies, equipment procurement departments of industrial enterprises, and construction and installation companies. The main body of the product is usually made of cast iron, cast steel, or stainless steel, which has good corrosion resistance and wear resistance, excellent sealing performance, long service life, and low maintenance costs. It is an indispensable key component in modern fluid control systems, which can effectively improve the stability and safety of system operation.

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