Micro resistance slow closing butterfly check valve HH47X HH46X soundproof energy-saving waterproof hammer

Description :

This product series includes HH47X, HH47H, HDH47X butterfly buffer check valves, as well as HH46X, HH48X, HH49X, and HH44X micro resistance slow closing butterfly check valves. It is a new type of high-efficiency check valve designed specifically for modern fluid delivery systems. This series of products is mainly installed at the outlet of the water pump to prevent medium backflow and water hammer from damaging the pipeline system.

The core advantage of the product lies in its unique micro resistance slow closing design. By using a double disc butterfly structure or a single disc swing structure (depending on the specific model), combined with a hydraulic buffer system or a heavy hammer lever mechanism, the valve can achieve two-stage action during the closing process: quickly closing most of the stroke to cut off the main backflow, and then slowly closing the remaining stroke, effectively eliminating pressure peaks and avoiding destructive water hammer. This design not only protects the water pump unit and pipeline network, but also significantly reduces operating noise and achieves silent operation.

This series of check valves has the characteristics of low flow resistance coefficient and low energy consumption. The valve plate opens flexibly, with minimal obstruction to the fluid, which helps improve the operational efficiency of the pump station and save energy. The valve body is usually made of cast iron, cast steel or stainless steel, and the sealing surface is covered with hard alloy or rubber to ensure good sealing performance and long service life.

Typical application scenarios include urban water supply and drainage systems, high-rise building water supply, industrial circulating water systems, sewage treatment plants, and pipeline engineering in fields such as electricity and chemical engineering. Especially suitable for large-diameter pipelines and occasions with high requirements for water hammer protection. The target customer groups are municipal engineering contractors, industrial equipment installation companies, water management groups, and various fluid control system integrators. The product has a compact structure, easy installation and maintenance, and occupies a small space, making it an ideal choice for modern pump station renovation and new construction design.

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