Silencer check valves are mainly suitable for water supply and drainage systems of high-rise buildings, fire pipe water supply systems, etc. This silencer check valve can effectively prevent the medium from backflowing and causing destructive water hammer, and protect the water pump and other pipeline equipment. The main performance characteristics of its valve are as follows: 1. This valve can be installed vertically or horizontally. The valve can be lifted and lowered flexibly, and it operates smoothly, has low noise, is safe, and rarely has faults. 2. Reasonable structure and good sealing performance. 3. Wear-resistant and long service life.