The noise-reducing check valve is suitable for drainage pipes. The valve disc is guided by the central axes at both the inlet and outlet ends, allowing for flexible opening and closing. It can be installed horizontally or vertically. The valve disc is loaded by an air spring, which enables rapid closure and effectively eliminates water hammer. It has good sealing performance and no noise during closure. It has the advantages of small size, light weight, low fluid resistance, fatigue resistance, and long service life.
Performance features: The inner cavity of the valve body adopts a streamlined design. The flow rate is designed at 100%, reducing sharp bends, corners, and sharp protrusions, thereby reducing the resistance of the fluid. The valve disc is designed with a conical shape both at the front and back, which significantly reduces the fluid resistance and reduces the noise generated by the flow factors. The closing stroke of the valve disc is short, only 1/4 of the nominal diameter, which reduces the closing time of the valve disc and reduces the occurrence of water hammer.
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