HC41X energy-saving silence check valve is suitable for water supply and drainage pipelines. The valve disc is guided by the central axis at both ends of the inlet and outlet. It can be opened and closed flexibly. It can be installed horizontally or vertically. The valve disc is loaded by spring. Its quick closing can effectively eliminate water hammer. Its sealing performance is good and the closing is noiseless. It has the advantages of small size, light weight, small fluid resistance, fatigue resistance and long life.