Ductile Iron Flanged Lifting Water Non Return Check Valve Silent

This valve disc is guided by the central axis at both ends of the inlet and outlet. It can be opened and closes flexibly. It can be installed horizontally and vertically. The valve disc is loated by spring. Its fast closing can effectively eliminate water hammer, with good sealing performance and no noise during closing. The utility model has the advantages of small volume, light weight, small fluid resistance, fatigue resistance, long service life, etc.