BIDIRECTIONAL CHECK VALVE FOR WATER HAMMER PROTECTION AND WATER SHOCK PROTECTION SYSTEM COMPRISING THE SAME

摘要

The present invention bi-directional check valve is mounted on the connecting pipe constituting the number of shock -proof system , Has a first through hole in the center , around the first through-hole diameter is smaller than the through-hole is formed at least one or more second valve body ; Being hinged to the valve body to open and close the first through- hole formed in the valve body , comprises a disc through-hole is formed so that the water can flow in the central pipe to the water flows in the forward direction within the disk is opened, to flow in the reverse direction when closed, the water can provide a shock-resistant system that includes the second through impact action can be allowed to flow through the bi-directional check valve and preventing ball which is formed in the through ball and the valve body of the disc . ;