Water type silence check valves is flow-line designed and pressure loss is very little;the spring acce-lerates the valves's closing and get silence effect;metal-to-metal seating is liable and it needs small installation space.It is often installed at the outlet of pump to prevent water-hammering,water hitting and destructive impact and backward flow induced and protect the related equipments.It is widely used in feeding/draining system,fire protection,construction,heat supplying and industry system etc..
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