Pneumatic Diaphragm Valve price As a part of the valve body, the diversion weir of the pneumatic weir diaphragm valve is equivalent to the valve seat, and the diaphragm is pressed on it to intercept the flow of the medium. Diaphragm valves of this type are generally larger in size. The convex diversion weir reduces the stroke of the diaphragm valve from fully open to fully closed, customers with a positive and pragmatic attitude.Pneumatic Diaphragm Valve price website:http://www.zzvalvecn.com/diaphragm-valve/pneumatic-diaphragm-valve/