Sanitary Stainless Steel U-Type Three-Way Diaphragm Valve Product Description Diaphram valve is a series of sanitary diapgram valve ,it is widely used on wine,dairy products,beverage,foodstuff industry,pharmacy etc.achieving the requirement of control and open/close for the pipeline system. Work principle: The diaphragm is close under normal state,and that moment the diaphragm clung tho the valve body cavity ,and closing off the flow path through the pipeline .When the diaphragm valve have the requirment to clean or open . the valve stem moves upwards according to th…