3PC Sanitary Flange Butterfly Valve (DIN) 1 Size:1"-4"& DN25-DN150 2 ... 3 Standard: 3A,DIN,SMS,ISO Stainless Steel Sanitary 3PC Flange Butterfly Valve( DIN)1) Working medium: water,gas ,oil,etc2 ... ,chemical6) Surface treatment:Ra≤0.8μm 7) Other products:flange butterfly valve,clamped butterfly valveDIN: Stainless Steel Sanitary 3PC ...