Stainless Steel SMS Sanitary Pneumatic Butterfly Valve 1 Size:1"-4" 2 Material:SUS304,SUS316L 3 ... DIN,3A,SMS,ISO Sanitary Stainless Steel SMS Sanitary Pneumatic Butterfly Valve1) Media:water,oil,gas,acid,etc2) Working medium: ... ) Standard:3A,DIN,SMS,ISO4) Series Products: flange butterfly valve,weided butterfly valve,clamped butterfly valve5) Application:dairy,food,beer,beverage,pharmacy,cosmetic,wine ...