(1)Certification:CHC hitech,CE,ISO (2)Material:SS304,316,316L (3)Size:DN8-100mm; (4)Standard:GB,DIN,ISO,SMS The High Quality Sanitary Pneumatic Butterfly Valves have the Characteristics just as follows: Material:Carbon Steel,Stainless Steel(304,316,316L)Mudium:Water,Steam,Oil,Neutral gases,liquids,Corrosive,Acidic SubstancesConnection:Welded,Tri-clamp,Wafer,Thread Pressure:1.6,2.5MPa Diameter:DN8 ...