... 1.Standard:ISO,DIN,IDF,3A,SMS 2.Sanitary welded butterfly valve 3.Material:SUS304,SUS316L 4.Flux domination ... of pipeline Sanitary welded butterfly valve,sanitary butterfly valve,welded butterfly valve1)Material:SUS304,SUS316L2)Standard:ISO ... of pipeline:DN25-150&1-6",applied to the stainless steel pipeline systemWorking principle:remote-controlled operation by the driving ...