... ,DIN,3A 4.3 way diaphragm valve 5.three way diaphragm Valve Feature: Sanitary three way diaphragm Valve1) Material:SS304,304L,316 ... ,316L2) Size:DN25-150&1-6" applied to the stainless steel pipeline ... , cosmetics, chemical industry,etc6) Working principle:remote-controlled operation by the driving gear or manual operation by handle.