... , BRASS,etc. 5.lever,gear,electric,pneumatic driver Stainless Steel Concentric Soft Seal Butterfly Valve with PTFE seatDN50-DN1200(2"~48") ... & inspectionMSS SP-67API609EN593 API609ISO5752 series 20BS5155 DIN PN10/16/25ANSI B 16.1BS4504ISO PN10/16JIS B 2212/2213BS 10 table DBS ... 1-45~ 150Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids,Alkalis, etc.Material List: Part Name Material ...