SS316L Wafer Butterfly Valve NO. Part name Material 1 Body SS316, SS316L 2 Disc ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462 3 Seat EPDM,NBR,FRM.PTFE 4 Stem SS420,SS431 5 Lower Stem SS420,SS431 6 Retailner Nylon for DN50 to DN300, SS304 for DN350 to DN2000 7 Bearing RPTFE with Graphite 8 Weather seal NBR 9 […]