High Performance Wafer Butterfly Valve No. Part name Material 1 Body WCB CF8M 2 Disc CF8 CF8M 3 Seat RPTFE,SS316+RPTFE,SS316 4 Shaft 17-4 PHSS,1.4462 5 Packing gland CF8 6 Bottom cover WCB,CF8M 7 Cover seal Graphite 8 Thrust washer SS316 9 Seat retainer WCB CF8M 10 Gasket RPTFE, Graphite 11 Retaining ring SS304 12 Packing […]