Butterfly Valve Material of parts:
Body:GGG50/40 Ductile iron
Stem:2Cr13/SS304/SS316/Carbon Steel
Disc:Ductile Iron,SS304,SS316
Gasket:NBR,PTFE,EPDM,Teflon
Seat:NBR,EPDM,PTFE,RPTFE
Packing:NBR,PTFE,EPDM,Teflon
Handle:WORM GEAR /Handlevel for small size
Material:ASTM A536 65-45-12/Q235 Thick Press Plate