... butterfly valve Material:s.s c.s DN:2"~48". Disc: Ni-plated ductile iron, Nylon coated ductile iron, 304S. S, 316S. Body ... "to48" 10bar1)Size: DN50~DN1200 U Type Butterfly Valve. Seat: EPDM, high temperature EPDM, food ... Nylon coated ductile iron, 304S. S, 316S. Body: Cast iron, carbon steel, 304S. S, ... , 14"to48" 10barSize: DN50~DN1200 U Type Butterfly Valve. Seat: EPDM, high temperature EPDM, food grade ...