U type butterfly valve Material:s.s c.s DN:2"~48". Disc: Ni-plated ... "to12" 16bar, 14"to48" 10bar1)Size: DN50~DN1200 U Type Butterfly Valve. Seat: EPDM, high temperature EPDM, ... food grade EPDM, NBR, abrasive c)Shaft: 416S. Sand316S. S, 17-4pHS, aluminum bronze ... 2"to12" 16bar, 14"to48" 10barSize: DN50~DN1200 U Type Butterfly Valve. Seat: EPDM, high temperature EPDM, food ...