... " 16bar, 14"to48" 10bar1)Size: DN50~DN1200 U Type Butterfly Valve. Seat: EPDM, high temperature EPDM, food grade EPDM, NBR, ... "to12" 16bar, 14"to48" 10barSize: DN50~DN1200 U Type Butterfly Valve. Seat: EPDM, high temperature EPDM, food grade EPDM, NBR, ... abrasive Shaft: 416S. Sand316S. S, 17-4pHS, aluminum bronze and monel.resistant NBR, Viton, high temperature Viton, Hypalon, Silicon ...