... neoprene, silicone, hypalon, viton, buna n, and EPDM.Detailed description:Series lugged worm gear butterfly valveSize: Dn40-dn1200/1.5"-48 ... face: ANSI b 16.10, API 609, bs5155 short, ISO5752(series 13), DIN3202 f16Top flange: ISO 5211Normal pressure: Dn40-dn600(1.5 ...