... ISO 5211 (3)Wall thickness: API600, BS1868 (4)Face to face (end to end): EN 558, ASME B16.10, DIN3202, ISO5752, JIS ... CF8M, CF8, Hastelloy (3)Stem: SS416, SS410, SS304, SS431 (4)Seat: NR, Hypalon, EPDM, Neoprene, NBR, Wear-Resistant EPDM, Viton, Silicon ... Joint type, Plain ends type Sealing: Soft sealing or metal-to-metal seat, Flexible graphite Operation: Manual, Pheunatic, Electric, Hydraulic and ...