Ball-seal poppet, soft-seal poppet or dual-seal ball check valves are available with working pressures up to 60000 psig (4134 bar) and a nominal cracking pressure of 15 psi (1.0 bar) in 316 stainless steel with end connections 1/4 to 1 in. in size. These valves are available for sour gas applications with materials selected in accordance with NACE MR0175/ISO15156.
| Working Pressures | Up to 60000 psig (4134 bar) |
| Temperature | Up to 650°F (343°C) |
| Nominal Cracking Pressure | 15 psi (1.0 bar), optional pressures available |
| Body Material | 316 stainless steel |
| Seal Options | Ball-seal poppet—metal-to-metal seat |
| Soft-seal poppet—O-ring seat, standard material is HNBR | |
| Dual-seal ball—glass-filled PTFE seat, backed by metal-to-metal sealing | |
| End Connections | |
| Type | Swagelok medium-pressure tube fittings (soft-seal and ball-seal only), female NPT, cone and thread |
| Size | 1/4 to 3/4 in. (medium-pressure tube fitting); 1/8 to 1 in. (female NPT), 1/4 to 1 in. (cone and thread) |
