Check Valves (IPT Series)
Ball-seal poppet, soft-seal poppet or dual-seal ball check valves are available with working pressures up to 60 000 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.
||Up to 60 000 psig (4134 bar)
||Up to 650°F (343°C)
|Nominal Cracking Pressure
||15 psi (1.0 bar), optional pressures available
||316 stainless steel
||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
|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)
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