Swagelok SS-8C-VCR-HS-KZ-5 Poppet Check Valve

The Swagelok SS-8C-VCR-HS-KZ-5 is a 1/2 in. stainless steel poppet check valve built for Swagelok VCR face-seal fittings, delivering reliable backflow prevention in high-purity gas and liquid lines. It features a 316 stainless steel body and a Kalrez O-ring (KZ suffix) for chemical resistance in demanding environments, with both inlet and outlet configured as 1/2 in. face-seal (metal gasket) male VCR connections. This fixed‑pressure valve belongs to Swagelok’s family designed to control backflow in general-service and high-purity applications, offering a room-temperature pressure rating up to 3000 psig (206 bar). Cracking pressure is configuration dependent; for example, the SS-8C-VCR-1 variant lists a cracking pressure of 1 psi, and the -5 suffix indicates a different specification—verify the exact cracking pressure for this exact suffix before use. Suitable for high-purity gas and liquid lines across industrial process systems, this valve combines Swagelok reliability with Kalrez-sealed integrity for demanding environments.