Swagelok SS-4CPA2-50 Check Valve Stainless Steel

Swagelok SS-4CPA2-50 is a stainless steel, 1/4 in. MNPT poppet check valve with an adjustable cracking pressure range from 50 to 150 psi. This 1‑piece valve opens to allow forward flow when the set pressure is exceeded and seals to prevent reverse flow, providing reliable backflow protection in general-service and higher-purity fluid and gas lines. The CPA2-50 variant is designed for use with Swagelok tube fittings to ensure secure, repeatable connections in instrumentation, analytical, and process environments. Key specifications include stainless steel body construction, 1/4 in. male MNPT connections, and an adjustable pressure range of 50–150 psi, making it suitable for regulated gas and liquid applications where precise backflow control is required.