Swagelok SS-QC4-B-4PFK1 Quick Connect Fitting

Swagelok SS-QC4-B-4PFK1 is a stainless steel instrumentation quick-connect body in Swagelok’s QC4 series, designed for frequent, clean connections with minimal spillage. It features a 0.2 Cv flow coefficient and a 1/4 in. female NPT port, enabling predictable flow in instrumentation loops and sampling lines. The 4PFK1 designation identifies a 1/4 in. port with a Black key, compatible with Swagelok stems and seals to form reliable quick-connect assemblies. This body serves as the core interface in fast-connect systems where rapid connection and disconnection are required without modifying the tubing, making it well suited for process instrumentation and monitoring setups.