Swagelok 316-QC8-KEY-1 Quick Connect Fitting

Swagelok 316-QC8-KEY-1 Quick Connect Fitting is a QC8-series quick-connect component featuring a 316 stainless steel body designed for frequent, make-and-break connections in instrumentation and process lines. The KEY-1 designation indicates a Black keyed configuration (Key Number K1) that mates only with matching sleeves to help prevent cross-connections in multi-point systems. This part uses a 1/2 in. Swagelok tube connection, aligning with other QC8 bodies and stems in the family for consistent interchangeability. Built from 316 stainless steel, it offers corrosion resistance suitable for demanding environments, and its quick-connect design minimizes air inclusion and spillage during connecting and disconnecting. Typical applications include instrumentation lines, gas sampling, calibration rigs, and other setups where rapid, reliable reseating is required and correct keying is essential to maintain system integrity. As part of Swagelok’s QC8 lineup, it shares compatibility with the broader QC8 ecosystem of stems and bodies, enabling flexible configurations across the same keying system.