Swagelok B-QC4-B-2PMK1 Quick-Connect Instrumentation Valve

Swagelok B-QC4-B-2PMK1 is a brass quick-connect body from Swagelok's QC instrumentation family, designed to form fast, clean connections in analytical and process lines when paired with a compatible stem. It features a 1/8 in. male NPT port and a 0.2 Cv flow rating (0.3 Cv if coupled with a DESO or SESO stem), Buna N O-rings, Dow Corning 111 lubricant, and SC-10 cleaning, with an air inclusion of about 0.3 cm3. The part is rated for up to 2000 PSIG at room temperature (70 °F / 21 °C) and up to 250 PSIG at 250 °F (121 °C), and the B-QC4-B-2PMK1 suffix identifies the black-key variant (K1) within Swagelok's Quick-Connect series.