Swagelok SS-QC4-D-4PMK2 is a 316 stainless steel instrumentation quick connect stem equipped with a valve, designed for the QC4 series. This component features a 1/4 in. male NPT end connection and is specifically identified by an orange keyed sleeve to prevent accidental intermixing in multi-line systems. With a flow coefficient (Cv) of 0.2 when coupled, it provides reliable performance for instrumentation and process applications.

DESO Stems

Swagelok quick connects are engineered for applications requiring frequent connections with minimal air inclusion and minimal spillage. The DESO (Double-End Shut-Off) design ensures that flow is restricted upon disconnection, maintaining system integrity and safety.

Technical Specifications

Feature	Specification
Body Material	316 Stainless Steel
Cleaning Process	Standard Cleaning and Packaging (SC-10)
Connection 1 Size	1/4 in.
Connection 1 Type	Male NPT
CV Maximum	0.2 (when coupled with standard/reverse flow body)
Lubricant	Dow Corning 111
O-Ring Material	Fluorocarbon FKM
Pressure Rating Coupled (Room Temp)	3000 PSIG @ 70 °F / 206 BAR @ 21 °C
Pressure Rating Coupled (Max Temp)	250 PSIG @ 400 °F / 17.2 BAR @ 204 °C
Pressure Rating Uncoupled	250 PSIG @ 70 °F / 17.2 BAR @ 21 °C
Pressure/Temp Rating (Coupling)	250 PSIG @ 70 °F / 17.2 BAR @ 21 °C
Special Sleeve	Orange Keyed Sleeve

Safety Notice

When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Do not mix or interchange Swagelok products or components with those of other manufacturers.