Swagelok SS-QF4-S-4PF Stainless Steel Full-Flow Quick-Connect

Swagelok SS-QF4-S-4PF is a stainless steel full-flow quick-connect stem without valve, crafted from 316 stainless steel and featuring a 1/4 in. female NPT threaded connection with a flow coefficient (Cv) of 1.7, enabling low-resistance transfer in instrumentation, process piping, drain, and vent lines. This stem is designed to pair with the corresponding SS-QF4-B-4PF full-flow body to form a complete quick-connect assembly within Swagelok’s QF4 family. The stem measures approximately 1.60 inches (40.6 mm) in length and provides Swagelok’s standard quick-connect interface for reliable, maintenance-friendly connections in stainless steel systems.