Swagelok B-1RS4 Needle Valve

Swagelok B-1RS4 is a brass integral-bonnet needle valve with a straight-pattern regulating stem designed for 1/4 in. Swagelok tube fittings. It carries a flow coefficient (Cv) of 0.37 and is rated for up to 3000 psi at 100°F (BIN110). The brass body and integral bonnet provide a compact, leak-tight solution for isolating and throttling high‑pressure gas or liquid lines, with end connections sized for 1/4 in. Swagelok tube fittings to support straightforward installation. This straight-pattern valve offers precise flow adjustment through its regulating stem, making it suitable for fine throttling in instrumentation and process applications where reliable shutoff and control are required in high‑pressure systems.