WES132 - Oxygen Regulator Adaptor 1/8 NPT to A-Size Fitting

Technical Overview of the Western Enterprises 132 Regulator Outlet Bushing

The Western Enterprises 132 is a specialized regulator outlet bushing designed to facilitate the interface between standard piping threads and specific compressed gas equipment connections. This component is precision-machined from high-grade brass, a material selected for its excellent machinability, corrosion resistance, and non-sparking properties, which are critical for safety in oxygen-enriched environments. The unit functions as an adaptor, converting a 1/8-inch National Pipe Taper (NPT) male thread on the inlet side to an A-Size 3/8-inch-24 Unified Fine (UNF) male thread on the outlet side.

Engineered specifically for Oxygen gas service, this bushing adheres to the Compressed Gas Association (CGA) 020 standard. The outlet threads are Right Hand (RH), a standard safety convention used to distinguish oxygen and inert gas connections from fuel gas connections (which typically utilize left-hand threads). This mechanical distinction is vital in industrial settings to prevent the accidental cross-connection of incompatible gases, thereby mitigating the risk of fire or explosion. The bushing is rated for a maximum working pressure of 200 PSIG, making it suitable for a variety of low-to-medium pressure regulation applications in welding, laboratory, and industrial gas distribution systems.

Physically, the component features a compact form factor with a length of 1.194 inches and is machined from 1/2-inch round stock. The 1/8" NPT male thread is tapered to create a tight seal when installed into regulator bodies, manifolds, or rigid piping, while the straight 3/8"-24 UNF threads on the outlet are designed to mate with standard A-Size hose nuts or equipment fittings. As a product manufactured in the United States, it meets rigorous quality control standards, ensuring consistent thread geometry and structural integrity. This part is widely utilized in industries ranging from general welding and fabrication to jewelry manufacturing and laboratory analysis.