WES33 - Western Enterprises WES33 Brass Regulator Adaptor 1/4 NPT x 9/16-18 LH

Precision Brass Regulator Adaptor for Acetylene Systems

The Western Enterprises WES33 Regulator Outlet Bushing is a critical component for professional gas distribution systems, specifically designed to adapt regulator outlets to standard hose connections. Manufactured from high-quality free-cutting brass, this bushing ensures a leak-free, durable seal that withstands the rigors of industrial environments. The primary function of this adaptor is to convert a 1/4-inch Male NPT (National Pipe Taper) thread found on many regulator bodies into a B-Size 9/16"-18 Male Left-Hand thread, which is the industry standard for acetylene and other fuel gas hose connections (CGA-023).

Safety is paramount in oxy-fuel welding and cutting operations. The WES33 features left-hand threads, indicated by the notched nut (or in this case, the thread direction itself), to physically prevent the accidental connection of fuel gas lines to oxygen equipment. This "reverse" threading is a mandatory safety standard for combustible gases like acetylene, hydrogen, and propane. The 1/4" NPT side utilizes a tapered thread design that creates a tight seal by deforming the threads slightly as they are tightened, often requiring PTFE tape or pipe sealant for maximum integrity. The outlet side utilizes a parallel thread meant to seal against the gland of a hose fitting.

With a maximum pressure rating of 200 PSIG, this bushing is well within the safe operating limits for acetylene (which is unstable above 15 PSIG) and other fuel gases used in heating or cutting applications. The component features a 5/8-inch hex body, allowing for easy installation and removal with standard wrenches. Whether you are assembling a new manifold system, repairing a damaged regulator outlet, or configuring a custom gas delivery setup, the WES33 provides the reliability and precision required for safe gas management.

Key Technical Specifications:

• Inlet Connection: 1/4" Male NPT (National Pipe Taper)
• Outlet Connection: 9/16"-18 Male UNF (Unified Fine) - Left Hand
• CGA Standard: CGA-023 (Fuel Gas)
• Material: Brass
• Pressure Rating: 200 PSIG