WESAW-19 - Western Enterprises AW-19 Brass Nipple, B-Size x 3/8" Hose Barb

Technical Overview of the Western Enterprises AW-19 Inert Arc Nipple

The Western Enterprises AW-19 Inert Arc Nipple is a specialized pneumatic and hydraulic fitting designed for the industrial welding sector. Engineered to facilitate the connection of flexible hoses to rigid equipment ports, this component is critical for the maintenance and fabrication of shielding gas delivery systems and water cooling loops. The nipple is manufactured from high-grade brass, a material selected for its excellent machinability, corrosion resistance, and non-sparking properties, making it ideal for environments where inert gases and industrial air are present.

Technically, the AW-19 features a standard B-Size connection with 5/8"-18 UNF threads. This specific thread pitch and diameter are ubiquitous in the North American welding industry, ensuring seamless compatibility with a vast array of regulators, flowmeters, and machine gas inlets. The barbed end of the fitting is precision-turned to accommodate hoses with a 3/8-inch Inner Diameter (I.D.). The barb profile is designed to grip the inner liner of the hose effectively, providing a mechanical lock that resists pull-out forces when subjected to pressure. When secured with an appropriate ferrule or worm-gear clamp, the assembly creates a gas-tight seal capable of withstanding pressures up to 200 PSIG.

This component is designated for use with inert gases such as Argon, Helium, and Nitrogen, as well as water and industrial air. It is compatible with CGA 032 and CGA 033 connection standards, which are typically associated with inert gas service. The AW-19 does not include the connecting nut; it is the nipple stem itself, allowing technicians to pair it with the correct nut for their specific regulator or torch setup. The fitting's overall length is 2.218 inches (approximately 2 7/32"), providing ample shank length for secure clamping without compromising the flexibility of the hose assembly near the connection point.

In MRO (Maintenance, Repair, and Operations) applications, the AW-19 is indispensable. It allows for the rapid repair of severed or damaged gas lines, minimizing downtime in production environments. Furthermore, it enables the custom fabrication of hose lengths, allowing facility managers to optimize shop layouts by creating gas lines that are exactly the length required, eliminating trip hazards and reducing pressure drops associated with excessively long hoses.