3389 - Western Enterprises 3389 Brass Adapter - 1/4" NPT Male x 9/16"-18 RH Male

Precision Brass Adapter for Gas Systems

The Western Enterprises 3389 is a high-quality brass adapter designed to facilitate seamless connections within industrial gas systems. Engineered with precision, this fitting serves as a critical bridge between standard piping components and specialized welding equipment. Specifically, it converts a 1/4-inch National Pipe Thread (NPT) female port into a standard B-Size (9/16-inch - 18) male outlet. This configuration is essential for adapting regulators, manifolds, or machine outlets to accept standard oxygen or inert gas hoses.

Manufactured from solid brass, the 3389 adapter offers superior resistance to corrosion and mechanical stress, ensuring a long service life even in demanding industrial environments. The threads are machined to tight tolerances to ensure a secure, leak-tight seal, which is paramount when handling compressed gases. The B-Size connection features Right-Hand (RH) threads, adhering to CGA standards for oxygen and inert gases, thereby preventing accidental cross-connection with fuel gas lines (which utilize left-hand threads).

This component is widely used in the assembly of gas distribution manifolds, the repair of regulators, and the customization of welding setups. Its robust design supports standard working pressures found in oxy-fuel and inert gas welding applications. Whether you are fabricating a custom gas delivery system or simply replacing a worn outlet fitting on a regulator, the Western Enterprises 3389 provides the reliability and compatibility required for professional results.

Technical Specifications

• Material: Free-machining Brass
• Inlet Connection: 1/4" NPT Male
• Outlet Connection: 9/16"-18 RH Male (B-Size)
• Gas Compatibility: Oxygen, Argon, Helium, Nitrogen, and other inert gases
• Application: Adapting pipe threads to welding hose connections