0558004647 - ESAB Nylon Barbed Tee 3/8 Inch

Technical Overview: ESAB Nylon Tee Fitting (0558004647)

The ESAB 0558004647 is a specialized Nylon Tee Fitting designed for the maintenance and repair of fluid distribution systems within industrial welding and plasma cutting equipment. Manufactured to strict OEM specifications, this component ensures dimensional accuracy and material compatibility with ESAB cooling units and gas delivery manifolds. The fitting is constructed from high-grade nylon, a thermoplastic chosen for its balance of mechanical strength, thermal stability, and resistance to common industrial chemicals, including ethylene glycol-based coolants and shielding gases.

Geometrically, the component features a standard T-configuration with three identical connection points. Each arm of the tee terminates in a 3/8-inch barb, engineered to create a secure interference fit with 3/8-inch internal diameter (ID) flexible tubing. The barbed profile is designed to grip the inner wall of the hose, preventing pull-out under the operating pressures typical of recirculating water coolers and low-pressure gas lines. While the barbs provide significant retention force, the use of external hose clamps (sold separately) is recommended to ensure a leak-proof seal in pressurized applications.

This fitting serves as a critical junction point in fluid circuits, allowing for the bifurcation of flow or the merging of two streams into one. Its non-metallic construction eliminates the risk of galvanic corrosion often associated with mixed-metal cooling loops, thereby extending the service life of the overall system. As a genuine ESAB spare part, it is the preferred replacement for damaged or degraded fittings in ESAB power sources, ensuring that flow rates and pressure drops remain within design parameters.

Installation requires verifying the condition of the connecting hoses; hardened or cracked tubing should be trimmed or replaced to ensure a proper seal against the nylon barbs. This component is essential for technicians performing preventative maintenance or emergency repairs on liquid-cooled welding torches and plasma cutting machines.