33033 - ESAB Bulkhead Adapter 1/4 NPT to B-Size Water

Heavy-Duty Bulkhead Fitting for Welders

Maintain the integrity of your welding equipment with the ESAB 33033 Bulkhead Adapter. This robust brass fitting is designed to bridge the gap between your machine's internal plumbing and external accessories. It is commonly used to route water cooling lines through the front or rear panel of TIG welders and water circulators, providing a sturdy anchor point for hose connections.

The adapter features a 1/4" NPT Male thread on the machine side, allowing it to screw into manifolds, valves, or internal piping. On the user-facing side, it presents a 5/8"-18 (B-Size) Water Male thread, compatible with standard water-cooled TIG torch hoses. The bulkhead design includes a shoulder that sits flush against the panel (when used with a backing nut), ensuring the fitting does not spin or loosen during hose attachment and removal.

Leaking coolant connections can lead to torch failure and costly downtime. Using genuine ESAB replacement parts like the 33033 adapter ensures that your threads match perfectly and your seals hold tight under pressure. This fitting is an indispensable spare part for maintenance departments and welding repair shops dealing with ESAB TIG equipment.

Features & Benefits

• Durable Material: Solid brass construction withstands thermal cycling and resists rust.
• Standard Fit: Connects widely used 1/4" NPT plumbing to standard B-Size welding hoses.
• Secure Mounting: Bulkhead style permits through-panel installation for a clean, organized machine build.