11N16 - ESAB 11N16 Water Adapter - 5/8-18 LH Female to 1/4 NPT Male

Reliable Connection for Industrial TIG Cooling Systems

The ESAB 11N16 Water Line Adapter is an essential component for maintaining the integrity and efficiency of water-cooled TIG welding setups. In industrial environments where high-amperage welding requires continuous cooling, the reliability of every connection in the coolant loop is paramount. This adapter is precision-engineered to bridge the gap between standard welding hose fittings and the threaded ports found on water coolers, solenoids, and recirculating systems.

Constructed from high-quality brass, the 11N16 adapter offers superior resistance to corrosion and mechanical wear. Brass is the material of choice for these applications due to its durability and ability to maintain a tight seal under the thermal cycling and pressure fluctuations common in welding operations. The adapter features a 5/8"-18 Left-Hand (LH) Female thread on one side, which is the industry standard "B-Size" connection for water hoses. This left-hand thread design is a critical safety feature, preventing the accidental cross-connection of water lines with gas lines (which typically use right-hand threads), thereby protecting both the equipment and the operator.

On the opposing side, the adapter utilizes a 1/4" NPT (National Pipe Taper) Male thread. This allows for seamless integration with a wide variety of industrial equipment, including water pumps, tank inlets, and flow switches that utilize standard pipe threading. By ensuring a secure and leak-free transition between these two distinct thread standards, the ESAB 11N16 minimizes downtime caused by coolant leaks and helps maintain optimal torch operating temperatures. Whether you are configuring a new welding station or performing maintenance on existing equipment, this adapter provides the professional-grade fit and finish expected from ESAB products.

Proper installation of the 11N16 adapter ensures consistent coolant flow, which is vital for extending the lifespan of TIG torches and consumables. By preventing overheating, operators can maintain higher duty cycles and achieve better weld quality. This small but critical fitting exemplifies ESAB's commitment to providing comprehensive solutions for the welding industry, ensuring that every part of the system, from the power source to the smallest connector, performs reliably.