KP2034-5B1 - Lincoln Electric 1/8 Inch Gas Lens for 9/20 Series Torches

Precision Shielding for Critical TIG Applications

The Lincoln Electric KP2034-5B1 Gas Lens is a premium TIG welding consumable engineered to elevate the performance of your GTAW (Gas Tungsten Arc Welding) operations. Designed specifically for use with 1/8 inch (3.2 mm) tungsten electrodes, this gas lens collet body is an essential upgrade for welders seeking superior shielding gas coverage and weld quality. Unlike standard collet bodies that can create turbulent gas flow, the KP2034-5B1 utilizes a multi-layer mesh screen system to rectify the shielding gas into a coherent, laminar stream. This laminar flow is critical when welding reactive metals such as stainless steel, titanium, and aluminum, where even minor atmospheric contamination can compromise the structural integrity and aesthetic appearance of the weld.

One of the primary engineering advantages of the Lincoln KP2034-5B1 is its ability to facilitate extended tungsten stick-out. Because the gas column remains coherent for a greater distance from the nozzle, operators can extend the electrode significantly further—often up to an inch or more—without losing shielding effectiveness. This feature is indispensable for complex fabrication tasks involving deep grooves, tight corners, or obstructed joints where standard nozzle configurations would fail to provide adequate access or visibility. The component is precision-machined from high-conductivity copper and brass alloys, ensuring optimal electrical transfer and thermal management within the torch head.

This gas lens is fully compatible with industry-standard 9-series and 20-series TIG torches, including the Lincoln Electric PTA-9, PTA-20, and PTW-20 models. It replaces the standard collet body in the torch assembly and requires a compatible gas lens ceramic cup (nozzle) and insulator for proper installation. By stabilizing the arc and broadening the protective gas envelope, the KP2034-5B1 not only improves weld quality but also reduces gas consumption in certain applications by directing the flow more efficiently. Whether utilized in aerospace, motorsports, or precision industrial fabrication, this Lincoln Electric component represents a low-cost investment with high-value returns in process control and finish quality.