17 Series TIG Torch Setup for HTP America Welders

By MIG/TIG/Stick Welders & Plasma Cutters | USA Weld – HTP ... | Published: 2026-10-29

Category: How-to Guides

Learn how to install and use the 17 Series 150A air-cooled TIG torch on HTP America welders, including connection steps and common setup mistakes.

Quick Answer

Connect the 17 Series torch's 35 Dinse adapter to your HTP America welder's power terminal, then attach the gas line to the 1/4" BSP fitting. Secure the back cap and check for leaks before welding.

Why the 17 Series Torch Fits HTP America Welders

The 17 Series torch uses a 35 Dinse adapter (1/2" OD) for the power connection, which matches the output terminals on most HTP America TIG welders, including the Invertig 160DC through Revolution 2500 models. Its 150A air-cooled rating makes it suitable for light to medium-duty TIG welding without needing a water cooler, reducing setup complexity. However, if you plan to weld above 150A continuously, consider a water-cooled torch instead.

Step-by-Step Setup Process

1. Prepare the Welder: Turn off and unplug the welder. Remove any existing torch from the power terminal and gas outlet. Never connect or disconnect a torch with the welder powered on to avoid arcing.
2. Connect the Power Cable: Insert the 35 Dinse adapter into the welder's positive (+) output terminal. Twist the adapter clockwise until it locks securely. The adapter should not wobble. A loose Dinse connection can cause overheating or poor arc starts. Double-check the twist lock.
3. Attach the Gas Line: Screw the torch's 1/4" BSP gas fitting onto the welder's gas outlet. Hand-tighten, then use a wrench for an additional 1/4 turn to prevent leaks. Over-tightening can damage the fitting. Use Teflon tape on the threads if needed.
4. Install the Back Cap and Consumables: Choose a back cap that fits your tungsten length (e.g., short, medium, or long). Insert the tungsten into the collet, tighten the collet body, and screw on the back cap. Attach the gas lens or collet body, then the nozzle. Ensure the tungsten is centered in the nozzle to avoid arc wandering. Check the collet size matches the tungsten diameter.
5. Test the Gas Flow: Turn on the welder and set the gas flow to 15-20 CFH (cubic feet per hour). Open the gas valve briefly to purge air from the line. Listen for a steady hiss from the torch nozzle. If you hear sputtering or no gas, check the gas fitting tightness and the hose for kinks.
6. Perform a Test Weld: Set the welder to a low amperage (e.g., 50A) and strike an arc on scrap metal. Observe the arc stability and torch temperature after a few passes. If the torch gets hot quickly, reduce amperage or welding time; the 17 Series is air-cooled and can overheat with prolonged high-current use.

Torch Specifications

17 Series (150A) Air-Cooled Torch for HTP America® TIG Welders: 17 Series (150A) air-cooled TIG welding torch with a 35 Dinse (1/2" OD) adapter and a 1/4" BSP gas fitting. The 35 Dinse adapter ensures a direct, secure connection to HTP America welders, while the 1/4" BSP gas fitting standardizes the gas line hookup.
17 Series (150A) Air-Cooled Torch for HTP America® TIG Welders