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The ESAB 0366960018 Heat Shield / Gasket (18NG) is a specialized consumable component designed for the TXH 400 series of TIG welding torches. In high-amperage TIG applications, the thermal management of the torch front-end is critical. This component functions as a thermal break, positioned between the gas nozzle (cup) and the torch body. Its primary role is to minimize conductive and radiant heat transfer from the ceramic nozzle back to the torch head, thereby protecting internal components and O-rings from thermal degradation.
Beyond thermal management, this component acts as a mechanical gasket. The integrity of the shielding gas envelope relies heavily on the seals within the torch assembly. A worn, cracked, or deformed heat shield can introduce atmospheric air into the shielding gas stream (Venturi effect) or allow gas to escape before reaching the weld zone. This leads to compromised arc stability and metallurgical defects. Professional welders and maintenance technicians recognize that regular inspection and replacement of the heat shield is a standard preventative maintenance procedure for water-cooled and air-cooled TIG systems alike.
This product is supplied as a pack of 10, facilitating efficient inventory management for MRO (Maintenance, Repair, and Operations) requirements. The 18NG designation indicates its specific geometry and compatibility profile within the ESAB consumable ecosystem. Manufactured from high-grade, heat-resistant composite materials, these gaskets are built to withstand the harsh thermal cycling inherent in industrial TIG welding environments. Ensure your TXH 400 torch continues to deliver precision results by replacing the heat shield whenever wear or damage is detected.
| Additional Information |
|---|
| Brand:ESAB |
| Packaging Description:pack of 10 |
| Compatible Torch Model:TXH 400 |
| Part Type:Heat Shield, Gasket |
| Series:18NG |
| Process:TIG (GTAW) |
