18NG - Weldcraft 18NG Teflon Nozzle Insulator for W-400 & WP-18SC TIG Torches (2-Pack)

Genuine Weldcraft 18NG Nozzle Insulator for High-Performance TIG Welding

The Weldcraft 18NG Nozzle Insulator is a critical component designed for heavy-duty water-cooled TIG welding applications. Specifically engineered for the W-400 (formerly WP-18SC) series torches, this insulator serves as the primary dielectric barrier between the electrically live torch body and the ceramic nozzle (cup). Manufactured from high-quality Teflon (PTFE), the 18NG offers exceptional resistance to the intense heat and high-frequency current typical of industrial TIG welding environments.

In high-amperage welding, maintaining the integrity of your torch's front end is paramount for both safety and weld quality. The 18NG insulator prevents electrical leakage and arcing that can damage the nozzle or cause arc instability. It is designed to fit standard collet body setups (non-gas lens) and ensures a tight seal that helps direct shielding gas flow efficiently. As a genuine Weldcraft product, this insulator guarantees a perfect fit with Miller and Weldcraft W-400 series torches, eliminating the guesswork associated with generic aftermarket parts.

This product is supplied as a package of two, ensuring you have a spare on hand for routine maintenance or unexpected replacements. Regular inspection and replacement of the nozzle insulator are recommended to prevent carbon tracking and deterioration, which can compromise the insulation properties over time. Whether you are welding aluminum, stainless steel, or exotic alloys, the 18NG provides the reliability professional welders demand.

Key Specifications:

• Part Number: 18NG
• Material: White Teflon (PTFE)
• Compatibility: Weldcraft W-400, WP-18SC, and compatible water-cooled torches
• Function: Electrically insulates nozzle from torch body
• Packaging: Sold as a pack of 2