KP504 - Lincoln Electric PTW-18/20 Water-Cooled TIG Torch Hook-Up Kit

Lincoln Electric KP504 Hook-Up Kit for PTW-18 and PTW-20

The Lincoln Electric KP504 Hook-Up Kit is an essential accessory assembly designed specifically for the integration of PTW-18 and PTW-20 TIG torches into a complete welding system. This kit addresses the critical need for reliable fluid and gas transfer between the welding power source, the gas regulator, and the water cooling supply. In industrial MRO and fabrication environments, ensuring the integrity of water-cooled systems is paramount to preventing torch overheating and ensuring consistent arc stability. The KP504 provides a streamlined, OEM-certified solution that mitigates the risks associated with mismatched fittings or generic hose assemblies.

Technically, the kit is engineered to bridge the connection points of standard Lincoln Electric water-cooled setups. It features two 12.5-foot (3.8-meter) hoses—one dedicated to shielding gas delivery and the other for coolant circulation. The length of these hoses offers significant operational flexibility, allowing the welder to maneuver around large workpieces without compromising the connection to the base unit. The inclusion of specific water adapter fittings and a water hose coupler ensures that the coolant loop remains sealed under pressure, preventing leaks that could damage equipment or contaminate the weld zone.

Furthermore, the KP504 kit includes a specialized power cable adapter. This component is critical for conducting the welding current from the power source to the torch head while simultaneously managing the coolant return flow, a common configuration in high-amperage TIG torches. By utilizing genuine Lincoln Electric parts, operators ensure that the electrical conductivity and thermal management properties of their equipment meet factory specifications. This kit is indispensable for maintenance departments and welding shops utilizing the PTW series torches, providing a single-SKU solution for torch installation and maintenance.

Installation of the KP504 is straightforward for qualified personnel, designed to interface directly with the standard output terminals and gas/water ports found on compatible Lincoln Electric power sources and coolers. The robust construction of the hoses resists abrasion and kinking, common hazards in industrial environments, thereby extending the service life of the torch assembly.