41202005 - Tweco Replacement Vane Pump for TC 900 Water Coolers

Precision Cooling System Restoration

The Tweco 4120-2005 Vane Pump is a critical replacement component designed specifically for the maintenance and repair of Tweco welding water coolers, such as the TC 900 series. In high-amperage TIG and MIG welding applications, the integrity of the cooling system is paramount to maintaining process stability and protecting equipment. This rotary vane pump serves as the heart of the coolant circulation loop, providing the necessary positive displacement to drive coolant from the reservoir, through the torch lines, and back to the heat exchanger.

Engineered to meet OEM specifications, this pump ensures that the flow rate and pressure head remain within the optimal operating range for standard water-cooled torches. A failing pump often manifests as reduced flow alarms, intermittent cooling, or complete cessation of fluid movement, leading to rapid torch overheating. By replacing a worn or seized unit with this genuine-style vane pump, operators can restore the system's hydraulic efficiency. The pump features a robust housing and internal vanes crafted to withstand the continuous duty cycles common in industrial fabrication environments.

Installation of the 4120-2005 is straightforward for maintenance personnel familiar with welding auxiliary equipment. It connects directly to the cooler's motor drive and plumbing lines, ensuring a leak-free fit when installed correctly. It is compatible with standard welding coolants and low-conductivity mixtures typically used to prevent galvanic corrosion in welding loops. Regular inspection of the pump strainer and coolant quality is recommended to maximize the lifespan of this replacement unit. Whether performing preventative maintenance or an emergency repair, this vane pump provides the reliability required for precision welding operations.