226987 - Miller 35 GPH 150 PSI Coolant Pump with Bypass

Precision Cooling for Industrial Welding

The Miller 226987 Coolant Pump is a high-performance rotary vane pump engineered specifically for the demands of industrial welding cooling systems. Maintaining the correct operating temperature of water-cooled TIG torches and MIG guns is essential for preventing equipment failure and ensuring consistent weld quality. This pump delivers a steady flow rate of 35 gallons per hour (GPH), providing the necessary volume to effectively remove heat from the torch head and power cable assembly during high-amperage applications.

Reliability is a core feature of this component, which comes factory-set to a pressure rating of 150 PSI. This pressure level is optimized to overcome the resistance found in standard torch leads and cooling passages without stressing the system's seals or hoses. A critical safety feature of this model is its integrated bypass valve. In the event of a kinked hose or a blockage in the coolant circuit, the bypass valve recirculates fluid internally, preventing dangerous pressure spikes that could damage the pump motor or cause catastrophic leaks. As a genuine Miller Electric replacement part, it ensures seamless compatibility and restores your equipment to factory specifications.