091071 - Miller 091071 Coolant Pump Replacement 1.5 GPM Bronze Gear

Technical Overview of the Miller 091071 Coolant Pump

The Miller 091071 is a precision-engineered coolant pump designed to serve as a direct replacement component for Miller Coolmate water cooling systems. Engineered for industrial reliability, this pump features a positive displacement rotary gear mechanism housed within a durable bronze body. The bronze construction is critical for resistance to corrosion and wear when circulating water or coolant mixtures, ensuring a long service life even under continuous duty cycles typical in heavy fabrication environments.

Technically, the pump is rated to deliver a flow rate of 1.5 gallons per minute (GPM) at a rotational speed of 1725 RPM. This specific flow characteristic is calibrated to maintain optimal thermal transfer for water-cooled TIG torches and MIG guns, preventing overheating of power cables and torch heads. The gear design provides consistent pressure and flow, which is essential for maintaining the integrity of the cooling loop and protecting valuable welding equipment from thermal damage.

Installation of the 091071 requires mechanical coupling to the cooler's motor. As an OEM part, it guarantees dimensional accuracy for mounting points and shaft alignment, eliminating the need for modifications during maintenance. It is compatible with specific legacy and current Miller cooling units that utilize a gear-driven pumping mechanism. Regular inspection of the pump's strainer and coolant quality is recommended to maximize the lifespan of the bronze gears and seals.