Subaru’s PTX301D diaphragm pump’s design completely isolates the pump mechanism from the fluid being moved, making the model suited for pumping abrasives, slurries, re-circulated water and other high-solid-material content as wide as 2 inches. Featuring 3-inch suction and discharge ports, the self-priming pump propels as much as 250 gallons per minute at a maximum pressure of 21 psi. It has a maximum suction lift of 25 feet and a maximum lift head of 49 feet. The PTX301D uses a high-quality silicon carbide mechanical seal and features a replaceable diaphragm. And a 7-horsepower Subaru EX21 overhead cam engine powers the diaphragm pump.
