High Flow AC Utility Rotary Vane Pumps. With a flow rate few pumps can match. the BD310V has an open flow rate of 35 GPM with seals to pump Bio Diesel from B21 - B100. This pump provides long life. Explosion-proof UL listed dual voltage 3/4 HP motor (115 and 230 VAC)Motor has sealed bearings, heavy-duty switch and thermal overload protection Built-in junction box Cast iron pump housing with iron rotor and carbon vanes Check valve, pressure relief valve and strainer assembly, Automatic bypass valve, 2" threaded bung for tank openings. 1" Manual Nozzle 2 Year Warranty