Check out SPJ High-Volume Lawn Sprinkler Pumps on F&W's website.
A SPJ15P1 Flint and Walling Pump is an American high-capacity, high-volume, self-priming lawn sprinkler pump that can be used for irrigation and other purposes. It has a cast iron pump body and mounting ring for long life, and a NEMA J, capacitor start, double ball bearing motor for continuous operation. It has a Noryl® impeller and can handle a maximum liquid temperature of 180º F. It has an American 1-1/2HP, 115/230-volt, single phase electric motor that can deliver up to 74 GPM at 20 PSI. The maximum pressure is 47PSI. It has a 2" x 1-1/2" FNPT suction and discharge ports and an easy access drain plug. It has a manufacture 1 year warranty.
SPJ, ELJ Series Centrifugal, Irrigation Pump - Owners Guide to Installation and Operation
SPJ Model Specs
Self-Priming Pump Repair Parts