Grundfos GRUND-13B63604 Submersible Pump End 7.5 Hp 150 Gpm

Product Description

The GRUNDFOS GRUND-13B63604 is an SP Series submersible groundwater borehole pump end designed for installation in 6-inch and larger wells. This is a pump end only — no motor is included. It operates at 60 Hz on a three-phase, 440-460 volt electrical supply and delivers a 7.5 HP output with a flow rate of 150 GPM. The unit measures 4 inches in diameter, features 4 impellers, and includes a 3-inch NPT discharge connection. Licensed water well contractors and pump installers handle this type of equipment in deep-well groundwater extraction systems.

The GRUND-13B63604 is rated for residential, agricultural, and light commercial groundwater applications where wells are 6 inches or larger in diameter. The SP Series 150S75-4 configuration is suited for high-flow borehole installations requiring consistent submersible performance at depth. This pump end pairs with a compatible submersible motor — installers must source and match the motor separately to meet the HP and electrical requirements of the system.

Key Features

• 150 GPM flow rate suited for high-demand groundwater extraction
• 7.5 HP rating on three-phase, 440-460 volt supply at 60 Hz
• 4 impellers for staged pressure development across the pump end
• 3-inch NPT discharge connection for standard well column pipe hookup
• 4-inch diameter body fits 6-inch and larger well casings
• Pump end only — allows pairing with a separately selected submersible motor

Compatibility

Designed for installation in wells with a minimum 6-inch inside diameter. This pump end corresponds to the Grundfos SP Series model 150S75-4 and requires a compatible submersible motor matched to the 7.5 HP, three-phase, 440-460 volt electrical specifications.

Installation Notes

Installation must be performed by a licensed water well contractor or pump installer in accordance with applicable local well codes and NFPA 70 (NEC) requirements for submersible motor wiring. De-energize and lock out the control panel before handling any wiring or lowering the pump assembly. Verify well casing inside diameter before installation to confirm clearance for the 4-inch pump body. Do not operate the pump end without a properly matched and rated submersible motor attached.