The SunRotor SRDI-128 is a high-output deep well submersible pump engineered for demanding solar-powered water systems requiring greater flow at extreme depths.

Key Features

• High-Flow Helical Rotor Design: Delivers up to 12.8 GPM at surface and 6.6 GPM at 450 feet, making it ideal for high-demand residential and agricultural applications.
• Integrated Controller Technology: The controller is housed directly within the pump body, eliminating external components and maximizing overall system efficiency.
• Dual-Source Input Flexibility: Accepts 60–370V DC or single-phase AC input, allowing operation from solar panels, generators, or battery bank systems interchangeably.
• Field-Replaceable Helical Rotor: The rotor can be swapped on-site without specialized equipment, minimizing downtime and eliminating costly service calls for routine wear.
• Brushless DC Motor: Maintenance-free motor technology eliminates brush wear and replacement, delivering a longer and more reliable service life.

The SRDI-128 is built for installations where high flow volume and deep reach are the primary requirements. At its maximum rated depth of 450 feet it delivers 6.6 GPM, and with a 5-panel configuration it maintains strong output across the full depth range. Its slim 3.9-inch diameter fits standard 4-inch well casings, ensuring compatibility with most existing residential and commercial well infrastructure.

System protection is built in at every level — an integrated low water cutoff automatically shuts down the pump if water levels drop too low, and the water-filled motor jacket provides continuous thermal management for the submersible motor under all operating conditions. Optional EZ Connect Generator kits and integrated float/pressure switch accessories are available to expand automation and system control capabilities.

Backed by a 5-year total warranty — 2 years at full replacement cost followed by 3 years of descending coverage — the SRDI-128 is a proven long-term solution for reliable deep well water delivery. Note that this pump is not designed for continuous 24/7 operation, and battery-only system warranties are subject to modified terms.

Technical Specification