Description
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
| Specification | Value |
|---|---|
| Pump Type | Deep Well Helical Rotor (Progressive Cavity) |
| Motor Type | Brushless DC |
| Input Voltage Range | 60 – 370V DC or Single-Phase AC |
| Power Range | 250 – 840W |
| Max Flow Rate at Surface | 12.8 GPM |
| Flow Rate at 450 ft Depth | 6.6 GPM (23 lpm) |
| Max Submersion Depth | 400 ft Below Static Water Level |
| Output Connection | 1" FNPT (Required) |
| Low Water Cutoff | Integrated |
| Motor Protection | Water-Filled Jacket |
| Height | 51.25 in (130.2 cm) |
| Diameter | 3.9 in (53mm) — Fits 4 in (57mm) Casing |
| Weight | 29.5 lbs (13.4 kg) |
| Warranty | 5 Years Total (2 Yr Full + 3 Yr Descending) |
Specs & Info