Description
The SunRotor SRDI-66 is a precision-engineered deep well submersible pump built for dependable solar-powered water delivery in off-grid and remote applications.
Key Features
- Integrated Controller Design: The controller is housed directly within the pump body, eliminating external control boxes and maximizing system efficiency and reliability.
- Dual-Source Input Compatibility: Accepts 60–370V DC or single-phase AC input, allowing seamless operation from solar panels, generators, or battery systems.
- Progressive Cavity Technology: Single moving part helical rotor design delivers exceptional reliability with minimal maintenance requirements over the pump's lifetime.
- Field-Replaceable Helical Rotor: The rotor can be swapped out on-site without specialized tools, dramatically reducing downtime and service costs.
- Brushless DC Motor: Eliminates brush wear, maintenance, and replacement — delivering longer service life with no routine motor servicing needed.
The SRDI-66 is purpose-built for deep well applications where system simplicity and long-term dependability are essential. At 375 feet of depth it produces a consistent 4 GPM flow rate, with a maximum submersion depth of 400 feet below the static water level. Its slim 3.9-inch diameter fits standard 4-inch well casings, making it compatible with the vast majority of existing residential and agricultural well installations.
The pump's water-filled motor jacket provides continuous thermal protection for the submersible motor, while the integrated low water cutoff automatically shuts down the system when water levels drop dangerously low — protecting the pump from dry-run damage without any additional sensors or wiring. Optional EZ Connect Generator kits and integrated float/pressure switch accessories are available for expanded system automation.
Backed by a 5-year total warranty — 2 years at full replacement cost followed by 3 years of declining coverage — the SRDI-66 represents a serious long-term investment in reliable water access. Note that the pump is not intended 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 | 6.8 GPM |
| Flow Rate at 375 ft Depth | 4 GPM (15 lpm) |
| Max Submersion Depth | 400 ft Below Static Water Level |
| Output Connection | 1-1/4" 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 Declining) |
Specs & Info