Description
The SR-26 is SunRotor’s highest-flow submersible, engineered to move serious water where lift is shallow to mid-shallow. Its multi-stage centrifugal hydraulics deliver big daily gallons from modest PV arrays, starting early and running late to maximize production over the full solar day.
Compared with helical-rotor designs, the SR-26’s stacked impellers excel when you need volume more than extreme head—think large stock tanks, storage fills, and distribution to multiple troughs. The centrifugal wet end also tolerates hard or caustic water better than rubber stators, reducing maintenance in demanding environments.
Built with stainless components and paired with an above-ground SunRotor controller, the SR-26 offers clear status indications, float/low-water inputs, and linear current boost that converts excess array voltage into pumping current. The result is predictable performance, straightforward service, and a long operating life in remote applications where uptime matters.
Product Details
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High-flow specialist: Delivers strong output in the 10–30 GPM range at shallow heads; functional lift to about 100 ft.
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Efficient with small arrays: Runs effectively from modest PV power; controller boosts current to sustain flow through changing irradiance.
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Rugged, field-friendly build: Six stainless impeller stages, integrated check valve, and a 1.5" FNPT outlet; brushless DC motor with protective oil jacket.
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Flexible power: Nominal 48 V operation with a 24–48 V usable window via the SRC-M100T controller; solar, battery, or hybrid input supported.
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Installer notes: 4" OD body fits 4.5" casings; submersion limit approximately 100 ft below static water level; above-ground electronics simplify troubleshooting.
Technical Specifications
| Category | Specification |
|---|---|
| Pump type | Multi-stage centrifugal submersible |
| Nominal operation | 48 VDC (system with controller) |
| Usable voltage range | 24–48 VDC (via SRC-M100T) |
| Recommended PV power | ≈285–1140 W (array dependent) |
| Functional lift (TDH) | Up to ~100 ft |
| Indicative flow | ~26–33 GPM at surface, array dependent |
| Stages | 6 impellers |
| Outlet | 1.5 in FNPT, integrated check valve |
| Submersion guideline | Up to ~100 ft below static water level |
| Dimensions / weight | ~4 in OD, ~21 in height, ~19.5 lb |
| Construction | Stainless body & impellers; brushless DC motor; oil-jacketed |
| Controller pairing | SRC-M100T DC input controller (solar / battery / hybrid) |
| Typical applications | High-volume tank fill, transfer, stock/wildlife water on shallow lifts |
Specs & Info