Description
The SR-8 is a multi-stage centrifugal submersible pump designed for higher daily volume on shallow-to-mid lifts and for sites where hard or caustic water makes rubber stators a poor fit.
Unlike helical-rotor designs, the SR-8’s stacked impellers move generous water at modest PV input, so smaller arrays can still fill tanks quickly and keep livestock, wildlife, and remote homesteads supplied.
Stainless construction, a field-repairable wet end, and above-ground electronics (with the matched SunRotor controller) create a durable, low-maintenance system that starts early, runs late, and stays serviceable for years.
Product Details
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High daily gallons: Multi-stage impellers deliver strong flow at 50–150 ft working heads; excellent for tanks and troughs.
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Hard-water ready: Silt/caustic-resistant centrifugal chamber avoids the rotor wear common to progressive-cavity pumps.
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Flexible power: Operates from solar, battery, or hybrid input via the SunRotor DC controller to match site conditions.
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Efficient performance: Designed to produce useful flow on modest arrays and maintain output through changing irradiance.
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Installer friendly: Standard 1" FNPT outlet, clear controller wiring, and a serviceable design to minimize downtime.
Technical Specifications
| Category | Specification |
|---|---|
| Pump type | Multi-stage centrifugal submersible |
| Nominal motor voltage | 48 VDC |
| Usable voltage range | 36–48 VDC (with controller) |
| Recommended PV power | ~310–800 W |
| Maximum functional lift (TDH) | ≈250 ft (76 m) |
| Flow at 100 ft | ≈10.0 GPM with ~800 W / ~90 V PV |
| Outlet connection | 1" FNPT |
| Submersion guideline | Up to ~100 ft below static water level |
| Construction | Stainless body; silt/caustic-resistant centrifugal chamber |
| Serviceability | Readily repairable in the field |
| Typical applications | Livestock/wildlife tanks, storage transfer, cabin supply on shallow–mid lifts |
Specs & Info