SunRotor SR-8 - 48VDC Centrifugal Solar Pump (Submersible)

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

• High daily gallons: Multi-stage impellers deliver strong flow at 50–150 ft working heads; excellent for tanks and troughs.

• Hard-water ready: Silt/caustic-resistant centrifugal chamber avoids the rotor wear common to progressive-cavity pumps.

• Flexible power: Operates from solar, battery, or hybrid input via the SunRotor DC controller to match site conditions.

• Efficient performance: Designed to produce useful flow on modest arrays and maintain output through changing irradiance.

• Installer friendly: Standard 1" FNPT outlet, clear controller wiring, and a serviceable design to minimize downtime.

Technical Specifications