UtilityFree Solar Centrifugal

Use Solar-Electric Power to provide 6,000 - 30,000 Gallons per Day (23,000 - 114,000 ltrs.) from shallow water sources.

Today’s solar pumps reflect ten years of development and proven performance worldwide. Solar pumps offer an economical alternative to engine-driven pumps at remote locations, where energy and maintenance costs are high.

The Solar Centrifugal Pump can lift water from a shallow well, river or stream, lake, pond, tank or ditch. It is good for irrigation, livestock watering, circulation of pond water, swimming pools, solar water heating and hydronic floor heating systems. The pump can be powered by a photovoltaic array at variable speed, or by a battery system. It has one moving part. No electronics are required.

Reading the Chart

Above each curve is the pump model number, indicating choices of 24 or 36 volts nominal; B for battery-only, PV for array-direct power.

Below each curve is the power required (watts) at the point indicated.

Capacity

• Total Lift = Vertical distance from surface of the water source to the pipe outlet or top of storage tank.
• Suction capacity 10 vertical feet (3m) at sea level; subtract 1 foot for every 1,000 ft. elevation (1m per 1000m). For best reliability, minimize or eliminate suction lift by placing the pump close to the water source.)

Power System Requirement

• Chart indicates power (watts) required at the pump. For a non-battery system, the rated power of the PV array must exceed this number by 25% or more. A solar tracker is recommended to maintain full performance through the day.
• A PV-direct system (using a tank to store water) is simpler than a battery system, and generally preferred for reliability.

Options

• Foot Valve 1-1/4'' (required if pump is placed higher than water source)
• Float Switch #FS-SSU for full-tank shut-off
• Float Switch #FS-SSD for low-source shut-off (prevents dry run damage)

Fittings (female pipe thread)

• Intake: 1-1/4 inch
• Outlet: 1 inch

Dimensions (approximate)

• Diameter 7in (8 cm)
• Length 19 in (48 cm)
• Weight 50 lbs (23kg)

Construction

• Cast iron body
• Bronze impeller
• Ball bearing permanent magnet DC motor

Warranty

• 1 year against defects in materials and workmanship