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Aquatec SWP-4000 Solar Diaphragm Pump
SWP-4000 P/M/C

Aquatec SWP-4000 Solar Diaphragm Pump & Controller


Aquatec SWP submersible pumps are designed to supply water in off-grid locations for homes, irrigation, livestock, ponds, and many other applications. The SWP-4000 4" positive-displacement submersible deep well diaphragm pumps are constructed with high-grade materials that are all potable water safe. The SWP pumps are designed to operate from any 12-30 VDC power source, including 60 cell modules or 72 cell modules or arrays (using the paired Aquatec 30V 250W Solar Pump Controller to limit the voltage input to the pump to 30Vdc maximum), or 12VDC or 24VDC battery banks.

The Aquatec APC-30-250 is designed specifically to be an interface between a photovoltaic array, and the Aquatec SWP series submersible pumps. It is a solid-state power converter that optimizes and protects the solar well pump. The controller automatically extends pump run time by the use of current boosting, and provides protection from excessive Voltage and Current, as well as dry-running.

Made in the USA

SWP-4000 Solar Pump

• Serviceable in the field with full line of repair kits
• Potable Water Safe
• Positive Displacement 3 Chamber Diaphragm Pump
• Fits into Well Casing 4" or Larger
• Protected from Moisture Intrusion by Double O-ring Seals and Anti-Wicking Factory Installed 36" of 12 ga. Motor Leads
• Capable of Pumping Water from Depths of up to 230 feet (70 Meters)
• Designed to Operate from Any 12-30 VDC Power Source, Including 72 Cell Series Arrays, 60 or 72 Cell Modules, or 12 or 24 VDC Battery Banks
• Corrosion Resistant Stainless Steel Shell Contrustrion
• Dual-Size Stainless Steel Outlet Nipple Fits 1/2" Hose Barb Tubing (0.50" ID) or 1/2" Poly Pipe (0.625" ID)
• Built-in 50 Mesh Stainless Steel Screen Prevents Debris Intrusion
• Over-sized Eyelet for Easy Installation of Safety Line
• Warranty of 12 Months from Date of Purchase, Not to Exceed 18 Months from Date of Manufacture

APC-30-250 Solar Pump Controller

• Weather resistant housing
• Can be powered directly from either a solar panel or battery
• Low water cut-out via switchless sensing
• Over Voltage Protection (manually adjusted)
• Over Current Protection
• Maximum power point tracking (Regulation of array voltage to match pump head)
• Linear Current Boosting to match pump load requirements
• Power output adjustability for pump flow control
• System power switch
• LED status indicators for system power, pump running, low water, and over current
• Grounding terminal block
• Terminal for remote tank switch
• Terminal for optional remote status LED
• Dimensions: 6.55" x 6.13" x 3.75"


SunRotor Submersible Pump Diagram

  1. PV Panel Array
  2. Solar Module Mounting Rack
  3. Water Pipe
  4. Well Seal Assembly
  5. Low Water Sensor
  6. Submersible Pump
  7. Conduit and Wiring Harness from Controller to Well Seal
  8. Wiring Harness from Controller to Solar Modules
  9. DC Input Controller
  10. Tank Full Tethered Float Switch and Weight
  11. Anti-freeze Bleeder Valve
  12. Check Valve

If you need assistance in sizing a solar power system, you can download our solar power pumping system sizing guide, click here to request a quote, or contact us at 1-866-246-7652 and let one of our sales representatives design a custom system to meet your water pumping needs.