3" 4" DC Screw Solar Pump
High-Head Deep Well
High-head 3-inch and 4-inch screw-type DC solar pumps engineered for the deepest wells. Helical rotor design provides steady flow and excellent sand-handling capability.
Find The Right Model
Filter by your required flow and head to find matching pump models.
Model Specifications (16 models)
| Model | Power | Voltage | Max Flow | Max Head | Outlet | Panels | |
|---|---|---|---|---|---|---|---|
| 3PWSS1.0-55-24-180 | 180W | 24V | 1 m³/h | 55 m | 1" | 1 × 200W | |
| 3PWSS1.0-80-48-250 | 250W | 48V | 1 m³/h | 80 m | 1" | 2 × 150W | |
| 3PWSS1.5-65-48-400 | 400W | 48V | 1.5 m³/h | 65 m | 1" | 2 × 250W | |
| 3PWSS1.5-100-72-600 | 600W | 72V | 1.5 m³/h | 100 m | 1" | 3 × 250W | |
| 3PWSS1.5-130-96-750 | 750W | 96V | 1.5 m³/h | 130 m | 1" | 4 × 250W | |
| 3PWSS1.5-65-24-400-LV | 400W | 24V | 1.5 m³/h | 65 m | 1" | 2 × 250W | |
| 3PWSS1.5-95-48-400-LV | 400W | 48V | 1.5 m³/h | 95 m | 1" | 2 × 250W | |
| 4PWSS2.0-40-24-250 | 250W | 24V | 2 m³/h | 40 m | 1" | 2 × 150W | |
| 4PWSS2.0-70-48-400 | 400W | 48V | 2 m³/h | 70 m | 1" | 2 × 250W |
Model Details
- Power
- 400W
- Voltage
- 48V
- Max Flow
- 1.5 m³/h
- Max Head
- 65 m
- Outlet
- 1"
- Panels
- 2 × 250W
- Diameter
- 3"-4"
- Impeller
- screw
Performance Curve
Theoretical H-Q curve. Actual performance depends on installation and operating conditions.
Key Features
Typical Applications
Deep Boreholes
Community Water Supply
Agricultural Irrigation
Mountain Water Transfer
Industrial Water Supply
Frequently Asked Questions
What is the maximum well depth this pump can handle?
This series can handle up to 110m total dynamic head. The actual well depth depends on the water level and required pressure at the surface.
Can it run without batteries?
Yes, all our solar pumps can run directly from solar panels through the MPPT controller without batteries. For AC/DC models, grid power can be used as backup.
How many solar panels do I need?
Panel requirements vary by model from 1 × 200W to 4 × 250W. Check the specifications table for your selected model.
What is the warranty period?
Standard warranty is 2-3 years depending on the model and market. Extended warranty options are available for volume orders.
Can I get OEM branding?
Yes, ALFAGRAND offers full OEM/ODM service including custom branding, packaging, cable length, and voltage configurations.
Interested in the 3" 4" DC Screw Solar Pump?
Contact our sales team for pricing, technical specifications, and OEM options.