DC SOLAR SUBMERSIBLE PUMP
AC/DC Solar submersible Pump
DC Solar Surface Pump
AC/DC solar surface Pump
Solar swimming Pool Pump
Built-in Controller Solar Pump
Solar Pump inverter
Pump Accessories
Mr Youkee Kong 
0102030405
Maximize Efficiency with I3SS 3-Inch Solar Borehole Pumps
2026-04-14
Table of Contents
-
Understanding the I3SS 3-Inch Solar Screw Submersible Borehole Pump (Built-in MPPT)
-
Core Advantages and Practical Value of 3-Inch Solar Screw Submersible Borehole Pumps
-
Key Impact of Built-in MPPT Controllers on Procurement Decisions
-
Practicality Comparison Across Different Application Scenarios
-
Core Evaluation Dimensions and Priority Ranking for Warehouse Bulk Procurement
-
Calculation of Procurement Costs, Operation & Maintenance Costs, and Comprehensive Benefits
-
Quality Standards, Certifications, and Supply Stability Control
-
Frequently Asked Questions (FAQs)
-
Conclusion
Understanding the I3SS 3-Inch Solar Screw Submersible Borehole Pump (Built-in MPPT)
The I3SS 3-inch solar screw submersible borehole pump is a small deep well water extraction device specially designed for areas without grid power or with weak grid power. Adopting a screw rotor structure, it is compatible with standard 3-inch boreholes. The entire unit integrates an MPPT (Maximum Power Point Tracking) controller, directly driven by solar panels without the need for an additional control cabinet, making installation and deployment simpler. It is widely used in agricultural irrigation, domestic drinking water, livestock water supply, small-scale engineering water supply, and other scenarios.
As a high-frequency selection for warehouse bulk procurement, this model balances small size, high head, low energy consumption, and high reliability. It has irreplaceable water supply value in remote areas with sufficient sunlight and is also a common configuration for overseas projects, farms, mining areas, and rural water supply projects.
Core Advantages and Practical Value of 3-Inch Solar Screw Submersible Borehole Pumps
1. Compact Structure, Compatible with Standard 3-Inch Boreholes
The 3-inch body can be directly lowered into conventional boreholes without occupying additional space, making it very friendly for the renovation of old wells and the deployment of new wells. It is suitable for warehouse stock of general-purpose models, covering most small-scale drilling water extraction needs.
2. Screw Rotor Structure, Stable Water Output with Low Flow and High Head
The screw structure excels in low-flow, high-head working conditions, with stable operation, low noise, and continuous, pulse-free water output. It is suitable for deep well water extraction and long-distance water transmission. Compared with ordinary centrifugal submersible pumps, it is more efficient in low-water, high-head scenarios.
3. DC Solar Drive, Free from Grid Restrictions
Powered by photovoltaic modules, it does not require cable laying or electricity fees, and can operate independently in off-grid areas. It works from sunrise to sunset, running automatically, which greatly reduces the initial project investment and long-term operating costs.
4. Full Submersible Design, Strong Protection and Durability
The pump body is fully submerged in water, ensuring good heat dissipation and preventing dry burning. The shell and key components are made of anti-corrosion materials, which can adapt to media such as groundwater and clean water, with a low failure rate during long-term operation. It is suitable for long-term warehouse stock and after-sales replacement.
Key Impact of Built-in MPPT Controllers on Procurement Decisions
MPPT (Maximum Power Point Tracking) is the core technology of solar water pumps. The I3SS integrates the controller into the pump body, bringing significant advantages for procurement and use:
-
Improves photoelectric conversion efficiency, resulting in higher water output under the same light conditions
-
Eliminates the need for external controllers, wiring, and installation processes, reducing labor costs
-
Reduces line losses and fault points, making the system more stable
-
Adapts to a wide voltage input, compatible with photovoltaic modules of different powers
-
Equipped with automatic protection against overload, water shortage, overvoltage, and undervoltage, extending the service life of the entire unit
For warehouse procurement, models with built-in MPPT are cost-effective one-stop options. Stocking, installation, and after-sales services are all simplified, which can effectively reduce inventory complexity and service costs.
Practicality Comparison Across Different Application Scenarios
|
Application Scenario
|
Practicality Performance
|
Adaptation Reason
|
|---|---|---|
|
Small-Scale Farm Irrigation
|
High
|
Small size, automatic operation, no grid required, suitable for scattered plots
|
|
Rural Domestic Drinking Water
|
High
|
Stable water output, clean water quality, simple maintenance
|
|
Livestock Breeding Water Supply
|
High
|
Continuous water supply, unattended operation, reduced electricity costs
|
|
Small-Scale Engineering/Construction Site Water Supply
|
Medium-High
|
Rapid deployment, easy mobility, suitable for temporary water extraction
|
|
Large-Area High-Flow Irrigation
|
Medium
|
More suitable for low-flow scenarios; multiple units can be paralleled for high flow
|
|
Deep Well High-Head Water Extraction
|
High
|
Screw structure is inherently suitable for high-head, low-flow working conditions
|
Overall, the I3SS 3-inch solar screw pump has the strongest practicality in small-scale, scattered, off-grid/weak-grid scenarios, making it the main stock model for warehouses targeting small and medium-sized projects and retail customers.
Core Evaluation Dimensions and Priority Ranking for Warehouse Bulk Procurement
Priority 1: Performance Parameter Matching (Determines Usability)
-
Whether the rated flow and head meet the well depth and water consumption of the target market
-
Matching degree between voltage range and photovoltaic modules (12V–300V wide voltage adaptation is more versatile)
-
Whether the 3-inch size conforms to local borehole standards
-
Whether the protection level, insulation level, and temperature resistance range meet environmental requirements
Priority 2: Structure and Configuration (Determines Ease of Use)
-
Built-in MPPT controller: Priority is given to integrated units to reduce installation and faults
-
Material reliability: Screw, shaft, and shell are corrosion-resistant and wear-resistant
-
Ease of wiring and installation: Suitable for rapid deployment and after-sales replacement
-
Mute, low vibration, and sand resistance: Improve service life and stability
Priority 3: Quality and Certification (Determines Marketability)
-
Passes international safety and EMC certifications such as ISO, CE, and IEC
-
Complete factory inspections, with qualification certificates and manuals
-
Stable craftsmanship, no defects such as air holes, burrs, or leakage
Priority 4: Cost and Supply (Determines Profitability)
-
Unit price, minimum order quantity, and delivery stability
-
Packaging, logistics, and warehouse space occupation
-
After-sales policy, failure repair rate, and warranty period
Priority 5: Brand and Reputation (Determines Repurchase Rate)
-
Overseas market application cases
-
Project test data and customer feedback
-
Long-term supply capacity and iteration stability
Calculation of Procurement Costs, Operation & Maintenance Costs, and Comprehensive Benefits
Warehouse procurement should not only focus on unit price but also calculate the full life cycle cost:
-
Initial Costs: Pump unit price + photovoltaic panel cost + installation labor + auxiliary materials
-
Operating Costs: Zero electricity fees, low maintenance, very few wearing parts
-
Benefits: Saves electricity fees compared to grid-powered pumps; creates water supply value in off-grid areas
-
Inventory Benefits: The 3-inch general-purpose model has fast turnover and low unsold risk
Compared with ordinary solar pumps with external controllers, models with built-in MPPT can save 15%–30% of installation costs, improve system efficiency by 10%–20%, and have a shorter comprehensive payback period, making them more friendly to both purchasers and end customers.
Quality Standards, Certifications, and Supply Stability Control
Key inspections for bulk procurement:
-
Products pass authoritative certifications such as ISO9001, CE, IEC60335, and IEC61000
-
Each unit is equipped with a factory test report, qualification certificate, and user manual
-
Craftsmanship complies with relevant standards for small submersible pumps and submersible screw pumps
-
The manufacturer has stable production capacity, and annual output, delivery time, and after-sales response meet bulk demand
Stable quality and supply are the core guarantees for warehouses to achieve long-term profits and reduce after-sales disputes.
Frequently Asked Questions (FAQs)
1. What depth of well is suitable for the 3-inch solar screw pump?
It is usually compatible with standard 3-inch boreholes with a depth range of 20–120 meters, specifically subject to the head parameters.
2. Which is more suitable for procurement and stocking: built-in MPPT or external controller?
Integrated units with built-in MPPT are more suitable for warehouse bulk procurement, with simple installation, fewer fault points, and strong versatility.
3. Can the pump work without sunlight?
It can be paired with a storage battery pack to achieve night water supply, or an AC/DC hybrid model can be selected to switch to grid power supply.
4. Can this model be used for seawater or sewage?
Not recommended. It is suitable for clean media such as groundwater, clean water, and fresh water. The anti-corrosion material can adapt to slightly mineral water quality.
5. What is the recommended minimum order quantity for warehouse stocking?
It is recommended to stock in small to medium batches and multiple times according to regional demand. The 3-inch size is a general caliber with fast turnover and low inventory pressure.
Conclusion
The I3SS 3-inch solar screw submersible borehole pump (built-in MPPT controller) is a highly practical, versatile, and cost-effective option for small-scale deep well solar water extraction, with core competitiveness in off-grid/weak-grid areas. For warehouse procurement, decisions should be made according to the priority of parameter matching > configuration practicality > quality certification > cost and supply > brand reputation. Priority should be given to models with high integration, complete certifications, stability, and reliability. This not only improves turnover efficiency but also reduces after-sales costs, meeting the stable needs of small and medium-sized water supply projects worldwide.