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DIFFUL Solar Well Pump Differences | Screw Pump + Plastic Impeller Pump Select According to Your Needs for Higher Efficiency

Jan 28,2026
With the widespread application of solar technology in agricultural irrigation, water supply in remote areas, and industrial auxiliary water use, the selection and adaptability of solar water pumps have become a key concern for users. Different scenarios, water quality, and head requirements correspond to different types of solar water pumps. As a solar water pump manufacturer, DIFFUL's solar well pump products cover four core categories: screw pumps, plastic impeller pumps, stainless steel impeller pumps, and high-speed pumps, fully adaptable to various deep well and shallow well water scenarios.

DIFFUL always adheres to the product development concept of 'scenario adaptability and precise empowerment.' All four types of solar water pumps are equipped with high-performance MPPT controllers, which can flexibly adapt to different sunlight conditions, achieving low-energy, stable operation. Today, we will focus on two core categories—screw pumps and plastic impeller pumps—to detail their key advantages and suitable application scenarios.

1. Solar Screw Pump: Highly adaptable, low maintenance, preferred for complex scenarios

The DIFFUL solar screw pump features a compact structure and strong adaptability as its core advantages. It adopts a combination design of a stainless steel screw and a rubber stator (screw material: SS304 + rubber), which provides excellent corrosion resistance and is not easily corroded by various media. Paired with a permanent magnet brushless motor, the motor and controller combination can achieve over 85% efficiency, which is 25% higher than traditional AC pumps. This better meets the low-power solar drive requirements and reduces energy waste. Its unique screw drive structure gives it strong self-priming ability, eliminating the need for additional priming devices, making it more convenient for drawing water from low-level sources. It can also effectively handle media with small amounts of solid particles without clogging issues, making it suitable for various complex water quality scenarios.

This type of product has low overall power consumption, requiring fewer solar panels and batteries, effectively reducing installation costs. It also has a simple structure and is easy to maintain, with a complete electrical protection and control system that provides automatic protection and recovery functions for undervoltage, overvoltage, overcurrent, overload, and lack of water. The water level can be controlled according to needs. It is easy to install, safe, and reliable, especially suitable for irrigation, farm livestock, and off-grid domestic water supply scenarios. In addition, its noise-free and pollution-free features make it widely applicable for deep well pumping, long-distance water irrigation, aquaculture oxygenation, garden fountains, farm livestock water supply, and off-grid residential water use, particularly in remote mountainous areas without grid coverage, irrigated plots, farms, and off-grid settlements.
2. Solar-Powered Plastic Impeller Pump: The Top Choice for Cost-Effectiveness, Ideal for Conventional Clean Water Applications

The DIFFUL solar-powered plastic impeller pump highlights high cost-effectiveness as its core feature, balancing both affordability and practicality. Its key advantages are prominent while keeping costs manageable, making it an excellent choice for conventional clean water scenarios. The product features a lightweight structural design, effectively reducing motor load requirements and improving water intake and discharge efficiency. It is better suited for low-power solar motor drives, achieving efficient, low-energy operation. Compared with traditional impeller pumps, it offers superior energy efficiency and maximizes the use of solar energy, further lowering long-term user costs. Additionally, the overall manufacturing cost of the product is reasonable, providing users with a cost-effective water solution that combines practicality and economy, meeting conventional clean water needs without a significant investment. It is compatible with neutral clean water and non-corrosive liquid applications.

Besides its high cost-performance ratio, the biggest advantage of this type of product is its ample water flow. Some models can reach a maximum flow of 20 cubic meters per hour, meeting the high-flow water needs of large-scale farmland irrigation, centralized water supply for small villages, orchard watering, and more, achieving the dual benefits of "low cost and high flow." At the same time, it features low power consumption and low voltage requirements, needing fewer solar panels and batteries, further reducing installation costs and enhancing its cost-effectiveness. Additionally, models that support both AC and DC can prioritize solar power use, adapting to various power supply scenarios with considerable flexibility. The overall product structure is simple and easy to operate, and the wear-resistant, sand-proof impeller design prevents the entry of sand and debris, ensuring stable performance even in water with low sand content, and reducing maintenance workload without extra maintenance costs. It is particularly suitable for farmers and small water users with limited budgets and normal, non-corrosive water needs, making it one of the most cost-effective and commonly used models in the field of agricultural irrigation.
DIFFUL is an innovative and technology-leading manufacturer of solar pumps, specializing in DC solar pumps, AC/DC hybrid solar pumps, and shielded motor solar pumps. Since our establishment in 1989, we have maintained a 100% focus on this industry, with hundreds of thousands of our pumps in use worldwide. Our commitment to quality is evident through the use of high-precision and fully automatic processing machines, advanced assembly lines, and testing equipment to enhance efficiency and ensure top-notch products. Furthermore, we have established our own controller production and research and development workshop, guaranteeing that every step of the production process is meticulously controlled. We are actively seeking distributors and offering support for OEM partnerships. If there are any further discussions or details that need to be addressed, please feel free to contact us. We appreciate your attention and trust.
E-mail:sales08@diffulpump.com
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Difful is an innovative technology-leading solar pump manufactory for DC solar water pumps, AC/DC hybrid solar pumps, and shielded motor solar pumps.

Since our founding in 1989, we have been 100% focused on this area, and we have hundreds of thousands of pumps in use worldwide. We have high-precision and fully automatic processing machines, advanced assembling lines and testing machines to improve the quality and efficiency.

Get energy from sunlight, move water from nature and serve life.

----This has always been the vision of Difful.

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8000m2

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