DC Solar Surface Pump — SQBL / SGJF Series

DC Solar Surface Pump — SQBL / SGJF Series

Compact brushless DC solar surface pump designed for efficient water transfer, garden irrigation and general off-grid pumping. Multiple low-voltage and higher-capacity configurations allow flexible system selection, while the practical self-contained design supports straightforward installation for homes, farms and small commercial projects.

Applications

Solar water transfer, irrigation and off-grid surface pumping.

Operating Conditions

Install as a surface pump; maximum suction is 8 m for the listed models.

Motor / System Information

Brushless DC solar surface-pump system.

Spu : SOL-SQB

Overview

Overview

Product Information

Product Name	DC Solar Surface Pump — SQBL / SGJF Series
Series	SQBL / SGJF
Voltage	12–144V DC; best input 12–340V
Power	180–1100 W
Flow	1.3–28 m³/h
Head	14–40 m
Outlet	1×1 to 2×2 in
Maximum suction	8 m
Model Options	SQBL1.3, SQBL2.0, SQBL2.2, SQBL1.3-S, SQBL2.0-S, SQBL2.3-S, SGJF6, SGJF15, SGJF20 and SGJF28.

DC SOLAR SURFACE PUMP

Model	DC Volt	Best Input Voltage Voc	Power	Max.Flow	Max.Head	Max.Suction	Outlet
Model	(V)	(V)	(W)	(m³/h)	(m)	(m)	(inch)
SQBL1.3-16/12-180	12	12-45	180	1.3	16	8	1"X1"
SQBL2.0-28/24-250	24	20-50	250	2.0	28	8	TAL
SQBL2.2-40/48-400	48	45-100	400	2.2	40	8	1"X1"
SQBL1.3-15/12-180-S	12	12-40	180	1.6	15	8	TAA
SQBL2.0-23/24-250-S	24	18-50	290)	2	23	8	1"X1"
SQBL2.3-35/48-400-S	48	45-100	400	20	30	8	1"X1"
SGJF6-14/48-400	48	45-100	400	6	14	8	VAL
SGJF15-14/72-600	72	60-150	600	15	14	8	172"X172"
SGJF20-14/96-750	96	80-200	750	20	14	8	ake
SGJF28-15/144-1100	144	100-340	1100	28	15	8	2"X2"

Detail / Structure Image

Solar Pump_4_1x1_full.png

Key Features

High-Efficiency Self-Priming Design: The centrifugal pump mechanism can automatically prime itself, lifting water from sources several meters below the pump, which simplifies installation and operation for surface water applications.

Brushless DC Permanent Magnet Motor: Delivers superior energy efficiency and a longer operational lifespan by eliminating brushes, a common wear component. This ensures more water is pumped for every watt of solar energy.

Integrated MPPT Solar Controller: Features a built-in intelligent controller with Maximum Power Point Tracking (MPPT) to optimize power extraction from solar panels, increasing daily water output by up to 30% compared to non-MPPT systems.

Robust and Weather-Resistant Construction: The pump and motor assembly is built with durable materials like cast iron and stainless steel, and designed with a high IP protection rating to withstand harsh outdoor conditions, including rain, dust, and temperature fluctuations.

Comprehensive Protection Systems: The integrated controller provides critical protection against dry running, over-voltage, under-voltage, and over-current, ensuring the pump operates safely and has a longer service life.

Wide Operating Voltage Range: Designed to accommodate fluctuations in solar power, the pump can operate effectively across a wide DC voltage range, ensuring stable performance even in variable weather conditions.

Easy Installation and Maintenance: As a surface-mounted unit, the pump is easily accessible for routine checks and maintenance, reducing downtime and service costs compared to submersible alternatives.

Competitive Advantages

1. Superior Energy Efficiency and Water Yield
The synergy between the brushless DC motor and the MPPT controller is the primary technical advantage of the SQBL/SGJF series. The MPPT controller ensures the solar panels operate at their peak power point, while the high-efficiency motor converts that power into hydraulic energy with minimal loss. For the end-user, this means a smaller, less expensive solar array can be used to achieve the same water output as a less efficient system, or a standard array can produce significantly more water. This directly translates to a lower initial investment and a faster return on investment (ROI).

2. Unmatched Reliability and Low Maintenance
The brushless DC motor is a game-changer for reliability. By removing the brushes, a component that wears out and requires periodic replacement in traditional DC motors, the operational life of the motor is extended significantly. This, combined with the robust construction of the pump body and the comprehensive electronic protections, results in a system that demands very little maintenance. For distributors and service companies, this means fewer warranty claims and higher customer satisfaction, strengthening brand reputation in the market.

3. Versatility for Surface Water Applications
While submersible pumps are ideal for boreholes, a vast number of water sources—such as rivers, streams, ponds, and large storage tanks—are best accessed from the surface. The self-priming capability of the SQBL/SGJF series makes it the perfect tool for these applications. It provides B2B partners with a solution for a different set of customer problems, expanding their addressable market beyond just deep well applications to include agricultural irrigation from canals, livestock watering from ponds, and water transfer for construction sites.

4. Simplified System Architecture and Installation
The integration of the MPPT controller into the pump system (or as a closely matched, plug-and-play component) simplifies the entire setup. Installers do not need to source and wire a separate, generic solar inverter. The system is designed to be plug-and-play: connect the solar panels to the controller, and the controller to the pump. This reduces installation time, minimizes wiring errors, and lowers labor costs, making the system more attractive and profitable for installation partners.

5. Strong Commercial Value for B2B Partners
For wholesalers, distributors, and project developers, the SQBL/SGJF series offers a compelling product with high market demand. The global push for sustainable agriculture and off-grid solutions creates a growing customer base. The pump's combination of high performance, durability, and intelligent features provides a strong unique selling proposition (USP) that can be leveraged in sales and marketing. Offering a reliable, efficient, and easy-to-service solar surface pump allows businesses to build long-term relationships with their clients based on trust and proven results.

Commercial Value

Cost-Effective ROI: The SQBL/SGJF Series offers a compelling return on investment by combining competitive upfront costs with near-zero operating expenses. The elimination of fuel costs and significant reduction in electricity bills lead to rapid payback periods .

Lower Total Cost of Ownership (TCO): TCO is minimized through high energy efficiency, low maintenance requirements (thanks to the BLDC motor), and the durable construction of the pump. The above-ground design also reduces the cost and complexity of servicing .

Scalable and Adaptable: The solar system is modular. Buyers can begin with a smaller pump and solar array, and easily expand the system by adding more panels or upgrading to a more powerful pump to meet growing water demands .

Supports ESG Goals: Using solar power aligns with global environmental, social, and governance (ESG) targets. This positions businesses as sustainable operators, helping them meet green procurement standards .

Simplified Logistics and Installation: As a self-contained, above-ground unit, the SQBL/SGJF Series is easy to ship, handle, and install compared to submersible pumps or complex diesel generator setups, reducing project timelines and logistical costs.

FAQ

Q1: What is the maximum height this pump can lift water from?
A: The SQBL/SGJF series features a self-priming capability, with a maximum suction lift typically ranging from 6 to 9 meters, depending on the specific model. It is crucial to ensure the vertical distance from the water surface to the pump's inlet does not exceed this limit for the pump to prime and operate correctly.

Q2: Do I need to buy a separate solar controller for this pump?
A: No, the system is designed with an integrated intelligent controller that includes MPPT (Maximum Power Point Tracking) functionality. This controller is essential for optimizing the pump's performance and providing protection. It is either built into the pump's connection box or supplied as a matched component in the kit.

Q3: Can this pump run on batteries for use at night?
A: The pump is designed primarily for direct DC operation from solar panels. While it is technically possible to design a system with a battery bank and a charge controller, it adds significant cost and complexity. For nighttime operation, a hybrid system with an automatic changeover to grid or generator power is a more common and often more economical solution.

Q4: How does the pump handle variable sunlight, like on a cloudy day?
A: The integrated MPPT controller and the wide operating voltage range of the brushless DC motor allow the pump to adapt to changing light conditions. On cloudy days, it will continue to run but at a reduced speed, resulting in a lower flow rate and head pressure. It will automatically speed up as sunlight intensity increases.

Q5: What kind of maintenance does a solar surface pump require?
A: Maintenance is minimal. As a surface pump, it is easily accessible. Key tasks include periodically checking the inlet strainer or foot valve for debris, inspecting pipe connections for leaks, and ensuring the solar panels are clean. The brushless motor is sealed and does not require any internal maintenance like brush replacement.

Applications

Township Municipal Water Supply

Mini automatic booster pumps solve low water pressure for villages, small towns and community centralized water supply pipe networks. Matching small fans are available for auxiliary ventilation of municipal pump rooms.

Family Farm & Garden Irrigation

Small self-priming pumps & stainless steel deep well submersible pumps support farm irrigation, garden watering and mountain village domestic water intake.

Industrial Cooling & Circulation

Mini circulation pumps provide stable liquid circulation & cooling for small processing workshops, boiler and solar hot water systems. Auxiliary fans can be matched for workshop air circulation.