Grundfos CRNF 3-11 Solar Surface Pump – Efficiency Meets Innovation

The Grundfos CRNF 3-11 Solar Surface Pump is a high-performance, vertical, centrifugal multi-stage pump designed to deliver outstanding efficiency for industrial and solar-powered applications. Its inline (non-self-priming) configuration makes it a perfect fit for in-pipe systems, while the robust construction ensures ease of mounting on a foundation. This pump incorporates advanced features like the Maximum Power Point Tracking (MPPT) software, enabling optimal energy utilization when connected to solar panels. Furthermore, the built-in motor electronics include motor protection, eliminating the need for additional safety mechanisms and ensuring smooth, hassle-free operation.

Unparalleled Technical Specifications

The Grundfos CRNF 3-11 pump is engineered for precision and durability. With a rated flow of 3.5 m³/h and a rated head of 79.2 m, it is capable of managing demanding applications seamlessly. Its primary HQQE shaft seal ensures robust sealing performance, enhancing reliability and longevity. Crafted from high-grade stainless steel AISI 316, the pump housing and impeller guarantee resistance to corrosion and harsh conditions. Moreover, the wide liquid temperature range (-20°C to 120°C) and high operating pressure limit (up to 25 bar) make it versatile for diverse environments.

Superior Motor Design and Flexibility

Equipped with the advanced MGF motor, the Grundfos CRNF 3-11 offers remarkable adaptability with support for both DC (30-300 V) and AC (90-240 V) supplies. The rated power of 1.5 kW ensures reliable performance, while the motor speed reaches up to an impressive 3600 rpm. The IP55 enclosure class and F-grade insulation further enhance its safety and durability, making it an ideal choice for heavy-duty operations. An optional external sensor can also be integrated to provide precise control over pump functionality, enhancing overall user convenience.

Unmatched Quality and Certifications

The Grundfos CRNF 3-11 Solar Surface Pump prioritizes quality and safety. It complies with industry-leading standards, carrying certifications like CE, UKCA, SEPRO, and RCM. For drinking water applications, this pump is also certified by WRAS and ACS. With a minimum efficiency index (MEI) of ≥ 0.70, you can count on energy-efficient performance and reduced environmental impact.

Choose the Grundfos CRNF 3-11 Solar Surface Pump for your operational needs, and experience unparalleled efficiency, robust design, and innovative integration — the perfect solution for solar and industrial pumping requirements.

The CU 200 control unit is a combined status, control, and communication unit specially developed for the SQFlex system. Furthermore, the CU 200 enables the connection of a level switch.

The CU 200 incorporates cable entries for:

Communication between the CU 200 and the pump takes place via the pump power supply cable. This is called mains borne signalling (or Power Line Communication), and this principle means that no extra cables between the CU 200 and the pump are required. It is possible to start, stop and reset the pump by means of the on/off button.

The CU 200 control unit offers:

The following indications allow the operation of the pump to be monitored:

The CU 200 offers the following alarm indications:

In addition, the CU 200 shows the symbols of the energy supply options.

IO 101

The IO 101 switch box is designed specifically for solar-powered SQFlex systems. The IO 101 enables the connection of a generator supply backup in case of insufficient solar radiation. The switching between solar power and the generator must be made manually. In case the generator is stopped manually or runs out of fuel, the IO 101 will automatically switch to the solar energy supply. The IO 101 functions as a connection box joining all necessary cables.

Grundfos SQF 3-105

Reliable Performance for Medium Heads and Flow Rates

The Grundfos SQF 3-105 centrifugal pump is meticulously engineered for medium heads and flow rates, making it an optimal choice for a wide range of water supply projects. Equipped with dynamic features and built using high-quality materials such as stainless steel and polyamide, this pump ensures exceptional durability and efficiency, even in demanding environments.

Sustainability Powered by Renewable Energy

The SQFlex system stands out with its commitment to sustainability, utilizing renewable energy sources like solar and wind energy. Designed to adapt seamlessly to various installation requirements, this system offers unmatched flexibility in energy supply and performance. Whether your site conditions are unique or standardized, the SQFlex system guarantees a dependable, eco-conscious water solution.

Advanced Features for Optimal Protection and Efficiency

What sets the SQFlex centrifugal pump apart is its innovative technology. It features a built-in Maximum Power Point Tracking (MPPT) system, ensuring optimal energy utilization. The pump also includes advanced protective mechanisms, such as dry-running, voltage, and overload protection, further enhancing its reliability and long lifespan under varying operational conditions.

With UKCA, CE, EAC, CN RoHS, Exempt, Morocco, and Sepro certifications, the SQF 3-105 pump meets global quality standards. It’s more than a water pump—it’s a versatile, sustainable, and highly efficient tool for modern water supply challenges.

Grundfos SQF 5-70 – Reliable Performance with Renewable Energy

The Grundfos SQF 5-70 centrifugal pump is engineered for medium heads and flow rates, making it a cornerstone of sustainable water solutions. Powered by the innovative SQFlex system, this pump integrates renewable energy sources such as solar and wind energy. Its superior adaptability ensures that it can be customized to meet diverse site-specific needs, delivering reliable performance wherever it’s installed.

Advanced Features and Design

The SQFlex system offers cutting-edge functionalities, including a wide voltage range, built-in Maximum Power Point Tracking (MPPT), and protections against dry-running, voltage irregularities, and overload. Built with premium materials like stainless steel (DIN W.-Nr. 1.4301 AISI 304) and polyamide impellers, the pump is not only durable but also optimized for long-term efficiency. With a maximum operating pressure of 15 bar and a minimum borehole diameter of 76 mm, its robust design ensures compatibility with challenging applications.

Technical Excellence for Precision Use

Equipped with an MSF3 motor, the SQF 5-70 pump delivers a rated power of 1.85 kW and operates efficiently at voltages ranging from 90-240V (AC) or 100-300V (DC). The motor’s IP68 enclosure and internal thermal protection guarantee safety and reliability under varying conditions. Weighing 9.14 kg, the pump is lightweight yet powerful, with an impressive rated speed of 10,700 rpm. Its certification approvals, including UKCA, CE, and EAC, highlight its compliance with global standards.

Why Choose the SQF 5-70?

If you’re looking for a water supply solution built to last, the SQF 5-70 ensures efficiency, durability, and sustainability. Ideal for installations across Europe, South America, and Japan, this centrifugal pump bridges reliability and green energy innovation, making it the perfect choice for your water pumping needs.

System Overview

Head max. 40 m
Flow rate max. 1.1 m³/h

LORENTZ PS2-4000 C-SJ5-25: Unmatched Performance for Water Management

The LORENTZ PS2-4000 C-SJ5-25 Solar Submersible Pump System stands out as a cutting-edge solution for your water management requirements. Designed with precision engineering, this system offers unparalleled performance by delivering a maximum head of 140 meters and the capability to pump up to an impressive 7 m³ per hour. Whether you need to supply water for deep wells, irrigation systems, or large-scale projects, this solar-powered pump is a reliable and efficient choice.

Engineered for Durability and Efficiency

This solar submersible pump system is built to excel in demanding environments. Thanks to its robust construction and advanced design, it ensures long-lasting functionality with minimal maintenance. In addition, the system leverages solar energy, making it a sustainable and cost-effective solution for irrigation, farming, and water supply applications. It is the perfect choice for individuals and industries seeking reliable performance while reducing their operational costs.

Versatile Applications for Diverse Needs

The LORENTZ PS2-4000 C-SJ5-25 Solar Pump System is suitable for a wide range of applications. From accessing water in deep wells to efficiently managing irrigation systems, its versatility makes it an excellent investment. It is particularly beneficial for environments with limited electricity access, as it utilizes solar energy to ensure uninterrupted water supply. With this system, you can achieve sustainable water management solutions without compromising on efficiency or performance.

LORENTZ PS2-4000 C-SJ8-15 Solar Submersible Pump System

The LORENTZ PS2-4000 C-SJ8-15 Solar Submersible Pump System is an innovative and energy-efficient solution designed to meet your water pumping needs with unmatched reliability and sustainability. Leveraging the power of solar energy, this system minimizes operational costs while delivering high-performance results even in remote locations.

Exceptional Performance and Specifications

This advanced pump system offers outstanding performance with a maximum head of up to 80 meters, allowing for seamless water transportation across substantial height differences. With a flow rate capacity of up to 13 m3/h, the LORENTZ PS2-4000 ensures efficient water delivery for a range of applications, from agricultural irrigation to supplying potable water. Designed with precision engineering, it guarantees consistent and reliable operation, even in challenging conditions.

Sustainable and Cost-Effective Solution

Powered entirely by solar energy, the LORENTZ PS2-4000 promotes environmental sustainability while reducing dependence on traditional energy sources. This not only eliminates fuel or electricity expenses but also significantly lowers the carbon footprint, making it a cost-effective and eco-friendly choice for modern water management solutions.

Applications and Versatility

Whether you are addressing water supply challenges in rural areas, supporting agricultural irrigation, or tackling industrial water needs, the LORENTZ PS2-4000 C-SJ8-15 Solar Submersible Pump System offers versatile performance you can trust. Its robust design and advanced features make it the ideal choice for diverse applications, ensuring optimal efficiency and reliability at all times.

Invest in the LORENTZ PS2-4000 today to experience durable, high-powered pumping combined with the economic and environmental benefits of solar energy.

Dispenser tag 50 pcs. – LORENTZ branded

LORENTZ smartTAP is an off-grid water dispensing and management system which enables revenue collection, water entitlement and sustainable water provision.

LORENTZ smartTAP combines hardware, software and predefined business models to allow for water infrastructure to be delivered in an economically sustainable way using the latest technology.