Grundfos Solar Surface Pump

Target SDGs

Market Suggested Retail Price

$3,144.75

Target Users (Target Impact Group)

Household, Community

Distributors / Implementing Organizations

The product is distributed via local sales distributors in different countries.

Competitive Landscape

Direct competitors include GF1 Submersible Solar Pump, AgroSolar Irrigation System, SunCulture SP-300 Solar Pumping System, Lorentz PS600 CS-F, Futurepump SF1 Solar Pump, and Renpower Solar Pumping.

Manufacturing/Building Method

Mass production. ^{Interview with representative}

Intellectural Property Type

Patent

User Provision Model

Users can contact their local sales company to get information on where and how to buy the CRFlex Pump. This is the List of local distributors per country

Distributions to Date Status

Several thousands. Interview with representative

Design Specifications

The Grundfos solar surface pump is a renewable energy-based water supply system designed for simplicity and efficiency in water transfer using solar energy. This system is easy to install and operate, even in challenging conditions, with maintenance limited to occasional cleaning of the solar panels. The pump is constructed with durable materials, featuring stainless steel for the hydraulic components and cast iron for the pump head and base. The CRFlex pump, part of this system, requires protection from rain and direct sunlight and includes a maintenance-free mechanical shaft seal. It is designed to work effectively with a vertical distance of less than 20 feet between the pump inlet and the water source's dynamic level. The CRFlex pump is equipped with a 2-pole motor that has an integrated variable frequency drive and a wide power input range from 70 to 1250 W. The motor operates at speeds between 1000 to 3400 rpm and can handle a broad voltage input range, from 110 to 415 VDC or 220 to 240 VAC (50/60Hz), allowing it to connect to PV solar modules, an AC generator, or mains power. It utilizes a Maximum Power Point Tracking (MPPT) function when operating on DC power for optimal performance. The system is also safeguarded against overloading, overheating, and dry running. The IO 50 component is specifically designed for solar-powered systems, enabling manual control of the pump and serving as a connection hub for all necessary cables in the CRFlex Solar system.

Product Schematics

Technical Support

Grundfos teams of skilled service technicians provide different services:

• Installation
• Optimisation & Consultancy
• Repair and maintenance: on-site repair, pump check, and workshop repair.

Replacement Components

Spare parts are supplied by Grundfos. Grundfos provides 24/7 worldwide delivery through the MyGrundfos platform

Lifecycle

The lifetime is typically 10 - 25 years. End-of-life information for the MGFlex motor is online

Manufacturer Specified Performance Parameters

• Temperature Range [°F]: -4 to +250
• If the pump is used for liquids with a viscosity higher than that of water, this will reduce the heat and increase the power consumption.
• Specified chart see below, with - Typical deviation: + / - 15 %. - The measurements have been made at a water temperature of +70 °F (+20 °C).

Vetted Performance Status

The solar surface pump respects the Tolerances to  ISO 9906 test. and the motors used for the measurements are standard Grundfos MG motors.

Safety

Built-in protection for under and overvoltage and system overload. No additional protection is therefore required. Care should be taken when handling the motor due to the weight.

Complementary Technical Systems

Three models are available, all powered by the same 1250W motor providing a selection of head and flow outputs depending on the application. Grundfos has developed a PC-based sizing tool enabling the sizing of the system. The sizing tool is integrated into Grundfos WinCAPS and covers solar-powered systems. The following three parameters must be known for the sizing of the optimum system:

• installation location
• maximum head required
• quantity of water required

Academic Research and References

Compliance with regulations

Grundfos has multiple certifications, including the ISO 9001 certification.

Other Information

• Case studies available online, for instance Sustainable private water service delivery - TradeWater by Water Missions International.
• Grundfos Data Booklet - Renewable energy-based water supply system
• Installation and operating instructions.
• MyGrundfos platform - Instant access to spare parts
• Solar pumps are typically tested by approval organisations (i.e. government tenders) against certain requirements in solar radiation for a particular location. Interview with representative