Grundfos CRFlex 3-9

Grundfos

Snapshot
Manufacturing & delivery
Performance & use
Research & standards
Feedback

Product description Brand name and product description

The Grundfos CRFlex pump is a vertical multistage centrifugal pump, that can be powered by solar, grid or generator power.

This solar surface pump provides a sustainable, reliable and cost efficient alternative to irregular water supply solutions in remote locations, or for highly specific applications anywhere.

It is available as a complete unit only, consisting of a MGFlex motor and a CRI pump end. See Product Brochure

Target region(s) Target region for distribution/implementation (listed by country if specified)

Worldwide.

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

The product is distributed via local distributors.

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

The CRFlex 3-9 is sold at around USD 2200.

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Lorentz PS CS-F.

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal #2 The Grundfos CRFlex pump improves food security: -by irrigating crops, it leads to more reliable harvests and provides the opportunity to grow and sell produce out of season. – by watering livestock.

Target user(s) Target user/consumer base (country, income segment)

Rural users or communities.

The pump is ideal for small scale irrigation, stock watering, pressure boosting or water transfer.

Manufacturing/building method(s) Detail regarding solution production or construction method (instructions, mass production capacity, custom made,etc...)

Mass production.

Product Intellectual Property Open source/IP protected (note patent)/trade secret/other?

Patent protected.

User Provision Model Where can the product be purchased/acquired by end users?

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

Distribution to date Number of units that have been deployed, downloads or users to date

Several thousands.^{interview with representative}

Fields marked are sourced values that have been evaluated by the manufacturer or a third party, all others are design specifications.

Power source

Solar

Maximum distance from water source (m)

Unknown

Maximum lift/head (m)

70 m

Required pressure (MPa)

Unknown

Pump type

Multi-stage centrifugal pump

Maximum flow rate (L/min)

6000 L/h

Power requirement: max power (watts)

1250 W

Power requirement: max motor current (amps)

5 A

Power requirement: voltage range (volts DC)

110-415 VDC (or 1 x 220-240 VAC)

Irrigation capacity (acres)

Unknown

Design specifications Component and Operation overview including power, portability, facility requirements, preventative maintenance and user training requirements

Easy to install and simple to use even under the most difficult conditions.

Materials of construction are stainless steel for the hydraulic parts and cast iron for the pump head and base.

The CRFlex pump must be protected against rain and direct sunlight.

The Pump

The pump consists of a base and a pump head. The chamber stack and the outer sleeve are secured between the pump head and the base by means of stay bolts. The base has suction and discharge ports on the same level (in-line).

The pump is equipped with a maintenance-free mechanical shaft seal of the cartridge type.

The vertical distance between the inlet of the CRFlex pump and the dynamic level of the water source must be less than 20 feet.

The motor

2-pole motor with integrated variable frequency drive.

power input of 70 to 1250 W.

motor speed range of 1000 to 3400 rpm.

The motor has a wide voltage input range (both AC and DC) – it operates at any voltage from 110 to 415 VDC or 220 to 240 VAC (50/60Hz). It can therefore be connected to either PV solar modules, a standby AC generator or mains power supply as required.

When run on DC power, it utilises Maximum Power Point Tracking (MPPT) function for optimal performance.

The CRFlex system is protected against overloading, overheating and dry running.

IO 50

Designed specifically for solar-powered systems.

The IO 50 enables manual starting and stopping of the pump in an CRFlex Solar system and functions as a connection box joining all necessary cables.

In context photographs (0)

You can use the form below to contribute a photo of this product.

In context files & documents (0)

Feedback from users, customers & distributors

Please let us know your experience in using this product through comments below.

Solutions Library

Sign In

To search & compare 600+ essential technologies

GF1 Submersible solar pump kit

Rock Water Pump

Solar Force Piston Pump – Dankoff Solar

IDE Treadle pump

Red rhino

aQysta Barsha Pump

SunCulture SP-300 Solar Pumping System

Kickstart Moneymaker Max

Lorentz PS600 CS-F

Futurepump SF1 Solar Pump

Grundfos CRFlex 3-9

Grundfos

In context photographs (0)

In context files & documents (0)

Feedback from users, customers & distributors