ALPHA SOLAR for a high-efficiency solar water system

The high-efficiency ALPHA SOLAR circulator pump from Grundfos comes with a permanent magnet motor and is designed to be integrated in thermal solar pump systems. Four constant-curve settings are available and the speed can be controlled by a low-voltage PWM signal to optimise solar harvesting and reduce power consumption.

Grundfos ALPHA SOLAR offers very simple installation and a low noise level. This high-efficiency and reliable pump is built to be maintenance-free with durable ceramic bearings and shaft, as well as corrosion-resistant stainless-steel components.

Reliable and high efficiency 

The PWM signal generates an analog signal using a digital source to control pump speed, performance and to optimise solar harvesting and ensure minimal power consumption.  

Easy Access

A manual deblocking screw is accessible from the front of the pump.

Remote troubleshooting

A dry-running warning is available as a PWM feedback signal. 

Easy operation

Very simple installation, low noise level and no maintenance required.

See how customers benefit from this product

When Grundfos is a part of the solution, you get reduced energy consumption, increased comfort and unsurpassed operational reliability. Read our customers' own stories about how they benefit from the Grundfos approach to intelligence, water and energy.

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