Solar Dual-Line Electronic Pump Group Grundfos UPM3 25-145 8-28L/min is a device that enables efficient operation and regulation of the solar fluid circuit between the solar collector and the storage tank.

The pump group includes:

- Circulation pump,

- 6 bar safety valve,

- Thermometers on the supply and return lines,

- Air separator,

- Connection fittings,

- EPP insulation (expanded polypropylene).

It can operate with both flat plate and vacuum tube solar collectors.

Thanks to the dual pump group, the user can monitor the temperature of the heating medium both on the supply and return sides.

The pump can operate temporarily at temperatures up to 120°C.

Measurement range (Water/glycol 40%): 8–28 l/min.