The solar drain-units are solar pump stations with a built-in drain-back system. By draining, the solar collectors’ problems with over-temperature and freezing can be avoided.
Max. operating temp. : 110°C.
Max. peaks : 130°C.
Safety valve : 3 bar.
Flow indication range : 2 to 12 l/min.
Max. separation volume : 8 litres.
Connections : 3/4" male.

Height* No. of Collectors**
5 to 10 m 1 to 4.
* Height from the top of the solar collectors to the lowest point of the drain-unit.
**Calculated for a collector capacity of 1.25 litres.