Pump units for solar thermal systems

Solar pump units in the FlowBox SOLAR series are pump groups for solar thermal systems for circulating the heat transfer medium between solar collectors and storage tanks.

The stations are available in nominal widths DN20 and DN25, each in single (solar return line) and standard versions (two lines with vent pipe). All models have factory-wired solar circulation pumps with installation heights of 130 mm (DN20) or 180 mm (DN25) from established manufacturers. The equipment includes WattFlow balancing valves, solar safety groups, wall brackets for the expansion vessel including corrugated hose, metal gravity check valves and EPP thermal insulation shells.

Depending on the version, the volume flow rate is between 0.5–6 l/min and 15–42 l/min.