The DN 25 solar pump group is suitable for low-flow solar thermal systems with a maximum operating pressure of 10 bar and a constant temperature of 120 ÅãC (briefly up to 160 ÅãC for 20 s). A ball valve with thermometer and backflow preventer, a safety group, and a flow meter are included in the primary flow.
Nominal diameter | DN 25 |
Connection dimensions | top/bottom – 1“ G |
Center distance heating flow and return flow | 125 mm |
Dimensions (H x W x L) | 530 mm x 200 mm x 150 mm |
Materials | EPP, brass, steel, copper, EPDM Seals |
Field of application | 50 kW Low flow (1-3l/min*mm²), -10 °C – 110 °C |
Operating pressure | max. 10 bar |