Solar station – two strand
1. March 2024
Hydrualic switch DN 25 – horizontal
1. March 2024
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Solar station – single strand

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