Pump groups DN20
Compact FlowBox DN20 pump groups for radiator heating systems (HK20, HK20-KH) and pump-mixer groups for underfloor heating systems (HKM20, HKF20, HKFC20).
- Compact design (DN20), footprint approx. DIN A4
- Quick wall mounting with just one screw
- Gravity check valve to prevent unwanted circulation
- 3-part EPP insulation concept, compliant with the German Building Energy Act (GEG), for reduced heat loss
- Cable routing selectable on the left or right – for easy and safe installation
- Supply and return lines can be swapped thanks to the flexible mixing valve
- All connections with G1" external thread, flat sealing
- Pump length: 130 mm
VB20 boiler manifolds enable the connection of 2 or 3 pump groups. Suitable hydraulic separators can be found here: Hydraulic separators