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

Pump Group FlowBox HK20 for radiator heatingpump group hk20

Pump group HK20 for direct heating circuits

View products pump group hk20 khpump group hk20 kh 3

Pump group HK20-KH with additional shut-off valve

View products pump group hkm20pump group hkm20

Pump group with mixing valve HKM20

View products pump group hkf20pump group hkf20

Pump group with thermostatic mixer HKF20

View products pump group hkfc20pump group hkfc20

Pump group with mixing valve and electr. temperature control HKFC20

View products Boiler manifold VB20Boiler manifold VB20

Boiler manifold VB20 for 2-3 pump groups

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