CSPG-279 HE, 3-way zone valve

Very important elements of the solar heating systems are also the CSPG solar pump units. The CSPG-279 HE pump unit contains all the elements (apart from the collectors, water heater with automatic control, solar air vent pot and expanding vessel) necessary for normal functioning of the solar heating system. If there is an additional collector circuit or an additional accumulation tank, apart from a CSPG-279 HE solar pump, a 3-way zone valve should also be installed, which enables the expansion of the solar system. All safety elements are included, space saving solar groups have thermal and acoustic insulation and their assembly is straightforward.


  • PUMP

    Built-in circulation pump Grundfos Solar 15-75.


    Built-in 2 thermometers.


    Connection for the expansion vessel.


    They require little space and are simply installed.

  • 2 gravitational ball valves
  • 2 thermometers
  • manometer
  • safety valve, 6 bar
  • circulation pump Grundfos Solar 15-75
  • filling/draining valve
  • flow regulator (1-13lit./min)
  • connections ø22mm
  • manual air vent device
  • connection for the expansion vessel
  • twin-ply foam insulation


  • enables fluid flow in two directions (AB-A or AB-B)
  • in case of loss of electric power it turns into the primary
  • position
  • connections 1”


Schematic layout of CSPG-279 HE solar pump group and the 3 – way zone valve:

Centrometal d.o.o. shall not be responsible for possible incorrect data caused by error made in transcription and all figures and diagrams are for explanatory purposes only and relevant adjustment have to be made at the spot. In any case, it reserves the right to modify its products as deemed to be required and useful without any prior notification.