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Sunex Filling and Flushing Station – Mobile Unit for Solar, Underfloor and Wall Heating Systems


The Sunex filling and flushing station is a professional tool for filling, flushing, and maintaining closed systems – such as solar thermal systems, underfloor heating, or wall heating. Its robust construction, powerful pump, and well-thought-out design make it the perfect choice for installers and service technicians.


Technical data:

  • Tank volume: 25 liters (polyethylene with suction strainer)
  • Pump power: 230 V / 50 Hz, 1200 W
  • Maximum delivery head: 48 m
  • Maximum flow rate: 63 l/min
  • Max. media temperature: 35 °C
  • Medium: Water or water-glycol mixture (e.g., 50/50)
  • Connections:
  • Check valve: ½
  • Drain valve: ½
  • Shut-off valves: ¾
  • Dimensions (H x W x D): 920 × 430 × 470 mm
  • Weight (empty): 17 kg
  • Housing: Powder-coated steel frame on sturdy wheels
  • Special features:
  • Transparent pressure hoses for backflow control
  • Ball valves on the connecting hoses
  • Hose holder


Areas of application:

  • Initial filling and flushing of solar collector systems
  • Maintenance and flushing of underfloor heating systems
  • Exchange of heat transfer fluids
  • Service calls for closed heating circuits


Note: Solar thermal systems must not be filled during direct sunlight – risk of thermal damage!

** Average Wholesale Price