Cal-Pro Floor-Standing Heating Expansion Vessel

In a closed heating system, water cannot be compressed and any increase in water volume due to the increase of its temperature is absorbed by the expansion vessel. When water is cold, the precharge air pressure in the vessel presses the diaphragm against the tank. As temperature increases, the expanded water volume pushes against the diaphragm and water enters the vessel providing additional space to
the system. When the water temperature decreases, the air cushion forces water back into the system. This permits the system to maintain pressure and ultimately helps to reduce energy consumption.

  • Suitable for all types of heating system
  • Carbon steel construction
  • SBR synthetic rubber diaphragm
  • Hard wearing epoxy polyester powder coated finish
  • 100% factory tested
  • Fully CPR compliant
  • Sizing calculator available*
  • Maximum working temperature 90°C

Products and Codes

ProductCode
Cal Pro 35 Litre Floor Standing Heating Expansion VesselZ1-302035CP
Cal Pro 50 Litre Floor Standing Heating Expansion VesselZ1-302050CP
Cal Pro 80 Litre Floor Standing Heating Expansion VesselZ1-302080
Cal Pro 105 Litre Floor Standing Heating Expansion VesselZ1-302105
Cal Pro 150 Litre Floor Standing Heating Expansion VesselZ1-302150
Cal Pro 200 Litre Floor Standing Heating Expansion VesselZ1-302200
Cal Pro 250 Litre Floor Standing Heating Expansion VesselZ1-302250
Cal Pro 300 Litre Floor Standing Heating Expansion VesselZ1-302300
Cal Pro 400 Litre Floor Standing Heating Expansion VesselZ1-302400
Cal Pro 500 Litre Floor Standing Heating Expansion VesselZ1-302500
Cal Pro 600 Litre Floor Standing Heating Expansion VesselZ1-302600
Cal Pro 700 Litre Floor Standing Heating Expansion VesselZ1-302750
Cal Pro 800 Litre Floor Standing Heating Expansion VesselZ1-302800
Cal Pro 900 Litre Floor Standing Heating Expansion VesselZ1-302900

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