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Expansion Vessels - Heating

Heating Expansion Vessels

Our comprehensive range of heating and cooling expansion vessels come in sizes from 50 - 1000 litres. All our expansion vessels are manufactured in accordance with BS EN 13831. The welded vessel results in a strong reliable structure suitable for internal pressures up to 6 bar.

We recommend choosing an expansion vessel which is 10-15% of your buffer tanks volume.

  • Carbon steel shell and connections
  • Synthetic rubber diaphragm
  • Powder coated grey finish
  • 6 bar working pressure
  • Maximum flow operation temperature of 120°c
  • Maximum vessel operating temperature of 70°


Please download the datasheet for more information.

Connection sizes for our vessels are as follows:

50ltr = 3/4"
80 - 1000ltr = 1"

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Delivery and Returns

Our standard delivery cost is £15. We aim to deliver next day (to UK Mainland) for orders received and paid for by 1pm. Click here for more information...