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An expansion tank or expansion vessel is a small tank used to protect closed (not open to atmospheric pressure) water heating systems and domestic hot water systems from excessive pressure. The tank is partially filled with air, whose compressibility cushions shock caused by water hammer and absorbs excess water pressure caused by thermal expansion.

Flexcon Solar 8 - 25

Flamco UK Ltd
Flexcon Solar 8 - 25, 8 bar(g) expansion vessels are suitable for use in central heating, cooling and solar installations....

Flexcon Solar 35 - 80

Flamco UK Ltd
Flexcon Solar 35 - 80, 8 bar(g) expansion vessels are suitable for use in central heating, cooling and solar installations....

Flexcon Top 35 - 80

Flamco UK Ltd
Flexcon Top 35 - 80, 6 bar(g) expansion vessels are intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Sealed systems maintain the operating pressure in heating and cooling...

Flexcon Top 2 - 25

Flamco UK Ltd
Flexcon Top 8 - 25, 6 bar(g) expansion vessels are intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Sealed systems maintain the operating pressure in heating and cooling ...

Flexcon 110 - 1000 - 10.0 bar(g)

Flamco UK Ltd
Flexcon 110 - 1000, 10 bar(g) expansion vessels is intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Sealed systems maintain the operating pressure in heating and cooling ...

Flexcon 110 - 1000 - 6.0 bar(g)

Flamco UK Ltd
Flexcon 110 - 1000, 6 bar(g) expansion vessels is intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Sealed systems maintain the operating pressure in heating and cooling s...

Airfix D 8 - 35

Flamco UK Ltd
The Airfix D expansion vessels, which can be used in storage boiler systems and pressure boosting systems, operate in such a way that the water flows right through and they are continuously flushed with fresh water from the mains. This prevents tepid, stagnant...

Cubexpak Type B

Flamco UK Ltd
The Cubexlpak is intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Same as a standard Cubex vessel but with a mounting kit that consist a safety relief valve and braided h...

Flexcon M 80 - 8000 - 10.0 bar(g)

Flamco UK Ltd
The Flexcon expansion vessel is intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Sealed systems maintain the operating pressure in heating and cooling systems, by using a...

Flexcon M 80 - 8000 - 6.0 bar(g)

Flamco UK Ltd
The Flexcon expansion vessel is intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Sealed systems maintain the operating pressure in heating and cooling systems, by using a...

Cubex 8 - 80

Flamco UK Ltd
Cubex 8 - 80, expansion vessels are suitable for use in For sealed heating and chilled water (cooling) installations. When the temperature in the installation rises, the system water will expand. The expansion water is stored temporarily in the expansion vess...

Flexcon V-B - 10.0 bar(g)

Flamco UK Ltd
The Flexcon VB intermediate vessel is used to protect pressurisation and expansion equipment from elevated temperatures on medium temperature systems....

Cubexpak Type A

Flamco UK Ltd
The Cubexpak is intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Same as a standard Cubex vessel but with a mounting kit that consist a safety relief valve and braided ho...

Flexcon VSV - 10.0 bar(g)

Flamco UK Ltd
The Flexcon VSV intermediate vessel is used to protect pressurisation and expansion equipment from elevated temperatures on medium temperature systems....

Flexcon VSV - 6.0 bar(g)

Flamco UK Ltd
The Flexcon VSV intermediate vessel is used to protect pressurisation and expansion equipment from elevated temperatures on medium temperature systems....

Airfix A 8 - 80

Flamco UK Ltd
The Airfix A expansion vessels, which can be used in storage boiler systems and pressure boosting systems, operate in such a way that the water flows right through and they are continuously flushed with fresh water from the mains. This prevents tepid, stagnant...

Airfix D-E-B

Flamco UK Ltd
Diaphragm pressure expansion vessel is intended for use on sealed heating and chilled systems. This expansion vessel may also be used on Potable (Wholesome) water systems....

Vesselpak Type B

Flamco UK Ltd
The Vesselpak is intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Same as a standard Flexcon vessel but with a mounting kit that consist a safety relief valve and braided...

Vesselpak Type A

Flamco UK Ltd
The Vesselpak is intended for use on sealed heating and chilled systems. The vessel is comprised of a high strength steel shell and butyl rubber diaphragm. Same as a standard Flexcon vessel but with a mounting kit that consist a safety relief valve and braided...

Airfix P 2 - 300

Flamco UK Ltd
The Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm....

EXPANSION VESSEL & NON-RETURN VALVE

Ariston Thermo UK Ltd
An expansion vessel is a device that takes up the expansion of water in the domestic hot water system when it is heated. This prevents build up of excess pressure. The non-return valve prevents backflow of expanded hot water in to the cold water main. ...