Expansion vessels and pressurisation units in a large range of sizes for use with sealed heating and hot water systems.

When designing new commercial heating and hot water systems we advise customers to install a sealed system where possible. Improved efficiency and easier maintenance are just some of the benefits of using a sealed heating system.

You can read more about the differences between sealed and open heating systems here.

See our full range of pressurisation units and expansion vessels matched for use with Hamworthy commercial boilers.