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Worcester Expansion Vessel Assembly 8716117023

The Worcester Bosch expansion vessel is a tool for managing water expansion brought on by temperature changes in a heating system or hot water system. When water is held under pressure, such as in a sealed heating system or an unvented hot water cylinder, it expands as its temperature rises. The usual structure of an expansion vessel is a cylinder or disc with two compartments within, separated by a diaphragm made of rubber.

  • Fits multiple appliances

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