Worcester Bosch Expansion Vessel Mounting 8716117022

The Worcester Bosch expansion vessel mounting, part number 8716117022, is the bracket and clamp assembly that secures the expansion vessel inside the appliance casing. It is a Worcester Bosch spare listed under brackets, clamps and mountings, and it belongs to the Greenstar i ErP System boiler family. Its job is to hold the vessel rigidly in position so it can absorb the pressure changes in a sealed heating circuit without shifting, twisting or vibrating against the casing.

• The expansion vessel is loose or can be moved by hand within the casing
• Rattling or vibration noise from the vessel area during firing or pump operation
• Visible corrosion, cracking or distortion of the bracket or clamp
• The vessel sits out of line with its connection point
• Fixings no longer hold the bracket firmly to the casing

• Check the GC number and the appliance data plate to confirm the model matches the compatibility list.
• Quote part number 8716117022 when ordering; 1031063 is also listed against this item.
• Confirm the appliance model before ordering, as this mounting is used across several Greenstar i ErP System variants.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.