Mini Expansion Vessel – HA50 87161425030
Worcester Bosch Mini Expansion Vessel – HA50 87161425030
This part fits:
- Worcester 24I NG FSN COMBI
- Worcester 28I NG FSN COMBI
The expansion vessel is a small chamber that is utilised to protect closed water systems from pressure surges. The tank is filled with air that acts as a cushion against surges in pressure within the system.