Worcester Expansion Vessels (Page 2)
The expansion vessel is a small chamber that is used to protect closed heating systems from pressure surges. The pressure vessel is filled with air that acts as a cushion against surges in pressure within the system.
Worcester Bosch 87161425000 Expansion Vessel - 10 Litres - CDi/SBi
Part No: 1018301 MPN: 87161425000
Worcester Bosch 87154072960 Expansion Vessel - 7L - EMS Combi/Classic/Danesmoor
Part No: 1013107 MPN: 87154072960
