Worcester Expansion Vessels
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 87161165190 Expansion Vessel - 10L - Greenstar/RD](/userfiles/images/products/2241939.jpg)
Worcester Bosch 87161165190 Expansion Vessel - 10L - Greenstar/RD
Part No: 2241939 / MPN: 87161165190
![Worcester Bosch 8716119294 Expansion Vessel - Greenstar/Danesmoor](/userfiles/images/products/1013105.jpg)
Worcester Bosch 8716119294 Expansion Vessel - Greenstar/Danesmoor
Part No: 1013105 / MPN: 8716119294
![Worcester Bosch 87161425030 Mini Expansion Vessel - Ha50 - 24i/28i](/userfiles/images/products/1018305.jpg)
Worcester Bosch 87161425030 Mini Expansion Vessel - Ha50 - 24i/28i
Part No: 1018305 / MPN: 87161425030
![Worcester Bosch 87161133040 Greenstar Expansion Vessel Connector](/userfiles/images/products/1021875.jpg)
Worcester Bosch 87161133040 Greenstar Expansion Vessel Connector
Part No: 1021875 / MPN: 87161133040
![Worcester Bosch 87161425000 Expansion Vessel - 10 Litres - CDi/SBi](/userfiles/images/products/1018301.jpg)
Worcester Bosch 87161425000 Expansion Vessel - 10 Litres - CDi/SBi
Part No: 1018301 / MPN: 87161425000
![Worcester Bosch 87161425020 FSN Expansion Vessel - 8Ltr 389 Diam - 24i/28i/30i](/userfiles/images/products/1018303.jpg)
Worcester Bosch 87161425020 FSN Expansion Vessel - 8Ltr 389 Diam - 24i/28i/30i
Part No: 1018303 / MPN: 87161425020