Bosch Expansion Vessel 87161425040

Worcester Expansion Vessel 87161425040

This expansion vessel is for use in 240 and Danesmoor appliances.

This part fits Worcester:

Worcester 240 BF Combi,

and Worcester 240 RSF Combi

also Worcester 240 OF Combi.

And Worcester Danesmoor:

Worcester Danesmoor 12/14-RSO-GB SYS,

with Worcester Danesmoor 12/14-OSO-GB

also Worcester Danesmoor 12/14-OSO-GB SYS.

plus Worcester Danesmoor  12-25 OOO

and Worcester Danesmoor 15/19 RSO SYS,

with Worcester Danesmoor 15/19-OSO-GB

plus  Worcester Danesmoor 15/19-OSO-GB SYS.

also Worcester Danesmoor  20/25-RSO-GB SYS,

Worcester Danesmoor 20/25-OSO-GB

and Worcester Danesmoor 20/25-OSO-GB SYS.

A chamber designed to protect water heating systems from excess pressure.

This is filled with air which acts as a cushion against system pressure surges