Worcester Bosch Expansion Vessel 8716117023
The Worcester expansion vessel is a device to handle the expansion of water in a heating system or hot water system due to increases in temperature. When water increases in temperature it expands, in particular when it is stored under pressure such as in a sealed heating system or an unvented hot water cylinder.
Expansion vessels typically contain a cylinder or disc which is divided inside into two compartments separated by a rubber sheet, known as the diaphragm. Inside the expansion vessels there is water on one side of the diaphragm and air or an inert gas such as nitrogen under pressure on the other side. An air valve just like those found on bicycle and car tyres is typically provided around the air side to allow the unit to be re-pressurised.
This Part Fits :
Worcester GREENSTAR ERP SYSTEM 9I
Worcester GREENSTAR ERP SYSTEM 12I
Worcester GREENSTAR ERP SYSTEM 15I
Worcester GREENSTAR ERP SYSTEM 18I
Worcester GREENSTAR ERP SYSTEM 21I
Worcester GREENSTAR ERP SYSTEM 24I
Worcester GREENSTAR ERP 25I
Worcester GREENSTAR ERP 30I
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