The Vokera diverter valve is a mechanism that only appears in combi boilers. It allows the hot water to be redirected to the central heating (radiators, etc.) or to the domestic hot water system (taps, etc.). This feature is what makes a combi boiler so popular due to the fact.
Fits a number of vokera boilers
Technical specification
TypeManifoldMaterialMetalColourBrassSupplier Part Number10020439Brand NameVokera