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Expansion vessels for central heating boilers buy online

Expansion vessels for central heating boilers buy onlineExpansion vessels for central heating are often installed on modern central heating systems. The vessel does exactly what it says and takes up the expansion and contraction of the heating and cooling water. When you heat up water it increases in volume and it is this expansion that must be taken up by the expansion vessel. Boilers such as combination boilers or system boilers will normally have a vessel inside and when it comes to replacement the appropriate vessel produced by the central heating boiler manufacturer must be fitted. Conventional heating boiler or Heat Only boilers can be installed as a sealed system and will then require a safety valve and pressure gauge along with the expansion vessel. You will normally find that an expansion vessel intended for central heating use is coloured red or sometimes silver as they have a lower corrosion requirement than domestic water. When installing a safety valve kit it must discharge to a point of safety like over a drain or close to the external floor. This is due to the fact that the discharge water can be very hot. There is a wide range of vessel sizes to cater for system sizes and most vessel or boiler manufacturers will give an estimated vessel size for the system. In small domestic work a rough guide of 1/2 a litre per radiator often works but as the system becomes very large more accurate sizing will be required. Unvented hot water cylinder and domestic pumping station require Potable expansion vessels which will usually be coloured Blue or White but sometime will be stainless steel. This is due to fresh oxygenated being more likely to cause rusting. Whichever vessel you may require Clickon will be only too happy to help with advice. Buy expansion vessel online for U.K delivery now.
Created On  24 Apr 2015 15:14  -  Permalink

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