In rather long systems of water supply or heat conductors there is always a probability that at change of temperatures a possibility of deformation of pipes. That to avoid it, different types of compensators, but the most widespread - bellows-sealed the BKKB type are applied. Such compensators are very simple in installation, and at the same time, possess very successful combination of the parameters allowing to use them in various conditions - at a temperature up to 100 degrees and with working pressure up to 25 atmospheres.
The design of the bellows-sealed compensator allows to use it at any time as it is completely ready to installation - is supplied with branch pipes under welding or a threaded connection. Rather high rates of compensation - to 50 mm give the chance to use compensators of this kind in multystoried buildings. The bellows-sealed compensator of systems of heating of BKKB axial also is self-directing and having movement limiters. In such compensator due to use of a special design losses of pressure are excluded that is very important. Very conveniently for the fact that in an installation time the compensator of this type is not overwound what guarantees quality of installation.