Consider the main types of heating appliances used in Russia. Aluminum radiators. Made of material with high thermal conductivity, but also places high demands on chemical composition of the coolant. Excellent design execution of most radiators ports must be installed on each device automatic valve for venting, as during operation there is an active hydrogen evolution. Currently, the market offers a large selection of aluminum radiators as a working pressure up to 6 atm. And a working pressure of 10-30 atm.
That suggests the possibility of their use in urban development. It should be noted particularly the group of aluminum, extruded heat sinks, cheaper, lighter and more vulnerable to adverse conditions steel panel radiators. This high-performance thermal units calculated in most cases, a working pressure of 8.7 atm., crimp 13 atm. They are recommended for use in individual, low-rise building, while in the presence of individual substation – in buildings of any height. And do not try to feel when working on a system with multiple high pressure values, especially where there is a possibility of water hammer (high-rise urban buildings with central heating system). Their life in this can be reduced to one year and even up to several months. In the Russian market of steel panel radiators most widely used brands Bimetallic sectional radiators successfully combine the best properties of aluminum sectional and tubular steel radiators: strength (withstanding pressure up to 40-50 atmospheres), durability (service life – up to 20 years) and high level of heat in combination with modern design. Official site: NYC Marathon.