The circulation pump is a device that is used to generate liquid circulation in central heating installations, as well as other heating systems and air conditioning. In this way, performance and efficiency of the entire system are ensured. Many newer boiler models It is adapted to work with circulation pumps, and there are more and more often those that are factory -equipped with them.
In this article we will describe the most important functions fulfilled by circulation pumps And we will tell you which parameters should be noted during their selection.
What is the circulation pump for?
Pump operation is based on the basic principle of changing mechanical energy to kinetic energy or potential liquid energy in circulation. The pump, or rather the rotor of the pump, transmits its energy energy, thanks to which it sets it in motion. In this way, water in the heating system can reach the most distant radiator.
Circulation pumps are most often mounted where gravitational heating cannot be used, which consists in using the phenomenon of changing the density of water caused by its temperature. Such heating have many restrictions, besides, they cause slow heating of radiators and can contribute to the use of a large amount of energy. Circulation pumps are a much more efficient alternative.
Choosing a circulation pump: What parameters to consider?
In the case of circulation pumps, the basic parameters are: flow rate (i.e. efficiency) and lifting height. The lifting height is the pressure that the pump must give a pressed liquid in circulation. This is the value given in the meters of the water pole, and the recommendations regarding this parameter may vary depending on the specifics of the installation or the diameter of the pipes.
Sometimes it is difficult to clearly adjust the pump with appropriate parameters, especially with small central heating installations. However, in the case of installations for single -family houses, very often the parameters of the circulation pump are provided in the sanitary industry project. In addition, on the manufacturers' pages we can often find tools prepared for customers to calculate the necessary flow rate and pump lifting height.
