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Circulation pump for ventilation

Circulation pumps for heating and hot water supply systems are designed for forced circulation of hot water in the local pipeline. The operating conditions of such pumps are quite specific, since there is a high temperature of the pumped water, and mineral salts are present in the water, which eventually settle on metal surfaces.

For hot water systems, an important function of circulation pumps is sanitary and hygienic. Stagnant warm water is an excellent breeding ground for the reproduction of various pathogens. The practice of European countries shows the high sanitary efficiency of the use of circulation pumps, while the circulation does not allow the water in the pipes to cool down to less than 60 0C, which prevents the reproduction of pathogenic microbes.

< p>Circulation pumps for hot water supply differ in design and materials from pumps for heating in that special coatings are applied to their moving metal parts to prevent the deposition of mineral salts. This is due to the fact that hot water pumps have to work with water of an aggressive salt composition, and heating system pumps operate in specially prepared, demineralized water.

Circulation pumps for heating systems make it possible to abandon the system of gravitational supply of the coolant, which gives significant savings in the materials of the heating system and increases the durability of the system due to a significant decrease in pressure in boilers and pipelines.< /p>

Circulation pumps can also be used in modern air conditioning/heat recovery systems built on the basis of an air conditioner and a heat accumulator, a solar accumulator, etc.

The use of circulation pumps improves the economic efficiency of hot water and heating systems. Firstly, there is a sharp decrease in the material consumption of the system due to the refusal to use large diameter pipes. Secondly, there is no need to maintain a constant high water pressure in the system, which saves energy resources during the operation of the pressure pumps, and increases the durability of the system. Thirdly, the performance of the system is increased due to the absence of places for stagnant water, and consequently, a local decrease in its temperature.

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