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Expansion vessel - designed for accumulating hydraulic energy of water and its subsequent use. The hydroaccumulator in the water supply system serves as a damper that can absorb both a volume increase or a sudden pressure surge, as well as compensate for minor water consumption to reduce the frequency of pump operation.
Water is practically incompressible, so even the slightest leakage in the water supply system or the instant opening of a tap will cause a sharp decrease in pressure and subsequent pump activation. The smallest volume increase, even resulting from the expansion of heated water, can lead to a sharp increase in pressure and the destruction of water supply system elements.
The principle of operation of the hydroaccumulator is based on the accumulation of hydraulic energy of water with its subsequent use. During pump operation, part of the energy is spent on compressing the air that fills the internal volume of the tank and filling it with water. After the pump is turned off, the compressed air maintains pressure in the water supply system, and minor water consumption is compensated by water displaced from the tank.
Hydroaccumulators are used in cold and hot water supply systems for:
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