Mankind has been using pumps since antiquity. Now they work almost everywhere - they supply water in water pipes, pump air out of a lamp to create a vacuum. In addition to water and air, pumps work with oil, gasoline, milk and even cement.
But the pump cannot work by itself. Electric motor and pressure /vacuum regulator required. Throttling is most often used. In this mode, the engine runs at full speed, and the pressure in the system is controlled by shut-off valves (gate valves, valves, outlets, ball valves, etc.). It is clear that it cannot be used permanently.
Frequency converters allow rational and efficient control of pumps. They are needed in order to ensure the supply of the required amount of energy to maintain the desired pressure /vacuum level in the system. This saves up to 30 percent of electricity. Considering that the engine consumes more than its cost during operation, this figure is impressive. So the converter will pay for itself very quickly.
The level of water consumption for domestic needs is highly dependent on the time of day. At the same time, a large number of people may need to shower and wash in the evening, while less water is consumed at night. Hence the poor water pressure during peak loads, pressure surges, which leads to rapid wear of pipes and valves. Nowadays, this problem can be solved. This requires improving the overall efficiency of water supply management (maximizing results while minimizing energy consumption and investment in equipment upgrades).
The frequency converter for the pump will solve all the problems that arise. Statistics claim that it saves 30 to 50 percent of electricity and pays off in a year and a half. This is possible due to the fact that the converter can change the motor speed in a wide range. Therefore, only as much energy will be consumed as is required to maintain the optimal pressure in the system. At the same time, the level of current water consumption does not matter.
