FGI FD590 Solar Pump Inverter constant pressure water supply solution

VFD pumps are also known as pump variable frequency controllers. In recent years, variable frequency pumps are widely used in constant pressure water supply systems, fire fighting equipment, high-rise building water supply systems, water treatment equipment, environmental engineering and other fields.
1.Disadvantages of traditional water supply systems

The traditional water supply system consists of a water tower, high water tank or pressure tank pressurizing equipment.

Compared with the modern variable frequency pump water supply system, the traditional method has a higher equipment investment cost.
When using these traditional water supply systems, it has a large pump shaft power and energy loss.
It is likely to cause secondary water pollution.

With the FD590solar pump inverter, you can quickly create an economical constant pressure water supply system with significant energy savings.
2.The benefits of using the FGI FD590 solar pump inverter
Using FD590solar pump inverter can save 20%-40% of the power, environmental protection and energy saving.
The system covers a small area, less investment, high efficiency.
It has the characteristics of high configuration flexibility, high degree of automation, rich functions and stable performance.
Reasonable operation, soft start and soft stop, can eliminate the water hammer effect. As a result, the torque and wear of the average motor shaft are greatly reduced. It not only reduces maintenance costs, but also greatly improves the service life of the pump and the entire water supply system.
The constant pressure water supply system directly obtains water from the water source, reduces secondary pollution and effectively prevents the spread of infectious diseases.
Communication control: Variable frequency pump system can help you achieve unattended control, saving manpower.

3.Energy conversion criteria in variable frequency pumps
Pump flow is proportional to the speed of the pump (three-phase asynchronous pump), pump head is proportional to the square of the pump speed, pump shaft power is equal to the product of flow and head, so the pump shaft power is proportional to the third square of pump speed. According to these formulas, we can know that changing the speed of the pump is to change the power of the pump.
The basic formula is:
In these formulas, Q represents the flow rate, N represents the pump speed, H represents the head, and P represents the shaft power.
For example, if we change the power supply frequency from 50Hz to 45Hz, then P45 / P50 = (45/50) ³= 0.729, P45 = 0.729 P50. If we change the power supply frequency from 50Hz to 40Hz, then P40 / P50 = (40/50) 3 = 0.512, P40 = 0.512 P50
The pump water supply system is designed according to the needs of the actual situation, but the actual use of the water supply system does not necessarily reach the maximum amount of water, so the valve regulation system increases the resistance to the throttle valve. In this case, a lot of power is lost. Using the FD590solar pump inverter can make the system work smoothly and steadily, by changing the speed of the pump to adjust the water supply, which is the reason why the constant pressure water supply system is high energy efficiency and low cost.

4.FGI FD590 solar pump inverter common application

Domestic high-rise building water supply system, urban and rural residents water supply, enterprises and institutions, etc.
It is also commonly used in various industrial constant control needs, such as cooling water, heat network water circulation, boiler water supply and so on.
You can also find FD590solar pump inverter in a wide range of applications in water plant booster systems d. It is also used in irrigation, sewage treatment and artificial fountains.
Other fluid constant pressure control systems.

If you are interested in FD590 solar pump inverter, or would like to know the parameter Settings and wiring diagram, please contact us and our technical support will get back to you as soon as possible. If you plan to use solar energy to power your water pump, check out our solar water pump inverters.