The pressure value on the pump outlet is set as a parameter in the water supply equipment. The output frequency is controlled by PID inverter and the rotating speed of pump motor is consequently adjusted to keep the water system pressure constant as the preset pressure value.
When the water consumption increases, the frequency is increased accordingly to accelerate pump speed. On the contrary, when the water consumption reduces, the frequency is decreased to reduce the pump speed. In this way, a sufficient pressure (same as the preset value) and water supply (which fluctuates according to the water consumption of the users) in the entire network is guaranteed.
This device features stable pressure, non-frequent operation, high efficiency, energy saving and low noise, which can be used to replace traditional high-positioned water tanks or water towers.
24 hours constant pressure and automatic activation of auxiliary pumps according to pressure signals
Smooth start, which eliminates water hammer and extends the service life of motors and pumps
Protection against under or over voltage, overcurrent, overheat, overpressure as well as no-load of water
Optional functions available on customer’s demand, such as motors in-turn running, sleep mode, etc.
Digital PID control, which is better than PLC logical control
Stable operation and easy handling due to high automation and intelligence level
100% factory tested with very low failure rate
Communities, villas, office buildings, high buildings, hotels, restaurants, etc.
Boilers (cold and hot water)
Pressure boosting in water plant
Industrial production
Cooling water circulation system
Fire fighting
Power: 380 V, 50 Hz (60 Hz on request)
Ambient temperature: 0 - 40°C, relative humidity up to 90%, no condensation
Medium: Clean water or other liquids similar to water in physical and chemical properties
PH value: 5 - 9
Liquid temperature: 0 - 70°C
Altitude: up to 1000 m, slope of the base up to 5 degree