The power transmitted by the main motor to the pump shaft during pump operation is called shaft power, which can be represented by the letter P and is expressed in kilowatts (kW). The power obtained by using the fluid of the energy-saving pump per unit time is called effective power, which can be expressed in Pe. The efficiency of energy-saving water pumps is related to the design level and mechanical processing level of the pump itself. The level of efficiency directly affects the energy consumption of the water pump. The water pump has its own efficiency range, and when selecting a water pump, it is necessary to always fall within this efficiency range in order to reduce energy consumption.

speed

The speed of the water pump shaft per minute is called the pump speed, which can be expressed in N, usually in r/min. The speed usually corresponds to the standard speed of the motor, and can be adjusted using frequency conversion to achieve high energy-saving effects.