Pump frequent start will reduce the service life, I ask what kind of frequency is called frequent start?
Personally think that the quality of different motors have different effects on the motor, you can try, try a minute it ruined his frequency is a / S
Pump is the same, often start, not just reduce the service life of the pump, motor, contactor life will be shortened.
How to define this frequently, this can only say, for example, the life of the switch is 60 thousand times, once every hour you move, it can be used for a long time, and that if you move one minute, it would not necessarily for long.Pumps frequently start the first self wear problems, as well as the impact on the pipe network, especially the soft connections.Water pump if the frequency of use or time, it is recommended to adopt: variable frequency constant pressure control.