Question. Are there any problems assoc with running a motor-pump too slow or too fast? Someone in the past has told our production staff that a particular inverter driven motor shouldn't be run at less that 20Hz or greater than 45Hz to protect the motor. ???
Right now there is a bypass line tee'ing off just after the pump outlet which routes back to the tank that the pump is feeding from. In order to have the material delivered at the proper rate, the valve in this bypass line is adjusted so that some of the pumped material returns back to the tank.
I would like to do away with this bypass line arrangement and just have the pump operate at a slower speed.. to pump just the required amount of material.
Right now there is a bypass line tee'ing off just after the pump outlet which routes back to the tank that the pump is feeding from. In order to have the material delivered at the proper rate, the valve in this bypass line is adjusted so that some of the pumped material returns back to the tank.
I would like to do away with this bypass line arrangement and just have the pump operate at a slower speed.. to pump just the required amount of material.