Enhanced Functionality for Pump Manufacturers

Challenge

An international pump manufacturer wanted to have a better integration of the motor in the pump. In this case the task was to design the pump cover so that it simultaneously acted as motor flange – allowing the overall length of the unit to be significantly reduced. Additional requirements included the possibility of using the widest range of media and mounting an inverter integrated in the motor.

Solution

A special bearing plate and a special shaft to hold the impeller were used for the pump geometry. Further, a seal was inserted between the pump and motor space in a special bearing end plate. The pump can be used for pumping different media as a special coating is applied to the aluminum and grey cast iron bearing endshields. The inverter was able to be integrated in the motor by using a specially designed adapter on the motor terminal box.

Advantages

Significantly shorter length, therefore the coupling and coupling cover were able to be eliminated
Compact unit in conjunction with the required electronics
Significant energy saving by simply adapting the operating point using the inverter integrated in the motor
The number of spare parts was significantly reduced as a result of a lower number of components