The concentricity of the pump is the coaxial degree of taking motor shaft as the active shaft and the pump shaft.
When the pump and the motor shaft concentricity deviation is too large, the pump will be harmful. Long-term operation of the pump and the motor shaft is not the heart of its bearing (or bearing) will be serious wear and tear caused by equipment damage; pump and motor shaft heart will also make the pump running noise and vibration, shorten the pump life, and affect the pump efficiency.
Therefore, the concentricity of the pump should be carefully installed during the test adjustment.