Vibrations in pumps may be caused by improper motor-pump?

Improper alignment of the motor and pump is a crucial factor that can lead to vibrations in pump systems. When the driving motor is not properly aligned with the pump shaft, it can cause uneven loads on the bearings and components of the pump. This misalignment results in excessive wear and may lead to increased vibrations during operation.

Proper alignment ensures that the motor and pump are perfectly positioned such that the rotational line of the motor's drive shaft matches that of the pump. When aligned correctly, the forces are evenly distributed throughout the system, reducing the chances of vibration, wear, and potential failure. Regular checks for proper alignment are an essential part of maintenance practices in pump systems to ensure optimal performance and longevity.

Other options, while relevant in different contexts, don't directly relate to the specific cause of vibrations in the system in the same way that alignment does. For example, curves relates to the pump's performance characteristics influenced by design, piping refers to the layout that could affect flow and pressure, and power factor pertains to the efficiency of electrical systems, which do not inherently cause vibrations in the same direct manner as alignment does.