Q: Why is the pump with high lift easy to burn the motor with low lift, not the larger the lift, the better?
A: This problem is the most encountered in our actual customer process, the pump head selection mainly depends on the form of the pump. If it is a positive displacement type, such as piston pump, screw pump, scraper vane pump gear pump, diaphragm pump, the lift exceeds the rated value, the pressure increases, the pump load increases, and the motor is easy to burn; For speed pumps, such as centrifugal pumps, the situation is just the opposite, low head but make the pump flow is large, the load is increased, and the pump is easy to burn. Therefore, before the large centrifugal pump starts, the outlet valve should be closed, and the operation is gradually opened.
