Can a positive displacement pump be easily damaged from frequent start-stop operations?
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The positive displacement pumps used in petrochemical plants are started and stopped frequently; is the diaphragm, which is similar to that in reciprocating pumps, prone to damage?
I think frequent starting and stopping is harmful to any device
Frequent start-stop cycles place significant stress on the seals of mechanical pumps, easily leading to seal damage
This condition causes no damage to the pump, but it does cause significant damage to the motor
It should be determined based on the instructions whether the pump can be started and stopped frequently.
As long as the preparations before startup and the measures after shutdown are carried out properly each time, the impact is minimal