Centrifugal pump inlet under pressure
Thread Content
I would like to ask: if there is a pressure of about 3 kilograms at the inlet of a centrifugal pump, does this have any impact on its operation? For example, could it increase the likelihood of seal leakage?
Importing pumps under pressure imposes higher requirements on the pressure resistance of the pump body; the greater impact is on sealing. For a pressure of 3 kilograms, the impact is relatively minor
When selecting a pump, considerations are taken into account regarding the pump’s outlet pressure; the sealing mechanism does not have a significant impact, and even if there is some effect, the sealing can be modified at any time.
The question is too general; if the pump itself is manufactured according to such process parameters, there should be no problems, it depends on the operating conditions.
There is definitely an impact, but the pressure at the pump’s seal should generally not exceed the pump’s own pressure. So you just need to find a way to reduce the internal pressure of the pump so that it doesn’t go above its maximum pressure
:), Hello, to determine whether pressure has an impact, two aspects need to be considered: 1. Is the pressure stable? As long as the pressure isn’t constantly fluctuating, consider the next one ； 2. It is necessary to check the outlet pressure of the pump. When the inlet pressure of the pump increases, it will inevitably affect the outlet pressure of the pump; therefore, the pump’s temperature-pressure-material curve needs to be taken into consideration ； Judging from the increase you’ve observed, as long as extreme operating conditions are not chosen, this additional pressure will not affect the mechanical seal or the pump~
What do you mean by that question? Is it abnormal for the inlet to be under pressure? For the mechanical seal, it’s just an extra 3 KG of pressure. If it was a pump that wasn’t under pressure originally, then the cause needs to be identified.