-Can a centrifugal pump be used at 100KPA?
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-Can a centrifugal pump be used at 100KPA? Previously, a magnetic pump was used; the presence of impurities in the material caused wear on the magnetic pump. I would like to ask the experts here whether a centrifugal pump can be used as a replacement for the magnetic pump, given that the temperature of the material is around 130°C.
If a magnetic pump works, then a centrifugal pump will surely also work well.
Isn’t there any way to overcome atmospheric pressure?
–100kpa? Are you sure about that? Still using a magnetic pump?
Magnetic pumps can overcome it, and centrifugal pumps can overcome it even better
When the import and export pressures are the same, there is no problem – is that what it means? Previously, when the pump inlet was at negative pressure and the outlet at atmospheric pressure, the centrifugal pump often failed to draw in liquid. The height from the tower to the centrifugal pump is insufficient to overcome the atmospheric leg.
The inlet pressure of the pump is very important; if it is too low, the centrifugal pump will not be able to deliver fluid. By using the equations related to pipeline characteristics, head formulas, and formulas for the minimum installation height, it can be determined that if the inlet pressure is -100 kPa, it is essentially impossible to use a centrifugal pump. If the ambient pressure is low, the height of the liquid column can be utilized to increase the inlet pressure of the pump
Magnetic pumps operate on the same principle as centrifugal pumps; if particles are present, a centrifugal pump can be used, and a double-end mechanical seal with a 53 or 54 flushing scheme should be selected
It is also necessary to check what the net positive suction head of the device is