Can the pressure at the pump inlet be less than 0.1 Mpa?
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== Can the pressure at the pump inlet be less than 0.1 Mpa?
I don’t know what kind of pump you are asking about The inlet pressure of our pumps can be below one atmosphere, but ours are triple-screw pumps
All self-priming pumps have a self-priming height, which should be less than atmospheric pressure.
The inlet pressure of the bottom pump in all vacuum towers should be less than 0.1 MPa, right?
It’s definitely possible. The inlet pressure of all vacuum pumps, especially those that are multi-stage except for the first stage, is always less than 0.1 MPa-A. If the pressure is higher than atmospheric pressure, it’s necessary to release that pressure first before attempting to create a vacuum; otherwise, the efficiency will be very low.
This post was last edited by I love engineering on 2011-12-23 at 12:45. Sure, in our production we often encounter pumps that operate at pressures below atmospheric pressure, such as in vacuum distillation. But one thing to note is that if the pump operates at low pressure, its installation height must be reduced. We often see that pumps are installed below the tank, partly to enable automatic filling of the pump and partly to prevent cavitation. Therefore, for pumps that operate at low pressure, it is essential to pay attention to the installation height
Of course, it’s fine as long as the inlet is under negative pressure. I’m not sure what the original poster’s true intention is – is it that the pump inlet is too far off from the specified parameters?
The inlet pressure of the pump can be well below one atmosphere, depending on the properties of the pump.
See vacuum pump, self-priming pump~~~~~~~~~~
For low-boiling-point liquids, if the pump inlet operates for an extended period at a pressure lower than one atmosphere, cavitation can easily occur in the pump.
Sure. . . Lz should be for a certain operating condition, for a certain type of pump