Which type of pump is suitable?
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This post was last edited by foam_ZPTK on 2018-1-28 at 21:34. The inlet pressure is -20 kPa; there are no requirements regarding flow rate – what type of pump would be suitable?
You have too few parameters; there is inlet pressure, but what about outlet pressure? Also, the name of the medium, temperature, flow rate, etc
With just this one condition, there are tons of options to choose from~~~~ For pumps of the positive displacement type, the poster should decide on one based on these conditions~~~~
No specific requirements are imposed on the outlet pressure; since the outlet is used for venting, a flow rate of twenty to thirty liters per minute is sufficient. The temperature should be at room temperature, and the medium is water
I originally wanted to choose a diaphragm pump, but it’s too small and I’m not sure which brand is good
You just need to buy a small water pump with a flow rate of 1.2–1.8 cubic meters per hour. There are many companies that do this, such as Southern Pump Industry and Grundfos
There are too few conditions; with these criteria, there are too many pumps to choose from
The key is that it needs to be small – the smaller, the better. Any good recommendations?
Magnetic pump models can do without a bearing housing, resulting in a relatively smaller size; however, their price is higher. Using one for clean water is quite extravagant.
It is mainly due to import pressures; pumps with a high net positive suction head are required