Selection of pumps for transporting liquid media in vacuum systems
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Dear sea friends: There is currently a system with a vacuum level of 90 KPa (absolute pressure of 10 KPa), and it is necessary to transfer a liquid medium to a storage tank at atmospheric pressure. After some research, I found centrifugal pumps with a suction lift of 7–8 meters, as well as positive displacement pumps such as gear pumps and reciprocating pumps. The specific gravity of the liquid is 1.2. Do any of you have any good recommendations? Or are there any pump manufacturers? We can communicate and cooperate!
Are there detailed data on the equipment installation locations and pipeline configurations, etc.?
The installation location is on the same plane as the storage tank, allowing for a one-meter static pressure to be maintained. A discharge head of 20 meters is sufficient!
As long as the device’s net positive suction head is greater than the required net positive suction head for the pump, that should be fine, right?
German side-channel pumps are the best choice – they can pump soda mixtures, but they are very expensive. There doesn’t seem to be any in the domestic market.
Those who need turbomolecular pumps can contact me
Should we consider using a vacuum pump for vacuum drainage?
It’s already close to a vacuum state – is it still possible to draw in more air?