Is it okay to use a counter-circulation shielded pump to pump liquid from a tank under vacuum?
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Is it okay to use a counter-circulation shielded pump to pump liquid from a tank under vacuum?
It’s possible with an external flushing pump! It is best to choose a self-priming type
Thank you for your reply! Happy New Year!
It is not recommended to use a self-priming pump in combination with an alarm; instead, it is advisable to use a magnetic pump along with nitrogen pressure to ensure a cleaner unloading process
This is operated under vacuum conditions; pressure cannot be applied. Can a counter-circulation shielded pump balance vacuum?
It won’t have any impact. As long as the net positive suction head and installation height are fine, that’s acceptable. It can be exported with an inducer wheel for one-time pressurization. Furthermore, the amount of reverse circulation and the extraction volume differ greatly, so it will not affect the vacuum level
This post was last edited by cilebeng on 2016-2-18 09:52. In principle, it’s possible, but shielded pumps are very difficult to repair, and they aren’t suitable for handling impurity particles. What exactly is the medium you plan to use? Are there any impurity particles or the like? If durability is a concern, magnetic pumps are still the recommended choice; they can handle the presence of impurity particles and still achieve the desired state of balance in circulation. They enable vacuum liquid extraction, with an efficiency that is 10-15% higher, while requiring less motor power
It mainly addresses the impact of vacuum level on pump operation. Of course, magnetic pumps are also good! :lol
The main goal is to achieve pressure balance so that fluid can flow properly. What kind of medium are you pumping, and why are you using a shielded pump?
Firstly, considering the special properties of benzene as a medium, as well as factors such as carcinogenicity, leak-proof pumps, shielded pumps, and magnetic drive pumps must be used. For circulation pumps, the rotor of shielded pumps tends to overheat, which can lead to cavitation. How do you address this issue when choosing shielded pumps?