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How to remove scale from circulating water

2009-09-02View Original

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The vacuum pumps used in my company have developed scale due to water contamination; this scale almost blocks the pump body and impellers. The main component of the gas being evacuated is **. I would like to ask fellow users how to reduce the formation of scale and thus minimize the need for repairs. Thank you very much
Reply #22009-09-03
Adding corrosion and scale inhibitors can solve this problem. 5% hydrochloric acid for cleaning.
Reply #32009-09-03
It’s probably because the hardness is too high; the hardness can be reduced first. There are many methods to remove hardness, and you can choose one based on your requirements
Reply #42009-09-03
The primary reason for water scaling is the attainment of the concentration product; if the water quality cannot be improved, it is recommended to adjust the pH value of the water. Of course, it is necessary to consider whether this will have an impact on the materials being used. If such an impact does occur, then the only solution is to use water treatment methods to reduce the hardness of the water
Reply #52009-09-03
Adding a scale inhibitor to the circulating water can solve this problem.
Reply #62009-09-04
This post was last edited by li*ch1968 on 2009-9-4 at 18:59. Methods for dealing with scaling: 1. Reduce the hardness of the raw water and carry out relevant pretreatment. 2. Add high-efficiency scale inhibitors, such as HEDP, PBTCA, etc. 3. Electric field treatment can also play a role in preventing scale formation; learn more about this aspect.
Reply #72009-09-04
Solving the water quality issue is key; there is no more reliable solution.
Reply #82009-09-05
Thank you to the users upstairs. I’d like to add a few more points: mainly, when vacuuming is performed, **liquid gets drawn into the water tank; water then circulates back into the pump. As a result of vacuuming, the water temperature rises, which increases the likelihood of scale formation. I hope everyone can provide more detailed information on this topic. Thank you

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