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Selecting high-temperature corrosion-resistant pumps is a real challenge!

2016-06-17View Original

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Condition ①: Flowing medium: molten sulfuric acid; Temperature: 280 °C; Flow rate: 610 m3/h; Head: 35 m. Condition ②: Flowing medium: molten ammonium hydrogen sulfate; Temperature: 320 °C; Flow rate: 523 m3/h; Head: 35 m. Condition ③: Flowing medium: molten ammonium hydrogen sulfate; Temperature: 320 °C; Flow rate: 57 m3/h; Head: 30 m. At such high temperatures, bearing connections present problems as well, and it’s absolutely impossible for motors connected directly to transmit heat in such conditions.
Reply #22016-06-17
I just checked your technical requirements. Given your current needs for corrosion resistance and operation at high temperatures, it’s necessary to use a magnetically driven pump. The HIMC magnetically driven chemical process pumps meet all of your requirements, as I saw from the specifications available online for this type of pump. You can go and search for it specifically, and then get in touch with the other party
Reply #32016-06-17
This pump is still strong; Foss really sharpens it well
Reply #42016-06-17
It’s a bit difficult; keep an eye on this post to see which pump would be suitable. . .
Reply #52016-06-18
Choose the model with dual supports; the pump cover is equipped with a water jacket for cooling, and the bearing housing also has a water jacket for cooling. As for the material, I’m not very familiar with the medium used in the system
Reply #62016-06-18
Take a look at the Lewis pump: temperature isn’t an issue; corrosion resistance is
Reply #72016-06-19
If needed, we can provide the materials, and the results of the relevant corrosion resistance tests are already available. It can meet the process requirements. What concerns me is the way in which the bearings are connected; the temperature of the medium has a direct impact on the operation of the motor. To be honest, magnetic drive systems are a bit expensive.
Reply #82016-06-19
If required, we can provide materials resistant to corrosion; the relevant corrosion resistance tests have already produced results. It can meet the process requirements. What concerns me is the way in which the spindle bearing is connected to the motor; the temperature of the medium has a direct impact on the operation of the motor. To be honest, magnetically driven pumps are a bit expensive.
Reply #92016-06-19
A vertical centrifugal pump with an outlet at the top can be used; it is similar to a submersible pump, and features sliding bearings that are flushed with a medium as well as a cooling jacket
Reply #102016-06-20
This post was last edited by tomtom999999 on 2016-6-20 08:18 with the question: What could cause this? Possible reasons
Reply #112016-06-20
. With samarium-cobalt? How corrosive is it?

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