Centrifugal pump selection
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This post was last edited by foam_ZPTK on 2018-4-23 at 16:29. Operating conditions: temperature of 80 degrees; the material consists of crystal particles. In the past, the mechanical seals, impellers, and pump shafts of stainless steel centrifugal pumps were often damaged. Is there any pump suitable for such operating conditions?
The composition of the material needs to be explained further; the more detailed the operating conditions, the better. The medium contains crystals. A slurry pump equipped with a double-end face seal (with flushing) can be used
You can try a pneumatic diaphragm pump, but it cannot be used for extended periods at a temperature of 80 degrees.
A 30% ammonia salt solution, at a material temperature of 80 to 90 degrees, is pumped into a centrifuge for solid-liquid separation; if a seal with flushing functionality is used, it will increase water pollution
Why do pump shafts get damaged frequently, and where do the damages occur? We have similar operating conditions here; we use horizontal centrifugal pumps with double-end face seals, and they work very well :)
If you want to make the most of this operating condition and ensure it works properly, it is recommended to use dual-sealed cooling water; as for the issue of contamination you mentioned, that will be discussed separately.
The process medium itself is a solution, and deionized water is used as the sealing fluid, so there is no risk of contamination