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Medium ammonium sulfate, with 40% particle content, at room temperature; what other materials are available? Which mechanical seal and flushing scheme is better?
Sulfuric acid AN contains a large amount of particles and crystals; the material used for pumping must be corrosion- and wear-resistant (for metal materials, use duplex steel CD4Mcu; for non-metallic materials, use ultra-high molecular weight plastic lining). The impeller should be of the semi-open or fully-open type, and the mechanical seal should be of the double-end type with flushing functionality. The friction pairs should be of a hard-on-hard design
Is the dual seal 52 or 53? What is rinse fluid? Internal flushing or external flushing
This post was last edited by Meng Cheng from Longgang Pump Industry on 2017-4-20 at 15:24 – water can easily get into the medium! Double sealing also cannot guarantee it. It’s still expensive!
It’s made of material 904; experience has shown that 316L machine seals don’t last long.
CD4Mcu is designed specifically for thiamine; the material you used is not suitable, which is why it isn’t durable. The 52 solution generally involves using 11 combined with 52, or 01/02 combined with 52. It’s absolutely impossible to use this solution if the medium contains particles. Although the 53 solution is good, it’s expensive, requires an external pressure source, making it difficult to choose a suitable buffer fluid. Additionally, the mechanical seal is prone to leakage (allowing buffer fluid to leak into the medium), resulting in incalculable costs for maintenance and use in the long run! Please choose carefully! Add WeChat if needed! Hope this helps!
316 stainless steel should work; a power-sealed vertical pump can be used
Slurry pumps from Yixing will do; open impellers or fluoroplastic impellers
Is a flow rate of 800 cubic meters per hour achieved using a cantilever type or a double-suction axial split design?