Chemical pump selection knowledge
2022-11-13 18:04:40
1, the type and performance of the selected pump are in accordance with the requirements of process parameters such as device flow, head, pressure, temperature, NPSH, suction and so on. 2, The characteristics of the medium must be met to meet the requirements of conveying flammable, explosive toxic or valuable Medium pumps require reliable shaft seals or leak-free pumps such as magnetically driven pumps (no shaft seals, indirect magnetic drive with isolated magnet) For pumps that deliver aggressive media, convection components require corrosion-resistant materials such as fluoroplastics Corrosion-resistant pumps Conveying pumps containing solid particulate media requires that the convection components be wear-resistant and that the shaft seal be flush with a cleaning fluid if necessary. 3, the mechanical requirements of high reliability, low noise, small vibration. 4, Correctly calculate pump input cost 5. When transporting corrosive media (such as "concentrated sulfuric acid, concentrated nitric acid"), when transporting flammable and explosive media, the environment should not have any pollution: the magnetic pump can be used, such as CQB series of magnetic pumps, IMD series of magnetic pump, self-priming, optional FZB fluoroplastic self-priming pump 6, IHF centrifugal pump and FSB centrifugal pump with high speed, small size, light weight, high efficiency, large flow, structure Simple, infusion without pulsation, stable performance, easy operation and maintenance and other characteristics, such as the use of conditions without special requirements, the choice of centrifugal pump is better. 7, conveying pump containing solid particles of chemical media require convection parts wear Materials: UHB mortar pump for the best selection of objects, UHB corrosion-resistant mortar pump material for the new high-strength engineering plastics UHBWPE, which is a modified ultra-high molecular weight (more than 5000000) polyethylene.In the plastic, It has excellent wear resistance, experimental contrast, its wear resistance is much higher than stainless steel, and impact resistance, creep resistance and excellent corrosion resistance (with F4) Unique properties like non-adhesive 8, when the medium level is below the mounting position of the pump: FZB fluorine plastic pump should be used, such as the need to meet the characteristics of the magnetic pump, the choice ZMD fluoroplastic magnetic pump self-priming
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