What kind of pump is suitable for transporting triethanolamine? Those who have used it, please share your experience
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Properties of triethanolamine: colorless viscous liquid. It has a slight ammonia smell. It absorbs moisture very easily. It turns brown when exposed to air or light. It can absorb carbon dioxide from the air. It is miscible with water, methanol, and propane. Its solubility at 25°C is: 4.2% in benzene, 1.6% in ether, 0.4% in carbon tetrachloride, and less than 0.1% in n-heptane. It is highly basic; the pH of a 0.1 mol/L aqueous solution is 10.5. Relative density (d204) 1.1242. Melting point 21.57°C. Boiling point 335.4°C. Refractive index (n20D) 1.4852. Flash point 185°C. Viscosity (25°C): 590.5 mPa·s. It is irritating. The design institute has specified the use of magnetic pumps, but the fluid in question is too viscous. It’s fine in Xinjiang during summer, but in winter its viscosity is similar to that of honey. The storage tanks are equipped with steam heating, and the pipelines as well. What kind of pump would be a good choice?
Reply 1# cjhti: Given such high viscosity, using centrifugal pumps or magnetic pumps results in very low efficiency. A magnetic gear pump or a magnetic slitting pump can be used.
In the case of TEA, it is indeed difficult to transport it when the temperature is too low, and it tends to solidify and cause blockages; therefore, it is best to raise the temperature of the material as much as possible and improve the heating and insulation measures. For pumps, it is best to use gear pumps.
It has a strong alkaline nature and is very sticky; in winter it’s similar to honey. There should be no problem adjusting the material combination using a twin-screw pump, and its self-priming ability is also good
A industrial hose pump is the best choice for this purpose. If you are interested, visit our website at www.joinwaypumps.com for more details, or contact me via QQ at 496521249 and by phone at 18623139325
Your material has high viscosity, and it can be transported using a triple-screw pump. Originally, three-screw pumps, due to being made of cast iron, have certain limitations when it comes to transporting chemical substances. However, we have confirmed with the Austrian manufacturer that your specific medium can be transported safely using such pumps. Furthermore, due to the toxicity of the medium itself, a magnetically coupled sealing method can be considered to prevent leaks caused by wear in conventional sealing methods. For transporting high-viscosity media, the Austrian KRAL triple-screw pump is an excellent choice; it is commonly used for transporting various types of heavy oils and asphalt. If you are interested, I can provide Chinese samples of the product.