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May I ask if PVC pipes used for transporting waste sulfuric acid (with a concentration of about 70%) can be equipped with electric heating?

2011-08-27View Original

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May I ask if PVC pipes used for transporting waste sulfuric acid (with a concentration of about 70%) can be equipped with electric heating?
Reply #22011-08-27
Reply to 1# lovelimen: Don’t even think about it! It’s deadly dangerous! Never try something that can kill people. The common approach is to increase the material temperature a bit and add external insulation, and that’s it
Reply #32011-08-27
The freezing point of 70% pure sulfuric acid is around -40 degrees; if the freezing points of the impurities present are not high, no heating is required. Even when heat tracing is required, the heat-tracing effect of plastic pipes is not good.
Reply #42011-09-07
Reply to 1# lovelimen: What temperature does this waste sulfuric acid need to be maintained at? It’s important to take into account the heat resistance of PVC pipes, as these pipes generally cannot withstand high temperatures. If the temperature of the sulfuric acid is not kept high, it is recommended to use thicker insulation material
Reply #52011-09-07
PVC with electric heat tracing? What is the temperature requirement? PVC pipes have two problems: firstly, they have poor heat resistance, and secondly, their heat transfer efficiency is not satisfactory.

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