Selection of methanol pumps
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What is the best pump for pumping methanol? But safety issues must be considered! Thank you!
There are many pumps used for methanol; low-temperature centrifugal pumps and other types of centrifugal pumps are required during low-temperature washing or distillation. In finished product warehouses or other locations, magnetic pumps and shielded pumps are the ones that are commonly used, and that’s sufficient
Currently, magnetic pumps are generally used for transporting methanol; a few years ago, shielded pumps were used a bit more often, but now magnetic pumps are the preferred choice in most cases.
Magnetic pumps or shielded pumps can be used, but shielded pumps are more expensive; diaphragm pumps can also be used
When extracting methanol, what should the methanol concentration be? If it is high-purity methanol, it is best to use shielded pumps and magnetic pumps, as leaks can easily lead to fires. If it is crude methanol, a regular centrifugal pump will suffice
We used two types: a magnetic pump in the first phase and a canned motor pump in the second phase. After comparing them over these days, the canned motor pump is better as it can control the outlet flow rate, whereas the magnetic pump cannot do that; moreover, the magnetic pump tends to burn out easily.
The company has been using shielded pumps, and the results are very good. There are basically no problems.
It is best to use a shielded pump, or a magnetic drive pump. Centrifugal pumps can also be used, but they must be equipped with explosion-proof motors
We use shielded pumps, and they’ve had almost no problems for two years. It is very stable with no leakage issues