The uses of shielded pumps

2009-03-10View Original

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Shielded pumps work well in gas separation units or liquid hydrocarbon plants, but they are prone to causing vacuum conditions when used to extract liquid hydrocarbons from storage tanks, and they often damage the shaft sleeves; this is exactly what happened with the feed pump in our plant’s MTBE unit. According to the installation instructions, the vapor line should rise in a stepped manner to facilitate vapor evaporation; typically, the pump is located at a lower elevation than the tank. The C4 components tend to liquefy easily, thus also forming a liquid seal. By applying steam heating to the vapor line, it can be used temporarily, but it is extremely uneconomical. I would appreciate your advice.

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The uses of shielded pumps

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