Discussion on insulation issues in the selection of liquid stearic acid transfer pumps
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Dear experts in the industry, the liquid stearic acid pump used in my company is currently of the centrifugal type. Due to the structural characteristics of this centrifugal pump, leaks often occur between the shaft sleeve and the pump shaft. The melting point of stearic acid is 58 degrees Celsius; at present, hot water is used for insulation, and the pump operates intermittently for 30 minutes per day. Residues remain inside the pipes and the pump chamber. I plan to replace it with a leak-free magnetic pump. Some manufacturers have proposed solutions that involve only insulating the pump body, but I’m concerned that the material inside the pump cover and the isolation sleeve may not be heated properly, posing a risk of solidification. I wonder if this concern is valid? Dear experts, please leave comments to discuss whether it is necessary to insulate the pump cover. Thank you!
It is a centrifugal pump with a single-end face corrugated seal; there is no leakage at the seal itself, but instead, leakage occurs from the shaft sleeve. Please, those who are passing by, leave a message with some guidance; thank you.
Check for any leakage at the gasket where the sleeve and shaft are sealed; this is a static seal