Choosing which type of pump to use can be a daunting process given the variety of pumping technologies in today's market. Careful examination of the all factors involved can help you make the right choice.
In this article, we will focus on the differences between traditional "sealed" pumps and so called "sealless" pumps. The definition of a sealless pump (The Hydraulic Institute, Parsippany, NJ) is one in which "the impeller shaft is completely contained in a sealed, pressurized vessel (called the containment shell) that contains the process fluid".
To choose between a sealed or sealless pump design, one must understand the economics involved as well as the technologies used. Magnetic Drive Pumps Vs Mechanical Seal Pumps.
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