Because mechanical seal pumps are designed to lubricate and cool themselves by leaking small amounts of fluid while they operate, and because this leakage eventually makes its way into the pump’s operating environment, mechanical seal pumps are intrinsically inefficient in processes. Conversely, sealless pumps don’t leak. Sealless mag drive pumps have so historically been used in applications involving hazardous or volatile fluids that are challenging to seal.
Even mechanical seal pumps, which are helpful in situations when hazardous materials need to be pumped, will occasionally leak. On the other side, mag drive pumps are better at pumping corrosive, expensive, or aggressive fluids due to their zero leakage structure. Since only non-metallic components are used in the construction of centrifugal sealless magnetic drive pumps, they exhibit exceptional resistance to a broad spectrum of chemical corrosives.
On the other hand, as the seals on mechanical seal pumps deteriorate over time, they cease to function as intended and let ever-larger amounts of liquid flow through them. Over time, that kind of “spill” can surely raise process costs and compromise worker safety. Sealless magnetic drive pumps, like the ones made by sealless pumps, don’t have any seals, so there are no parts that will break down over time. They are less costly and require less maintenance than traditional mechanical seal designs as a result of this feature. A sealless mag drive pump is a conventional centrifugal pump that lacks the dynamic seal that is usually used to seal the pump shaft.
Why magnetic drive sealless centrifugal pumps are used?
To plant engineering contractors and operators, they offer a pump that is 100% leakage free, associated with the highest operating safety, low maintenance, and strict adherence to environmental requirements. In fact, they are replacing centrifugal pumps with double mechanical seals because mag drive pumps have shown to be a more cost-effective solution for challenging-to-seal applications and the handling of volatile, aggressive, and hazardous substances. When dangerous explosive mixtures generate offensive or malodorous fumes and vapors, plant personnel may be put in danger. If the operating temperature of the media is higher than the atmospheric pressure, then additional cooling is required to prevent liquids from vaporizing between seal faces. A number of initiatives have been made to improve Polyethylene Tanks mechanical seal efficiency in order to meet emission regulations. Additional controls, systems, and equipment are required for each of them. The benefits achieved frequently do not justify the costs of this equipment. It appears that reliability and emissions control are the limits of mechanical seal advancements. The only workable solution is a sealless pump with zero leakage, or one without a seal connecting the media to the environment.
