Advantages and disadvantages of magnetic pump with the two structures
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What are the respective advantages of these two types of magnetic pump structures? It seems that a coupling-free design would be better; I don’t know why it has been changed to a design with couplings these days
Looking at the model specifications, direct connection is generally the standard. The direct-connected type features a small footprint, simple installation, and easy maintenance as there is no need to remove the pipes during repairs. Starting with a coupling provides cushioning, resulting in better stability; for larger models, it is still recommended to use ones with couplings.
Magnetic pump designs shouldn’t involve couplings or buffers; they consist of an outer magnetic sleeve and an inner magnetic sleeve, with torque being transmitted through magnetism. These pumps can be either integrated or separate types. The integrated type is suitable for small and medium-sized pumps, and it has a lower cost. The split type is suitable for large-scale applications, facilitating maintenance and repair.
Our factory produces many models with couplings; they are reliable and more stable than those with direct connections. For materials with high density, couplings provide good performance; they offer buffering during startup and result in low eddy current losses.
What type of coupling is used for the magnetic pump in your factory? Can I take a look at the photos?
I found the image; it has a dual-axis structure.
The structure with direct connection of the motor shaft is a long cantilever structure; if the front and rear bearings of the motor are not designed with increased dimensions, the additional load on these bearings may increase abnormally. As a result, bearing damage is more likely to occur when lubrication is inadequate. Whether others choose to save this amount of money or not, when drafting technical specifications, I definitely rule out such direct-connected structures~~~
For magnetic pumps of the same size, there’s no need for a split design to facilitate maintenance, right? It’s a little easier to disassemble the motor when it’s separate; disassembling the pump head is the same