Advantages and disadvantages of magnetic pump and shielded pump
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Both magnetic drive pumps and shielded pumps are leak-free pumps, and they are used in the chemical industry for handling flammable, explosive, toxic, and harmful substances. However, their driving principles are different: magnetic pump relies on permanent magnets to drive the pump, while shielded pump is driven by the magnetic field generated by alternating current.
Starting characteristic: Magnetic pump, with disengagement of the inner and outer rotors； Shielded pump: There is no risk of loss of rotation even under overload conditions. Efficiency: The overall efficiency of magnetic drive pumps is about 3% higher than that of canned motor pumps. Operating temperature: Generally, the operating temperature of permanent magnets should not exceed 350 degrees, otherwise demagnetization may occur. The operating temperature of a shielded pump can reach 500 degrees. Operating pressure: The operating pressure for magnetic pumps is less than 16 kilograms, while that for canned pumps is less than 350 kilograms. Highly corrosive liquids: Magnetic pumps are suitable for highly corrosive liquids, while shielded pumps are not. Fine iron particles: Magnetic pumps are not suitable; shielded pumps are suitable. This post was last edited by txhg on 2007-11-16 13:18]
Fine particles: Magnetic pumps are not suitable; are shielded pumps suitable? I always think that both types of pumps are driven by magnetism, the gaps between them are small, which leads to particle-related issues. . . . Discuss carefully? Moreover, I think the original poster’s question should be limited to a discussion of the advantages and disadvantages resulting from the different driving methods of the two pumps I disagree with many of the opinions expressed upstairs; I hope we can communicate via private messages: handshake
Magnetic pump – runs idle or operates without liquid. It is recommended to install an anti-idle protection device for the pump, which will shut it down automatically within 2 seconds when idling, thus protecting the pump from damage. Electronic sample available at: http://www.dnpump.com/PicUp/200910162202501.pdf If you want less maintenance, opt for a built-in anti-idle protection device – it saves hassle!
Fine particles: Magnetic pumps are not suitable; are shielded pumps suitable? I always think that both types of pumps are driven by magnetism, the gaps between them are small, which leads to particle-related issues. . . . Discuss carefully? Moreover, I think the original poster’s question should be limited to a discussion of the advantages and disadvantages resulting from the different driving methods of the two pumps I disagree with many of the opinions expressed upstairs; I hope we can communicate via private messages
Are there any materials I can refer to while studying?