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Can a magnetic pump really not operate under no-load conditions? Who said that!

2022-10-08View Original

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Generally speaking, traditional magnetic pumps indeed cannot operate without a load. Why? Since magnetic drive pumps transmit torque through the magnetic force between magnetic poles, cutting through magnetic field lines during operation generates heat, which must be cooled and dissipated by the medium. Therefore, magnetic pump must not be operated with no liquid present, or with the pump outlet valve closed, or when it is unable to discharge liquid; otherwise, heat accumulation can cause the magnetic rotor to demagnetize prematurely. However, the magnetic pump introduced by Reicht can not only operate under no-load conditions, but is also wear-resistant, can handle particles without issue, and can also homogenize the medium. Let’s take a look. The NCH continuous air-operated magnetic pump represents the liquid-free air operation technology for magnetic pumps developed by Reichter, which makes it possible for such pumps to operate without any liquid. This pump utilizes cutting-edge technology in the industry to achieve \"no temperature rise\" and \"zero leakage\" during dry operation of magnetic pumps! Traditional magnetically driven pumps can suffer damage to their sliding bearing assemblies and magnets due to magnetic eddy current heating that occurs when they operate under no-load conditions with no liquid present. This leads to friction between the inner rotor and the isolation sleeve, resulting in pump damage and fluid leakage. If this situation triggers a chain reaction with surrounding facilities and the environment, it could cause greater losses or even lead to safety accidents. The Richter liquid-free air-operated series of magnetic pumps feature corrosion-resistant rolling ceramic bearings, non-metallic imported materials for the isolation sleeves, and Richter’s self-ventilated cooling design. These elements help to reduce the heat generated by the air-operated magnetic pumps, enabling them to achieve a true \"zero temperature rise\" even when operating for extended periods of time. Product features: Unique sealing design: dynamic sealing + N2 sealing + magnetic sealing, offering high levels of safety ; The blades at the back of the impeller ensure that the material does not come into contact with the shaft during operation, thus eliminating wear ; Pump chamber N2 gas seal: During operation/shutdown, the material does not come into contact with the bearings; it creates a buffer gas cushion ; Magnetic drive: no leaks at all ; Only the impeller is a wear part; the grease bearings require maintenance every 2 years, with few spare parts needed for replacement. Application areas: The NCH series of magnetically driven pumps are capable of handling various difficult and complex pumping tasks. They do not suffer from cavitation issues and can exhaust air on their own. These pumps are suitable for use with solids, can operate in dry conditions, are self-regulating, wear-resistant, require little maintenance, and offer high levels of safety.

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