Reasons for the vulnerability of magnetic pump bearings
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Our unit has several magnetic pumps of the model IMD######FA (the digits have been omitted to avoid disputes); the motors are connected directly to the pumps, the flow rate is 120 cubic meters per hour, the medium used is hypochlorite, the opening degree of the outlet valve is 30–40%, the pressure is 0.45 MPa, and the inlet pipe has a diameter of 300 mm changing to 100 mm; there is no issue of cavitation or gas entrapment. Please give some advice
It’s impossible to analyze; you want to know why it’s broken, but there is no description of the pump’s malfunction.
Damaged condition, photos – one has to examine it visually, auditively, by asking questions, and through touch after all
Damage to magnetic pumps generally occurs mainly in the graphite bearings and magnetic magnets. Among them, the frequency of damage to graphite bearings is relatively high; this is mainly due to vapor resistance inside the chamber and particles present in the flushing medium, which result in poor lubrication and excessive wear and vibration of the bearings. Another issue is pump evacuation and excessive magnet temperature, which lead to a shortened lifespan. For reference.
Where is the damage in the magnetic pump? It would be better if the poster clearly described the problems occurring with the magnetic pump as well as the damaged parts, so that a proper assessment can be made.
If it’s the sliding bearing that’s damaged, then evacuating the area really does need to be considered. Most magnetic pump failures occur here.
It may be that the pump outlet valve has not been fully opened for an extended period, resulting in pressure buildup in the pump, which can easily lead to damage to the graphite shaft
Magnetic pumps must not run dry, and there must be no particles or crystals present.
The operating temperature, the properties of the medium (presence of particles or not), and information on the connections of the field equipment are also preferably provided. The promises made upstairs claim that the product will work well, but all I can do is laugh – typical of scammers: they make all kinds of promises before sales, but shift blame whenever problems arise after purchase. . . . . . .
Is your question too vague? To determine the exact cause of the damage, it’s necessary to understand the situation; it would be best to provide a diagram showing the operating conditions of the medium. In addition to process-related issues, there are also serious problems with product quality. Not all magnetic pumps are capable of handling particles in the medium