June 30, 2025

Other issues that should be noted when using a magnetic pump

When using a magnetic pump, there are several important considerations to keep in mind. First, under normal operating conditions, magnetic pumps typically do not experience aging or demagnetization over time. However, issues such as overload, blockage, increased media viscosity, or temperatures exceeding the allowable limit of the housing can lead to coupling failure, demagnetization, or other operational problems. Therefore, it is crucial to operate the pump within its specified parameters. Additionally, for magnetic drive pumps that require direct starting, the torque capacity of the magnetic coupling should be at least twice the rated torque of the motor to ensure reliable operation and prevent damage. When handling highly toxic or flammable media, safety and longevity are key. In such cases, it's recommended to install a temperature sensor (RTD) inside the isolation sleeve, use a pressure-tight magnetic coupler housing, or implement a double-isolation sleeve design. A liquid leak detection probe should also be included for early warning of potential leaks. Stainless steel magnetic pumps must not be used to transport media containing ferromagnetic impurities, as these can interfere with the magnetic coupling and cause damage. The seller should provide detailed documentation, including demagnetization characteristics of both internal and external cylinders, to ensure proper selection and maintenance. Buyers should also carefully review the efficiency data provided by the seller. It’s important to determine whether the stated efficiency includes magnetic transmission losses or only reflects hydraulic efficiency. This distinction can significantly impact the overall performance and energy consumption of the pump. By paying attention to these factors, users can maximize the lifespan, efficiency, and safety of their magnetic pumps. Always follow manufacturer guidelines and ensure proper installation and maintenance procedures are in place.

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