As a crucial liquid conveying device, magnetic pumps have a strict rule: dry running is strictly prohibited. This article will delve into the reasons behind the prohibition of running the magnetic pump without liquid and the potential risks it may pose.

1. Lubrication and Cooling:

The internal bearings and seals of magnetic pumps typically rely on the lubrication and cooling provided by the conveyed liquid to maintain normal operation. In the absence of liquid, bearings may overheat due to friction, leading to equipment damage.

2. Seal Performance:

Magnetic pumps often employ magnetic drive without relying on mechanical seals, making seal performance highly dependent on the presence of the pumped liquid. Running the pump dry may reduce lubrication, increasing the risk of leaks.

3. Pump Stability:

The presence of liquid is crucial for maintaining the stability of the pump. During operation, the mass of the liquid and its steady flow help reduce vibration and noise, enhancing the equipment's lifespan. Dry running may increase vibration, potentially damaging the pump structure.

4. Avoiding Idle Damage:

Running the pump without liquid increases the load on the motor and magnetic coupling components, leading to excessive wear and tear on mechanical and electrical parts, ultimately affecting the pump's performance.

In conclusion, the strict prohibition of dry running in magnetic pumps aims to ensure the normal operation and extend the lifespan of the equipment. Maintaining an adequate supply of liquid and operating the pump reasonably are crucial measures for preserving equipment performance and ensuring safe operation. By following correct procedures and conducting regular maintenance, the magnetic pump can achieve optimal efficiency in liquid conveying, minimizing unnecessary losses and risks.