Chemical pumps with magnetic couplings

Chemical pumps with magnetic coupling are used for pumping aggressive substances, acids, alkalis, and solvents. Manufactured from high-quality materials resistant to corrosion and aggressive chemicals, they ensure high performance, reliability, and safety.

The operating principle of the pump is that the magnetic coupling transmits torque from the motor to the pump shaft through a magnetic field, eliminating any contact between the working parts. This reduces friction and wear of components, which extends the service life of the pump.

When selecting a pump, it is important to consider the needs of your production process, the nature of the working fluids, and other important parameters.

MD pumps from the manufacturer Qeehua have proven to be reliable.

To select the correct pump, it is necessary to know:

• the substance that the pump will transfer;
• capacity;
• head (delivery height).

The material from which the pump is made depends on what exactly will be pumped.

For example: nitric acid (HNO3) 20%.

To select a pump, we review the compatibility table of pump materials with this acid. In Table 1 we can see that if the temperature of HNO3 is 40°C, GFRPP and CFRPP (types of polypropylene) are suitable. However, if the temperature is already 60–80°C, PVDF and CFRETFE should be used (a more chemically resistant version of PVDF).

Table 1