CRN MAGdrive for Hazardous Media

Grundfos designed the CRN MAGdrive pumps range as a completely leak-free solution for pumping hazardous, aggressive, volatile or precious media.

The CRN MAGdrive’s pump shaft is rotated from the outside by the forces of magnetism, so the liquid cannot escape its closed circuit. Everything stays put, which is good news for your processes, your working environment, and the environment in general.

Rated power up to 22kW

The advantages of the hermetically sealed magnetic drive are available on CRN pumps with a rated power up to 22kW. No matter how powerful a motor you need, you get a pump which combines high speed and compactness – and the benefits of patented technologies you won’t find anywhere else. Naturally, the MAGdrive offers all the superior reliability and performance you expect from a CR solution.

How the CRN MAGdrive works

A magnetic coupling uses the force of magnetism to transmit power from the drive to the shaft. The magnets are located inside completely separate parts and only the force of magnetism connects the two. In contrast to traditional pumps, the shaft does not penetrate through the two parts. This means that there are no holes or seals through which the liquid can escape. The result is hermetically sealed, safe pumping.

Technical data

• Maximum pressure: 25 bar
• Maximum ambient temperature: 40°C
• Maximum liquid temperature: 120¯C
• Flow range: up to 120m³/h
• Viscosity range: 0.3-300mPas

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