Contact usHERMETIC News

Magnetic drive pumps for hermetically sealed processes

Seal-less pumps for critical media

Magnetic coupling pumps combine conventional pump hydraulics with a permanent-magnet drive system and a three-phase motor. The contactless and slip-free torque transmission is achieved via the attractive and repulsive forces between permanent magnets in the two coupling halves. Between them lies the gap ring, which hermetically seals off the product chamber from the surrounding environment.

The hermetic seal is ensured by a single-acting safety casing. Magnetic coupling pumps are used in particular for toxic, strong-smelling or otherwise hazardous fluids, as the fluid remains safely shielded from the surroundings by the gap pot. 

Cutaway view of a green magnetic drive centrifugal pump showing internal shaft, bearings, impeller, and casing components.

Advantages

Hermetically sealed

The isolation chamber reliably separates the process medium from the surrounding environment and ensures maximum process safety.

low-wear power transmission

The permanent-magnet coupling transmits torque without contact and without slippage. This reduces wear and maintenance requirements and ensures reliable operation. 

Suitable for critical media

Ideal for aggressive, toxic, explosive or highly volatile fluids.

Flexible system integration

Design in accordance with EN 22858, ISO 2858 and ISO 5199, together with the use of standard motors available on the market, enables easy integration into existing systems and system designs.

Magnetic coupling pump

Standard applications for the process industry

Flow rate [Q]

max. 700 m³/h

Lift height [H]

max. 220 m

Material temperature [t]

–40 °C to +350 °C

Operating pressure

PN 16 / PN 25

Cross-sectional technical drawing of a magnetic coupling pump showing internal components and shaft assembly.

Type MCN

Type / Design

Single-stage, naturally aspirated magnetic drive pump for use in chemical, petrochemical and energy sector applications.

Cross-section technical drawing of a magnetic coupling centrifugal pump with electric motor

MCN-Block type

Design / Configuration

Compact modular design for space-saving installations and standardised processes.

Cross-sectional technical drawing of a magnetic coupling pump showing internal components and shaft assembly.

Type MCNK

Type / Design

Single-stage, naturally aspirated magnetic coupling pump in a high-temperature version, coolable. 

Standard application, multi-stage

Flow rate [Q]

max. 45 m³/h

Lift height [H]

max. 270 m

Material temperature [t]

–40 °C to +220 °C

Operating pressure

PN 16 / PN 25

Cross-sectional technical drawing of a horizontal multistage magnetic coupling centrifugal pump with motor.

Type MCAM

Type / Design

Multi-stage, naturally aspirated magnetic coupling pump for use in chemical and petrochemical applications and in the energy sector.

Cross-sectional view of a magnetic coupling pump showing internal components including rotor, stages, and control unit.

MCAM block type

Design / Configuration

Multi-stage modular design for high delivery heads with a particularly compact footprint. 

Find out more about split-case motor pump technology  

Gain an insight into split-case motor pump technology, its key operating principles and the various design variants. In our short videos, you can find out more about the technical features and potential applications of this technology. 

Get in touch with our team

Are you looking for the right magnetic drive pump for your application? Our experts will be happy to help you choose the best solution.