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Magnetic Drive Pumps

Liquid Movers supplies a wide range of sealless magnetic drive pumps, engineered for efficiency and durability. Pumps in this range come with strong ETFE linings, which make them leak-free.

Our magnetic drive pumps are designed to handle hazardous, highly corrosive and high-purity fluids in the chemical processing, pharmaceutical, food and beverage, and petrochemical industries.

Liquid Movers’ range of magnetic drive pumps is supplied and serviced by leading brands Flowserve, Blackmer®, and Debem. We distribute mag-drive pumps across sub-Saharan Africa.

This magnetic pump is known as a pump magnet.

Flowserve Innomag TB Mag

Engineered for operation in highly corrosive and toxic applications, this pump features a dynamic thrust balancing system that eliminates the need for thrust bearings. This pump has a long service life and is built for optimal performance.

  • Flows: up to 360 m3/h
  • Pressure: up to 25 bar
  • Temperature: -29 to 121 oC                    
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Get the best magnetic pump price from Liquid Movers.

Flowserve Innomag U Mag

This versatile sealless gear pump offers excellent leak protection. It provides a reliable, easy-to-maintain solution and is adaptable to various applications.

  • Flows: up to 102 m3/h
  • Pressure: up to 20 bar
  • Temperature: -29 to 121 oC
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Magnetic gear pump

Blackmer Magnetic Line

Our Magnes and SMVP pump range combines proven sliding vane technology with sealless magnetic couplings. Pumps in this range are leak-free, self-priming, and feature adjustable relief valves and magnet degradation prevention. These pumps do not have a cumulative dry limit, allowing them to operate continuously without pump failure.

  • Flows: 4 to 1 968 L/min
  • Pressure: 10.3 to 15.5 bar
  • Temperature: -40 to 115 oC
  • Solids: up to 3 mm                  
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Magnetic Drive Chemical pump

Blackmer Series Gear Pumps

These sealless magnetic drive pumps are engineered for the safe and optimal transfer of toxic and hard-to-seal fluids. They are durable and environmentally friendly. Their sealless design makes them leak-free and reduces mechanical wear.      

  • Flows: up to 113.6 m3/h
  • Pressure: up to 13.8 bar
  • Temperature: up to 343 oC
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Flowserve Durco Mark 3

Flowserve Durco Mark 3 ISO Mag

This sealless chemical processing pump offers a total lower cost of ownership and enhanced reliability. It is designed for optimal performance in highly corrosive applications. Benefits include optimised hydraulics, and a hermetically sealed design with true back pullout to deliver safe, leak-free performance and low energy costs.

  • Flows: up to 475 m3/h
  • Pressure: 25 to 27 bar
  • Temperature: -80 to 400 oC
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SIHI CEH Pumps

Flowserve SIHI CEH-Mag Pumps

This range of self-priming magnetic drive side channel pumps combines centrifugal and positive displacement technologies. This allows them to separate and handle gas and liquid components through distinctly different pathways. The pump can accommodate up to 50% vapour in the suction stream, making it ideal for handling fluids at their boiling point.

  • Flows: up to 35 m3/h
  • Pressure: up to 40 bar
  • Temperature: up to 180 oC
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More info on our magnetic drive pump range

Magnetic drive pumps transfer torque from the motor to the impeller via a magnetic drive coupling. An inner magnet attached to the impeller rotates as the motor drives an outer magnet. A sealed containment shell separates these magnets, avoiding fluid leakage and the need for a mechanical seal. As the impeller rotates, centrifugal force moves the fluid through the pump, generating the required flow and pressure.

By removing one of the most common failure points in conventional pumps, the sealless design provides completely leak-free operation, making magnetic drive pumps ideal for handling valuable, corrosive, or hazardous fluids.

This design offers several advantages:

  • Leakage Prevention: Unlike traditional pumps, magnetic drive pumps do not rely on seals & the pump shafts, ensuring leak-free performance.
  • Reduced Maintenance: As magnetic drive pumps do not use mechanical seals, they require less maintenance.
  • Improved Efficiency: Reduced friction and wear on the pump’s components leads to improved efficiency.

Features and benefits of magnetic drive pumps

Magnetic drive pump features

  • Sealed pump design
  • Magnetic drive coupling
  • Corrosion resistance
  • Closed containment shell
  • Compact and effective construction
  • Silent & vibration-free operation
  • Configurable materials and options

Magnetic pump benefits

  • Completely leak-free operation
  • Reduced maintenance requirements
  • Improved operator and plant safety
  • Environmentally safe fluid handling
  • Excellent chemical compatibility
  • Extended service life
  • Reliable and energy-efficient performance
  • Containment of hazardous fluids

Frequently Asked Questions

A magnetic drive pump is a positive displacement or centrifugal pump that uses a magnet coupling to transmit torque from the motor to the impeller.

An outer magnet connected to the motor drives an inner magnet attached to the impeller, with a sealed containment shell separating the two. This eliminates the need for shaft seals, resulting in a direct mechanical connection.

Magnetic drive pumps are recommended for industries that pump corrosive, sensitive or hazardous fluids.

There are several advantages to sealless magnetic drive pumps. These include leak-free operation, a reduced risk of seal-related failure, and minimal maintenance requirements.

Magnetic drive pumps are suitable for applications across various industries, including:

  • Chemical processing
  • Pharmaceuticals
  • Food and beverages
  • Water treatment
  • Industrial coating
  • Power generation 

While both magnetic drive pumps and traditional centrifugal pumps rely on centrifugal force to move fluids, magnetic drive pumps replace the mechanical seal and shaft penetration with a magnetic coupling that prevents leaks. This makes magnetic drive pumps a safer and more reliable solution for the transfer of hazardous, corrosive or sensitive fluids.

When selecting a magnetic drive pump, the first factor to consider is chemical compatibility, ensuring the wetted materials are suitable for the fluid being handled.

Because magnetic drive pumps rely on the pumped liquid for cooling and lubrication, fluid cleanliness is also important, as abrasive solids can cause internal wear.

Additional factors to evaluate include the risk of dry running, fluid temperature and viscosity, and the required flow rate and head to ensure the pump operates reliably within its performance limits.

Magnetic drive pumps are made from corrosion-resistant materials selected to suit the fluid being handled. Common construction options include stainless steel and Hastelloy, as well as chemically resistant thermoplastics like polypropylene (PP) and PVDF.

Internal components may also incorporate PTFE, ETFE, and ceramic materials, to provide durability, chemical resistance, and long service life.

Watch our video to understand the inner workings of a magnetic drive pump.

Get the ideal pump for your specific application requirements.

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