How Does a Mag Drive Centrifugal Pump Work?

How Does a Mag Drive Centrifugal Pump Work

A mag drive centrifugal pump is ideal for harsh chemical applications. Why? Its magnetically-driven design eliminates the need for a seal – so there are no leaks. The magnetic connection between the motor-mounted outer drive magnet and the drive magnet located inside the pump transmits torque from the motor to rotate the impeller, for effective, efficient operation. This sealless connection is key to the pump’s superior design and is part of what makes a mag drive centrifugal pump a go-to solution for a full range of industries. Here’s how it works.

Mag Drive Centrifugal Pump Design

A mag drive centrifugal pump has several innovative design features to optimize its performance.

Magnet Technology/Sealless Connection

Powerful neodymium magnets are used to drive the impeller, for leak-free operation with no environmental emissions, no mechanical seal costs, and no seal support systems.

Corrosion-Resistant Design

Wetted components are all corrosion-resistant non-metallic materials, to withstand the harshest environments.

Flooded Suction versus Self-priming

Flooded suction pumps are gravity-fed from a liquid source that is above the pump’s centerline, eliminating the need for priming, which can speed up operations. This type of pump is widely used in many applications.

Self-priming pumps are ideal for applications where the liquid source is below the pump’s centerline. Their design lets the pumps retain fluid in their housing, allowing them to create a partial vacuum in the suction line. Atmospheric pressure pushes liquid up the suction line to the pump. Once initially primed, the pump will continue to operate without the need to reprime.

Easy-set Outer Drive

Provides measurement-free drive installation that allows perfect magnet alignment every time, for maximum power performance.

Self-priming Features

A self-priming design eliminates the need for troublesome internal check valves or external foot valves to maintain prime.

These design features give a mag drive centrifugal pump significant advantages over other pump styles. As you select a pump for your application, consider these 5 Benefits of Using a Mag Drive Pump.

For more details on mag drive centrifugal pump operation and key troubleshooting tips, check out this resource: Mag Drive Pump Operation and Troubleshooting

Finish Thompson Offers a Mag Drive Centrifugal Pump for a Full Range of Applications

Finish Thompson’s complete line of pumps features rugged designs for heavy-duty applications. Facility operators across multiple industries can select the mag drive centrifugal pump that is ideal for each of their unique settings.

DB Series Mag Drive Centrifugal Pump

These high-efficiency pumps feature rugged construction that includes the strongest neodymium magnets. With sealless design, DB Series pumps deliver reliable operations, with hours of run-dry capability.

The DB Series offers a dependable mag drive centrifugal pump for diverse applications:

  • Anodizing
  • Aquarium/Zoo
  • Chemical Processing
  • Chemical Transfer
  • Circuit Board Printing
  • Electronics
  • Heat Exchanger
  • Pickling Chemicals
  • Plating
  • Pulp & Paper
  • Pump Cleaning Solutions
  • Waste Water/Water Treatment

SP Series Self-Priming Mag Drive Centrifugal Pump

The SP Series offers lightning-fast priming and deep lift abilities. Corrosion resistant, with no seals, these mag drive centrifugal pumps offer long-term reliability, with no leaks.

The SP Series mag drive centrifugal pump is perfectly designed for a wide range of applications, including:

  • Below-grade tank storage
  • Transfer from bulk storage to day or process tanks
  • Over-the-wall applications
  • Tanker trucks or rail car loading or unloading
  • Sumps and reservoirs transfer
  • Tanks with an opening on top
  • Transfer chemicals and rinse waters from sumps
  • When run-dry protection is needed

MSDB Series Multi-Stage Mag Drive Centrifugal Pump

Based on the reliable DB series, these pumps offer over 300 feet (91 meters) of maximum head. With extended run-dry ability, MSBD Series pumps deliver reliable operation, backed by an industry-leading 5-year warranty.

MSDB Series pumps are ideal for a wide range of applications:

  • Chemical processing
  • Electronics
  • Filtration
  • Pharmaceuticals
  • Plating
  • Spray applications
  • Water and wastewater

UC Series ANSI Dimensional Mag Drive Centrifugal Pump

Equipped with powerful neodymium magnets, Finish Thompson’s ULTRAChem® pumps offer reliable leak-free operation. ANSI configuration provides standardized dimensions for each pump size allowing for universal interchangeability. The EFTE lined housing and wetted components give UC Series pumps superior chemical resistance to withstand the harshest environments.

The ULTRAChem UC Series mag drive centrifugal pump is ideal for heavy-duty applications, including:

  • Agricultural chemicals
  • Battery manufacturing
  • Biodiesel
  • Chemical manufacturing, blending, distribution
  • Dehumidification systems
  • Desalination
  • Detergents
  • Electronics
  • Fiberglass manufacturing
  • Fume scrubbers
  • Metal manufacturing
  • Mining
  • Pharmaceuticals
  • Plating solutions

About Finish Thompson

Finish Thompson Inc. designs and manufactures pumps for the safe transfer of a wide variety of corrosive liquids. Products include centrifugal sealless magnetic drive pumps with run-dry capability, mechanically sealed pumps, drum and barrel pumps, vertical mag-drive pumps, multi-stage pumps, and the FTI Air line of air operated double diaphragm (AODD) pumps. For durable solutions for your applications, contact Finish Thompson Inc.