Canned Motor Pumps 

Canned Motor Pumps

Reliable, Sealless Pumping for Critical Process Applications

When handling hazardous, volatile, corrosive, toxic, expensive, or environmentally sensitive fluids, preventing leakage is not simply a maintenance concern—it can be an essential part of safe and reliable operation.

Canned motor pumps provide a sealless pumping solution in which the pump and motor are integrated into a single hermetically contained unit. By eliminating the conventional mechanical shaft seal, this design significantly reduces the potential for process-fluid leakage and helps provide reliable fluid containment.

Tradeline supplies canned motor pump solutions for demanding industrial applications where fluid containment, operational reliability, and long service life are critical.

Why Canned Motor Pumps?

Conventional centrifugal pumps commonly rely on mechanical seals to prevent process fluid from escaping around the rotating shaft. In difficult applications, seal wear, leakage, emissions, and maintenance requirements can become significant operational concerns.

Canned motor technology eliminates the conventional shaft seal between the pump and motor.

This provides several important advantages:

  • Sealless operation for improved fluid containment
  • Reduced risk of external leakage
  • Suitable for hazardous and difficult-to-handle fluids
  • Reduced seal-related maintenance
  • Reliable operation in demanding process environments
  • Configurations available for high-temperature, high-pressure, volatile, and other specialized applications
  • Engineered designs available to match specific process conditions

Designed Around the Process

There is no single pump configuration suitable for every application.

Canned motor pumps can be engineered according to the characteristics of the liquid and the operating conditions, including:

  • Flow rate
  • Differential pressure and total head
  • Operating temperature
  • Fluid properties
  • Vapor pressure
  • Specific gravity and viscosity
  • Required materials of construction
  • System pressure
  • NPSH conditions
  • Electrical requirements
  • Special containment or circulation requirements

For this reason, proper pump selection begins with understanding the process, not simply selecting a pump by size.

Applications

Canned motor pumps are particularly valuable in industries where leakage prevention and dependable fluid handling are critical.

Typical applications include:

Chemical & Petrochemical

Handling process chemicals, hydrocarbons, solvents, and other fluids where leakage can create safety, environmental, or operational risks.

Oil & Gas

Sealless pumping solutions for demanding hydrocarbon and process-fluid applications, including applications requiring specialized containment and high-pressure designs.

Power Generation

Applications involving cooling, circulation, process fluids, and other critical systems in power-generation facilities.

Industrial Processing

Reliable circulation and transfer of process fluids, heat-transfer media, and other specialized liquids.

Refrigeration

Pumping and circulation of refrigerants and other low-boiling or volatile fluids where containment and reliable operation are important.

Pharmaceutical & Food Processing

Applications where controlled fluid handling and minimizing contamination or leakage are important considerations.

High-Temperature Applications

Specialized canned motor pump configurations can be designed for hot water, heat-transfer fluids, and other high-temperature process liquids.

Specialized Pump Configurations

Depending on the application, canned motor pumps are available in a wide range of configurations, including:

  • Standard centrifugal designs
  • Multistage pumps for higher head requirements
  • Self-priming configurations
  • High-temperature designs
  • High-pressure designs
  • Pumps for volatile and low-boiling liquids
  • Slurry-handling configurations
  • Jacketed designs for high-melting-point fluids
  • Specialized circulation systems
  • API 685-compliant solutions for applicable process industries

The appropriate configuration depends on the actual operating conditions and fluid characteristics.

Engineering Support & OEM Supply

Tradeline focuses on supplying engineered industrial equipment and OEM solutions for applications where standard off-the-shelf equipment may not be sufficient.

For canned motor pump requirements, we can work from your existing pump model, OEM reference, specifications, datasheet, or complete process information to help identify the appropriate solution.

Our objective is not simply to supply a pump—it is to help match the equipment to the application, operating conditions, and required performance.

Need a Canned Motor Pump?

Send us the available pump information, including:

Flow × Head × Fluid × Temperature × Pressure

along with the existing model number, OEM reference, datasheet, or equipment specification when available.

Tradeline can assist with identifying a suitable canned motor pump solution for your application.

Scroll to Top