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Saturday, June 3, 2023

What is a Canned Motor Pump and How Does it Work?

Several industrial operations depend on the handling of fluids. The effective and dependable movement of fluids is essential to the success of various operations, which range from chemical processing to the production of electricity. The canned motor pump is one kind of pump that has grown in popularity recently. We’ll discuss canned motor pumps in this blog, including what they are, how they operate, and what makes them better than standard centrifugal pumps.

Canned Motor Pump: What Is It?

A type of centrifugal pump known as a canned motor pump has an impeller and motor that are both housed in a hermetically sealed metal can. There is no requirement for a shaft seal because the motor and impeller are connected by a single shaft. A dielectric fluid, like water or oil, is used to fill the container, lubricating and cooling the motor and impeller.

What is the Operation of a Canned Motor Pump?

Centrifugal force is used in the operation of a canned motor pump. The fluid moves radially outward when the motor is turned on because the impeller starts to revolve, producing a centrifugal force. The liquid is driven out of the discharge port and into the piping system as it passes through the pump.

The canned motor pump’s hermetically sealed construction offers a number of advantages. The necessity for a shaft seal, a frequent cause of leakage and maintenance concerns in conventional centrifugal pumps, is first and foremost removed. Second, using a dielectric fluid in the container keeps the motor and impeller cool and lubricated, extending the pump’s lifespan.

Canned motor pumps have advantages

The advantages of canned motor pumps over conventional centrifugal pumps are numerous. Their hermetically sealed design is one of the biggest benefits. By doing so, a shaft seal—a typical cause of leaks and maintenance problems in conventional pumps—is no longer necessary. Canned motor pumps are perfect for handling dangerous or corrosive fluids since they are completely sealed and there is no chance of leaking.

Compact size is another benefit of canned motor pumps. The pump’s overall size is decreased since the motor and impeller are housed in a single unit. They are therefore perfect for applications with limited area, like in chemical processing factories or offshore oil rigs.

In comparison to conventional pumps, canned motor pumps also offer improved energy efficiency. The lack of a shaft seal lowers friction and energy loss, lowering operational expenses and energy consumption.

Suggestions for upkeep and troubleshooting

Canned motor pumps require routine maintenance, just like any other mechanical component, to guarantee optimum performance and longevity. Here are some pointers for maintaining and troubleshooting can motor pumps:

  • Check the pump frequently for leaks, corrosion, and other signs of wear and tear.
  • Keep an eye on the pump’s temperature to make sure it stays within reasonable bounds.
  • Examine the motor windings for wear or damage.
  • Make sure the right kind and quantity of dielectric fluid are put into the can.
  • While maintaining or repairing the pump, only use genuine replacement parts.
  • Conventional Centrifugal Pumps and Canned Motor Pumps Comparison

Canned motor pumps are superior to conventional centrifugal pumps in a number of ways, although they might not be appropriate for all applications. While choosing a pump, it is important to take into account variables including flow rate, head, and the kind of fluid being pumped.

Canned motor pumps manufacturers are generally the best choice for applications requiring the handling of corrosive or hazardous fluids or having a restricted amount of space. Applications requiring high flow rates and head can be better suited for conventional centrifugal pumps.

Canned motor pumps, in comparison to conventional centrifugal pumps, have a number of advantages, including their hermetically sealed construction, small size, and energy efficiency. To ensure best performance and longevity, however, like with any mechanical item, appropriate maintenance and troubleshooting are crucial. It’s critical to routinely check the pump for any indications of corrosion, leakage, or damage. Another way to avoid problems is to keep an eye on the pump’s temperature and examine the motor windings for wear or damage.

Use only original replacement components for maintaining or fixing a canned motor pump. The performance of the pump may be harmed and the warranty may even be voided if non-OEM components are used.

Being a form of centrifugal pump, a canned motor pump has numerous advantages over conventional pumps, including its hermetically sealed construction, small size, and energy efficiency. For the pump to perform at its best and to have a longer lifespan, proper maintenance and troubleshooting are crucial. A canned motor pump may provide dependable fluid handling for many years with the right maintenance.

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