What Is a Canned Motor Pump?
Originating in the English term “canned (goods)”, as the name indicates, a canned motor pump employs a structure in which the pump and motor are integrated and the liquid being handled is sealed in. One feature of that structure is that it results in a pump that is completely leak-free, making it applicable for transporting liquids that are explosive, flammable or toxic, as well as chemicals like strong acids or strong alkalis. Also characteristic is its excellent durability in high-temperature and high-pressure applications.
Image video of canned motor pump transporting liquid
This video shows how liquid flows inside a canned motor pump.
The difference between a standard pump and a canned motor pump
Leaks from the shaft seal.
Canned Motor Pump
The structure in which the pump and motor are integrated and the liquid being handled is sealed in makes it leak-free.
The excellent features of a canned motor pump
1. Completely leak-free
Since there is no possibility of the pumped liquid leaking out, these pumps are suitable for handling liquid that is harmful to humans, explosive or flammable liquid, expensive liquid, corrosive liquid, etc.
2. No contact with open air
Since no outside air enters the pump, they are suitable for operation in a vacuum, or for handling liquids whose quality changes when exposed to the outside air.
3. Compatible with a wide range of pressures and temperatures
No shaft seal means it is easy to manufacture pumps that can handle systems with high pressure, high-temperature liquids, low-temperature liquids, high melting point liquids, and more.
4. No lubrication needed
Because these pumps do not require lubrication oil, there is no contamination of the transported fluid, and the hassles of adding oil is unnecessary.
5. Compact, lightweight, and space-saving
Since the motor shaft also serves as the pump shaft, the design is compact, lightweight, requires minimal installation space, and is easy to overhaul.
6. Quiet operation
Operation noise is minimized because there is no fan to cool the motor.
Canned motor pumps are friendly to both people and the global environment
Because canned motor pumps have a "completely leak-free" structure, there is no damage or danger from leakage. They thus offer the advantage of eliminating any concern over contamination and environmental pollution and, in this way, serve as excellent support to resolving environmental issues as the most people-friendly and environmental-friendly pumps around.