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Wednesday, June 12, 2013

What is air locking in pumps


Air Locking
  
- An air lock is trapped air or dissolved gases inside the pump impeller.
- This air or gas is compressed and becomes high pressure as the pump runs.


Causes of Air Lock:


- Leaks in the suction side
- Switch failure
- Entrained air mixed (dissolved) in the liquid


Dangers of air lock:


- overheating
- pump inability to start
- reduced flow of liquid
- pump unable to move fluid


How to prevent air lock in pumps:


- air relief valves
- repair leaks
- replace worn gaskets and seals
- operate within allowable limits

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