Suppose you have installed a vertical inline pump for your application and want to keep it maintained. Well, for that, you need to know the reasons that cause pumps to fail. Read this article to learn more about problems in inline pumps and the solutions to them!
According to Grundfos, 60% of the pump failure are caused due to the reasons mentioned below:
Seal Leakages
The first problem which can cause pump failure is mechanical seal leakages. Mostly leakages take place at the interface between the two seals. But sometimes leakages can also come from the second sealing area. Dry running, thermal distortion and misalignment of seal rings are the primary reason for mechanical seal leakages.
Solution
- A proper seal flushing system installed by experts.
Coupling- Failure
Another problem which is faced by pumps is coupling failure. Coupling failure frequently occurs because of improper lubrication, overload, not usual environmental causes, torsional vibration, and misalignment.
Solution
- Change the coupling rubber to avoid excessive friction.
Bearing Problems
By far, the most common problem in pumps is bearing pain, which is caused due to improper lubrication, which results in pumps overheating. There are other causes, too, such as improper bearing selection, overload, fatigue, etc.
Solution
- Consider changing the bearing material.
Clogging
Another problem with pumps is that they get clogged. Pumps usually get clogged when any particles get stuck inside them.
Solution
- For your inline pump to function properly again, you must remove the obstruction and clean the valve and the strainers.
Low Flow Rate
If the flow rate is decreased, it causes the pump to work inefficiently. The reasons which can cause the flow rate to decrease are worn plate, worn or damaged impeller, and collapsed suction hose lining.
Solution
- The pump and pipework must be completely filled with water.
- Ensure that there’s no air in the pipework or the pump.
Low Suction Pressure
Sometimes pumps show low suction pressure. This is caused when the liquid tank level is below the pump.
Solution
- Never operate the pump when the tank’s water level is too low. Instead, go for a tank fill first and then operate the pump.
Dryness Of Pumps
Your inline pump is overheating if you touch it and feel the temperature is higher than usual. This is a sign that your pump has become dried and needs proper lubrication; otherwise, it can cause pump failure.
Solution
- Do not keep the pump operative for longer than recommended period according to the user manual.
Corrosion
Lastly, corrosion is the most common problem faced by pumps. The job of pumps is to pump fluids and corrosion, which is a chemical process caused when metal and liquid come in contact in the presence of air. Corrosion is caused on wet surfaces, which can affect your pump’s efficiency.
Solution
- Paint the surfaces that are getting corroded.
Now you undoubtedly know what problems can cause pump failures. All you need to do is take proper care of your pumps, including their bearing, lubrication, and cleaning. This will allow your inline pump to stay well-maintained and long-lastingly efficient.