Stopping Pump Dry Runs: A How-To Guide.
Dry runs are a common issue that pumps face, which not only causes a significant decline in their performance but can also lead to their complete failure. Dry runs occur when the pump runs without a sufficient amount of liquid, which leads to friction and heat, causing the impeller to wear out, leading to increased vibration, unusual noises, and eventual pump failure. In this guide, we will discuss the ways to stop pump dry runs.
Check the liquid level regularly.
One of the most effective ways to prevent pump dry runs is by checking the liquid level regularly. The liquid level should be checked before starting the pump and, if necessary, the pump should be turned off until the liquid level is sufficient. Additionally, a low-level alarm or an automatic shut-off switch can also be installed to alert the operator and shut off the pump automatically.
Install a check valve.
A check valve is a simple, yet effective solution for preventing pump dry runs. A check valve closes the pump's suction line when the pump is not in use, which prevents the liquid from leaving the pump and help maintain a sufficient liquid level.
Install a suction strainer.
Sometimes, the liquid entering the pump can contain debris or solids that can cause clogging or damage to the pump's impeller. A suction strainer can be installed to filter out any debris or solids before entering the pump, which can help maintain a stable liquid level in the pump's basin.
Maintain the pump regularly.
Regular maintenance of the pump is crucial for preventing dry runs and other mechanical issues. The pump should be maintained per the manufacturer's recommendation, which commonly includes checking impeller wear, cleaning the suction strainer, and checking motor bearings.
Conclusion.
In conclusion, preventing pump dry runs is a crucial aspect of maintaining the pump's longevity. By periodically checking the liquid level, installing a check valve and suction strainer, and performing regular maintenance, you can ensure your pump operates efficiently and avoid costly repairs or replacements. Remember to follow each of these steps to ensure that your pumps remain free of dry runs, and perform at the highest level possible.
For more information, please visit how to prevent pump from running dry, pharmaceutical piston pumps, engineering applications AODD pumps.