To make sure that the submersible pump is effectively functioning, it needs to have the right volume of water. By doing this, the pump can be able to maintain the right temperature and also prevent the system from overheating. Can I use a submersible pump out of the water? How long can a submersible pump run without water? What is dry running? Read the rest of the article below for the answers to these questions.<\/p>\n\n\n
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Can I Use Submersible Pump Out of Water?<\/h2>\n
Do not submersible pumps out of water because they are meant to be fully submerged in water. If you operate the pump out of the water, the motor will spin faster than usual and the speed can wear out the components of the pump.<\/strong> While it is true that the system might be able to handle the much higher speed for a few seconds, it will get damaged because it is not meant to operate at that speed for a long time.<\/p>\n You will not cause any damage to the pump if it runs without water for less than 45 to 60 seconds will not cause any damage.<\/strong> You can run the pump dry for a few seconds if you are using it for tank transfer and you would like to empty the tank. If you are planning to run dry the pump, you need to make sure that you keep it running for a minimum amount of time and in less than 60 seconds or it will be damaged if it runs longer than that. Take note that pumps that are damaged from running dry will not be covered by a warranty.<\/p>\n This will have to depend on the type of submersible pump that you have. There are domestic submersible pumps that are designed to have an o-ring seal, a single mechanical seal,<\/a> or a lip seal. These types of pumps cannot run dry. On the other hand, many industrial submersible pumps are equipped with double seals with a lubricant that allows them to safely run dry for a short time.<\/strong><\/p>\n When a pump operates without sufficient liquid, it is referred to as dry running. Dry running can result in a surge in flow, pressure, or overheating that can lead to pump failure.<\/strong> Dry Running affects most pump designs which can happen when a pump operates without the right amount of fluid. It can cause cavitations and critical damage to the internal components of the pump. The lobes, impellers, bearings, gears, seals, and casings are usually the ones that are easily damaged by dry running.<\/p>\n If a submersible pump runs dry, it can get damaged. Possible problems that might occur include melting of the shaft which causes the impeller to seize in the shaft, damage to the rear housing of the pump, and damage to the seals. Repairing a pump that is damaged by dry running can be costly as some components might need replacement.<\/strong><\/p>\n One of the problems that might occur when you run dry a pump is that the impeller will melt along the shaft. Because of this, the impeller will seize onto the shaft preventing it to rotate and causing it to stop. To solve this problem, you need to take the pump apart and use a drill bit<\/a> to clean the bore of the impeller.<\/p>\n Damage to the rear housing of the pump can also be the result of dry running. When this happens, the liquid will escape or the boss of the rear housing that secures the pump shaft can deform and the shaft will move rather than be stationary. As a result, the impeller can get damaged and the shaft can break from the impeller.<\/p>\n Dry running can also damage the seals and can lead to burning up and failure. There are many factors that affect the amount of time that it will take for a pump to get damaged from dry running. These factors include the size of the pump, the bore size, and the type of fluid that is used in the pump. In general, it can late as little as 30 seconds of dry running to damage the pump. You can also check out this article that discusses why submersible pumps fail<\/a>. We have shared different possible reasons for submersible water pump failure and damage.<\/p>\n The common cause of dry running is human error. This is because dry running is connected to how the pump is operated, controlled, and monitored. Usually, companies depend on the users to monitor the pumps.<\/strong> On the other hand, there are instances wherein the pump is left running for a long time after the intended operation has been completed. For instance, the pump is unattended while the water on the tank is evacuated and the pump continues to run even if the tank is empty. This can damage the components of the pump.<\/p>\n One of the steps that you can take to avoid dry running is to install a dry running protection device. This device will stop the pump immediately once it detected a low water level.<\/strong> Moreover, the device can constantly check the active power of the motor. The device is equipped with an adjustable set point and timer. This enables you to set the minimum power and the triggering time of the device. The pump will stop if the power goes under the established minimum power and the device must be manually switched on again.<\/p>\n Cycle Stop Valves shared the video below on YouTube. It discusses how to install and adjust a cycle sensor to protect your pump from dry run as well as rapid cycle conditions. You can watch the video below for more tips and information.<\/p>\n\n\nHow Long Can a Submersible Pump Run without Water?<\/h2>\n
Can a Submersible Well Pump Run Dry?<\/h2>\n
What is Dry Running?<\/h2>\n
What Happens if a Submersible Pump Runs Dry?<\/h2>\n
The Impeller Melts along the Shaft<\/h3>\n
It can Damage the Rear Housing of the Pump<\/h3>\n
It Can Damage Seals<\/h3>\n
What Causes Dry Running?<\/h2>\n
How to Prevent Dry Running?<\/h2>\n
\u2705 Video – Dry Run Protector Cycle Sensor Installation<\/h3>\n