No matter what type of water pump it is, as long as it is started, there is always a sound. The sound of the water pump working normally is continuous and has a certain thickness, and you can feel the surging water flow. Abnormal sounds come in various forms, such as jamming, metal friction, vibration, and air idling. Different problems with water pumps can produce different sounds. Let's take a look at the causes of water pump noise together.
1. Idle noise
Pump idling is a continuous and muffled sound, and slight vibrations can be felt near the pump body. Prolonged idling of the pump can cause serious damage to the motor and pump body. Here are some reasons and solutions for idling:
A. Water inlet blockage: In the presence of fabrics, plastic bags, and other debris in the water or pipeline, there is a high probability of blockage at the water outlet. After blockage, the machine needs to be stopped immediately, and the connection at the water inlet can be removed to remove the debris and restart.
B. Pump body leakage or seal leakage: The noise of these two situations will be accompanied by a "buzzing, buzzing" sound of bubbles. The pump body contains a certain amount of water, but due to poor sealing, leakage occurs, resulting in a "gurgling" sound. To address this issue, only by replacing the pump body and seal can we solve it at the root.
2. Friction noise
The noise generated by friction mainly comes from rotating parts such as impellers and blades. The noise generated by friction is accompanied by sharp metal sounds or "clattering" sounds, which can be basically judged by listening to the sound to identify the parts that make the noise.
A. Fan blade collision: The exterior of the water pump fan blade is protected by a fan cover. During transportation or production, if the fan cover is deformed due to impact, the rotation of the fan blade will touch the fan cover and make abnormal noises. At this time, stop the machine in time, remove the hood and smooth out the depression.
B. Friction between impeller and pump body: Excessive or insufficient clearance between impeller and pump body may cause friction between them, leading to abnormal noise.
C. Excessive clearance: During the use of the water pump, friction occurs between the impeller and the pump body, which may cause excessive clearance and abnormal noise over time.
D. Insufficient clearance: Failure to adjust the position of the impeller properly during the installation process or in the original design of the water pump can result in sharp abnormal noise caused by insufficient clearance.
In addition to the friction noise mentioned above, the wear of the pump shaft and bearings can also cause the water pump to produce abnormal noise.
3. Wear and vibration noise
The main components that cause abnormal noise during water pump vibration due to wear and tear include bearings, skeleton oil seals, rotors, etc.
Bearings and skeleton oil seals are installed at the upper and lower ends of the water pump, and after wear, they will make sharp "hissing, hissing" sounds. Identify the upper and lower positions of the abnormal noise and replace the parts.
The above are the reasons and solutions for the abnormal noise of the water pump. Follow Lutsee Pump Industry to learn more about water pumps.
