Water pump head reduced, may be these several reasons
Nov 22, 2022
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As a fire pump manufacturer, every day there will be a lot of problems consulting, many of the customers for the pump head becomes low this problem raised questions, the following zjbetter Xiaobian to share with you, the pump head reduced for several reasons, so that customers in the use of fire pumps can pay attention to avoid this problem, but also to solve the problem themselves.
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1, impeller flow channel blockage
First of all, the most intuitive problem, check whether the impeller is stuck in the main blockage, if so, timely cleaning can solve the problem. If necessary, filtering devices can be added to the front of the pump inlet to avoid the impeller runners being blocked again.
2、Inside leakage
When the gap between the connection points of various parts in the pump is too large, it will cause the pump to leak, resulting in a drop in discharge pressure. When this problem occurs, dismantling and repair should be carried out.
3、Cavitation
If the inlet piping system has no blockage or the inlet valve opening is too small, resulting in the pump inlet pressure is lower than the saturated steam pressure of the pumping medium, it will form cavitation. At this time, the blockage should be cleared or the inlet valve should be opened wide, or the liquid level of the inlet pool should be increased.
4、Decrease in rotational speed
Check whether the speed of the pump is reduced because of certain factors, the speed is proportional to the head, if the speed of the problem, check the reasons, reasonable solutions.
5、Motor reversal
Observe the steering of the pump, if the steering is reversed, exchange the two wires on the terminals of the motor.
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Of course, there are more other reasons for the pump head to reduce, the above is only part of one of the common problems. Over the years, the company has been equipped with a strong technical team, zjbetter professional team can provide you with efficient and convenient service, the company's professional sales engineers can provide you with a quick quote, factory direct sales, favorable prices and quality. In recent years, the company has also passed the UL and CE certification, giving customers a strong guarantee to buy and use with confidence.
Translated with www.DeepL.com/Translator (free version)
1, impeller flow channel blockage
First of all, the most intuitive problem, check whether the impeller is stuck in the main blockage, if so, timely cleaning can solve the problem. If necessary, filtering devices can be added to the front of the pump inlet to avoid the impeller runners being blocked again.
2、Inside leakage
When the gap between the connection points of various parts in the pump is too large, it will cause the pump to leak, resulting in a drop in discharge pressure. When this problem occurs, dismantling and repair should be carried out.
3、Cavitation
If the inlet piping system has no blockage or the inlet valve opening is too small, resulting in the pump inlet pressure is lower than the saturated steam pressure of the pumping medium, it will form cavitation. At this time, the blockage should be cleared or the inlet valve should be opened wide, or the liquid level of the inlet pool should be increased.
4、Decrease in rotational speed
Check whether the speed of the pump is reduced because of certain factors, the speed is proportional to the head, if the speed of the problem, check the reasons, reasonable solutions.
5、Motor reversal
Observe the steering of the pump, if the steering is reversed, exchange the two wires on the terminals of the motor.
Of course, there are more other reasons for the pump head to reduce, the above is only part of one of the common problems. Over the years, the company has been equipped with a strong technical team, zjbetter professional team can provide you with efficient and convenient service, the company's professional sales engineers can provide you with a quick quote, factory direct sales, favorable prices and quality. In recent years, the company has also passed the UL and CE certification, giving customers a strong guarantee to buy and use with confidence.
Translated with www.DeepL.com/Translator (free version)
