Analysis of the reason why the pneumatic diaphragm pump can not pump liquid

August 11, 2023

Pneumatic diaphragm pumps are used more and more in the chemical industry due to their performance reasons. However, many customers can not play the liquid when purchasing the pneumatic pumps. Now the use of diaphragm pumps is becoming more and more common, so the amount used Increasingly large, however, many people buy it back to find that many diaphragm pumps out of liquid, if not a knowledgeable person, or will not repair people will do nothing. Here I summarize the reasons for the pneumatic diaphragm pump can not hit the liquid:
　　
1, the proportion of liquid is too large, or that the concentration is too large, pump suction reach, so this case, the pump at work, but can not play the liquid;
　　
2, the pump body ball valve and ball seat seal is not good, hit the liquid flew back immediately, in this case, the pump is a liquid, but the flow is small, the lift is very low;
　　
3, the inlet pipe seal is not good, in this case, the pump is working, but due to suction on the liquid, so the pump can not beat the liquid;
　　
4, air inlet pressure is not enough, the general domestic pneumatic diaphragm pump air pressure range is generally 2-7kg, greater than or less than the value of the pump can not work;
　　
5, wearing parts of the pump body worn, in this case easier to solve, you can replace the wearing parts;
　　
6, the lowest level of error is the pump import and export reversed, the pump is imported next, the export is on. The probability of such a mistake is very small, but I have encountered such a client;
　　
7, the pump itself is a problem, like some small workshops produced diaphragm pump in the factory itself does not try it, it is sold directly to the market, customers buy the past, looking for immortality is not repaired, unless you pump back Design, reorganize the sand look.

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Author:

Ms. Gia Zuo

Correo electrónico:

sales4@zjslurrypump.com

Phone/WhatsApp:

+86 15511357509

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