Can nitrogen be introduced for purging after using a pneumatic diaphragm pump?
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Everyone, after using a pneumatic diaphragm pump, can the pump inlet line be connected to a nitrogen line in order to purge the remaining fluid from the pump? Will this cause any damage to the pump?
At least the condensate inside the pump should be drained first, right?
After the medium has been drained, it can be purged with nitrogen
Based on my experience, the inlet pressure of a pneumatic diaphragm pump should not exceed half a kilogram; too high a pressure can damage the diaphragm.
This is not very good. The principle of a diaphragm pump is that the diaphragm swings back and forth to drive the liquid. Blowing with nitrogen to remove residual medium from the pump is ineffective. Excessive pressure causes damage to the diaphragm
In my opinion, whether to arrange coagulation depends on the following factors: 1. The requirements of the equipment management department itself. Are there corresponding regulatory guidelines to ensure operations are carried out in accordance with standards? 2. Is the process medium special in any way, such as whether it may condense inside the pump? 3. Service life: if it is to be stored for a long time, cleaning is definitely necessary. 4. Generally speaking, a pump must be cleaned after use; those who work with equipment cannot be so careless. In short, as long as the airflow and pressure during nitrogen purging are properly controlled, its impact on the pump is not significant. I hope for active discussion.
Personally, I think nitrogen purging isn’t thorough enough; just using fresh water for rinsing will do