Ammonia liquid pump selection
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What type of pump should be used to transport ammonia liquid? Please help me, thank you!
I have never made a liquid ammonia device, but I have read a lot of articles about liquid ammonia pumps. In fact, an ordinary centrifugal pump will suffice. The mechanical seal part must be paid special attention to. Liquid ammonia easily absorbs heat and vaporizes, causing the mechanical seal parts to shrink unevenly when cooled and cause leakage. Therefore, double-end mechanical seals are more popular.
There are special liquid ammonia pumps. You can search for manufacturers on Baidu.
Liquid ammonia is easy to handle, just use a shielded ammonia pump. Contact me if necessary. 13079849835
Canned pumps or magnetic pumps, as long as the medium is clean, the graphite bearings should be able to be used, and the problem of a small amount of non-condensable gas backflow in the pump body should be dealt with.
The most commonly used ones are magnetic pumps and canned pumps. Just choose the pump model. The main thing is that NPSH must leave enough margin.
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