Which type of shielded pump should be recommended for easily vaporizable media?
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For transporting easily vaporizable media, Japanese manufacturers of shielded pumps use a reverse circulation type, while German manufacturers recommend an internal pressurization type. The Japanese manufacturers claim that their pumps are durable and can function in any situation. The German said: I don’t have a tail. How exactly should one make these choices? I would like to invite an expert who has used it to give lessons
I think for media that are easy to vaporize, it’s better not to use shielded pumps. Is it necessary to use them when the medium is toxic and valuable?