What water should be used for pressure testing heat exchangers?
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What are the requirements for water in the pressure testing experiment of the heat exchanger’s shell side? Is low-pressure steam used in the shell side?
Either circulating water or fresh water will do; the water quality does not need to be too dirty!
It is also important to check whether the material of the heat exchanger is stainless steel; if so, ensure that the chloride content in the water does not exceed 25PPM.
Yes, there are certain requirements regarding the chloride ion content; ordinary tap water generally meets these requirements