Does a 30% KOH solution belong to Group 1 or Group 2 of the pressure vessel regulations?

2021-09-16View Original

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I received a heat exchanger; the fluid flowing in the shell side is water, while the fluid in the tube side is a 30% KOH solution. Even after checking relevant standards, it’s still not possible to determine the fluid category. Does anyone with expertise have an analysis?

Reply #22021-09-16

It can’t be considered highly hazardous; the second group got it, that’s my personal opinion

Reply #32021-09-24

Yes, the design temperature is below the boiling point; ultimately it is classified as belonging to the moderate hazard category of the second group

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Does a 30% KOH solution belong to Group 1 or Group 2 of the pressure vessel regulations?

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