Replacing thermal insulation in a sweating chilled water pipe
Replacing thermal insulation in a sweating chilled water pipe
(OP)
Hi all:
In our property I recently discovered some sections of insulation on our chilled water pipe destroyed due to mechanical damage and these need to be replaced.
The problem that I have is that this chilled water pipe feeds some critical areas of our property and it will be a real nightmare to stop the supply, warm up the leg to not sweat and then replace the insulation.
Does anybody know of an insulation product that can be applied in a sweating chilled water pipe?
I know that this goes against all the traditional way to insulate chilled water pipes, but maybe there is a new product in the market that I'm not aware of that can address this type of situations.
Thanks a lot.
In our property I recently discovered some sections of insulation on our chilled water pipe destroyed due to mechanical damage and these need to be replaced.
The problem that I have is that this chilled water pipe feeds some critical areas of our property and it will be a real nightmare to stop the supply, warm up the leg to not sweat and then replace the insulation.
Does anybody know of an insulation product that can be applied in a sweating chilled water pipe?
I know that this goes against all the traditional way to insulate chilled water pipes, but maybe there is a new product in the market that I'm not aware of that can address this type of situations.
Thanks a lot.





RE: Replacing thermal insulation in a sweating chilled water pipe
i bet the old insulation is fiberglass with some "vapor barrier". Use some inherent vapor-tight product (some foam product)
RE: Replacing thermal insulation in a sweating chilled water pipe
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Replacing thermal insulation in a sweating chilled water pipe
Dehumidifying the space is not possible since it is a huge open area above our commercial space.
I was hoping that some genius already had developed a thermal insulation that could be applied in a sweating chilled water pipe without detrimental effect, but I guess that I have to go the traditional way and wait for the backlash from stakeholders...
RE: Replacing thermal insulation in a sweating chilled water pipe
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Replacing thermal insulation in a sweating chilled water pipe
you need to use special low-perm foam insulation. Even if someone cuts in it, or doesn't apply 100% correct, it is inherently low-perm.
Yes that is more expensive, but that is the case with quality most of the time.
RE: Replacing thermal insulation in a sweating chilled water pipe
They are not perfect, but if you cover them with suitable external sleeves or wrapping then you are still much better off than a rock wool type material which is wet and then doesn't perform?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Replacing thermal insulation in a sweating chilled water pipe
RE: Replacing thermal insulation in a sweating chilled water pipe