Chilled Water Pipe
Chilled Water Pipe
(OP)
Can anyone tell me the means how to overcome the contraction of chilled water pipe in the piping design? I have about 1000ft STRAIGHT pipe ( I can not have the L loop or U loop within it), the contraction is about 2". I know I can have expansion joint or cold spring to overcome expansion for the steam pipe. But how can I do for the chilled water pipe?
Any information and any reference will be appreciated.
Robin
Any information and any reference will be appreciated.
Robin





RE: Chilled Water Pipe
You can use stainless steel flexible bellows for this application. They come in flanged ends and simply you have to install in your pipe line.
Regards,
RE: Chilled Water Pipe
Could you please tell me some manufacturers of this kind of stainless bellows?
Robin
RE: Chilled Water Pipe
Of course, you can install expansion bends or loops just as would be done in a hot line. While more expensive, it creates a more robust system. Whether it is justified for chilled water is questionable.
RE: Chilled Water Pipe
You can also still use cold spring; it's just a matter of proper design. If you do that make sure you address the reaction forces set up on the equipment flanges, or whatever your end connections are, after the system reaches operating temperature.
Thanks!
Pete
pjchandl@prou.com
RE: Chilled Water Pipe
Upon reflection, the Metraflex is probably the best solution, providing there are no plant rules or specifications preventing it's use, and the chilled water pipes are not very large diameter. There is no pressure thrust generated, and there is no hose in compression problems.