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Absolute roughness for rubber lined carbon steel

Q. I am performing hydraulic calculation for cooling water system and need to know what will be a good guesstimate absolute roughness for rubber lined carbon steel pipes.

Christian Etowa
Process Engineer - Calgary, AB, Canada
2007

A. Just found a reference of absolute roughness for rubber lined pipes in McGraw-Hill Slurry Systems Handbook ⇦[this on Amazon affil links]. In that book it's given as 0.00015 m.

Horst Müller
pensioner - Vanderbijlpark South Africa
May 3, 2010

Q. Hello. I have a question.
Regarding rubber lining of carbon steel in piping, I would like to know each roughness of new and fouled rubber lining, or typical differences between new and fouled rubber lining.
If you have the data, please let us get your advice.
Your response would be highly appreciated.

Jeong
piping - jinju, republic of korea
May 11, 2012

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