I have a 6" feed main that will travel through a foundry.
The foundry temperature will get approximately 160 degrees (F). Should that sprinkler pipe need a heat shield to help keep the piping cool? I plan on welding the pipe that travels through the foundry, so no groove products will need to be installed in that environment. Thanks for input. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
5 Comments
Dan Wilder
6/10/2024 08:39:05 am
Is that the expected maximum ambient during smelting or pouring? Are there radiant heat expectations for heat transfer? Some insulated aluminum pipe wrap wouldn't hurt but I question the longevity of it....most places the insulation looks like a tossed cotton candy stick after the first year or so.
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Jack G
6/10/2024 10:00:30 am
The thing I d be most concerned with is Boyles law.
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Anthony
6/10/2024 10:04:45 am
A heat shield won't do anything if the ambient air is 160°F. Thermodynamics says any system left long enough to reach a steady state will equalize the temperatures regardless of any insulation. Similar to how insulations alone won't keep a pipe filled with water from freezing.
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franck
6/11/2024 01:32:31 am
And don’t forget the pressure relief valve at the sprinkler riser to limit the pressure in the system at 175 psi max (required by nfpa 13 since 2016).
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Jay G
6/11/2024 06:48:49 am
Along with Franck's comment, you need to look at the thermal expansion of the piping from fill water temperature to the expected ambient like you would in a hydronic system. An expansion loop will likely be required.
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