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Pex for air?

MikeL_2
Member Posts: 369
Hi all,
Anyone have experience using aqua pex for compressed air piping?
Anyone have experience using aqua pex for compressed air piping?
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Comments
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Yes I’ve used many times just follow the manufacturers operating specifications1
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We use it at the shop and this was actually a concern so from the compressor to the refrigerated drier is copper and then out of the drier is 1" pex.hot_rod said:Just watch the temperature and pressure ratings. Compressed air gets fairly hot, unless you use a cooler on it.
That copper coming out of the tank gets pretty hot.......Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0 -
Isn't plastic with compressed air discouraged because it can break in to pieces that can get loose and become projectiles if it breaks?0
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I looked around the PPI site for compressed air application. This report is mostly about testing with air or nitrogen. Maybe best to check with the tube manufacturer. I suspect different listings would be needed for compressed air use?
https://www.plasticpipe.org/common/Uploaded files/1-PPI/RECOMMENDATIONS/Recommendation F.pdfBob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream1 -
I have seen a blue colored PAP listed for compressed air. It was put in a large repair shop by the compressor manufacturer, a German brand compressor and piping system, Kaeser as I recall.
RapidAir is another brand of listed plastic compressed air tube.Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
Thanks everyone! I convinced the owner of a nearby woodworking shop to replace the existing compressed air piping. It was changed from galvanized to pvc a decade ago.....0
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With what will her replace it with? I'd be careful not to suggest a product that is not listed for theMikeL_2 said:Thanks everyone! I convinced the owner of a nearby woodcworking shop to replace the existing compressed air piping. It was changed from galvanized to pvc a decade ago.....
application. Certainly the PVC needs to go.Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0
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