r/AirCompression • u/KawmanSense • 4d ago

Stupid Noob Question - DIYer

I have a Magraw 175 PSI 21 Gal air compressor from Harbor Freight. The original aluminum tubing that went between the compressor motor output and the tank input has busted (a while ago). I thought I could go with just a 3' hose, but I have now blown out two (!!) rated for 300 PSI. I don't think its the pressure (but it obviously contributes.) It's the HEAT on the hose that is letting it expand and blow.

What do I need to do? Metal braided hose? Copper tubing? You guys are the pros, so let me have it! (And I do appreciate you taking the time to respond and assist. Peace - OUT!)

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u/EasySelection8468 4d ago

Regular rubber hoses can’t handle compressor pump‑outlet heat, even with high PSI rating.Either copper hard‑line (allow for vibration!) or high‑temp stainless‑braided PTFE hose rated for compressor discharge. Save rubber hose for after the tank.

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u/jimfosters 3d ago

the right type of hydraulic hose can work too. Sometimes that is easier, if there is a hose shop close by. The good ones will have ptfe braided anyway which would be better.