I've had 3/4" PVC air lines in my garage & basement (9 outlets total) for 8 years now - connected to a 5Hp Craftsman compressor set at 110 PSI. The pipe's rated at 400 PSI and went together a lot easier than iron
So far, no problems.
For vibration resistance, have your pipe make a turn before clamping it to anything - this gives it wiggle room.
DANGER DANGER DANGER That is a liquid rating, not air. PVC can turn to shrapnel and cause serious injuries. You are sitting on a time bomb. Please check further and you will find more information on this.
Warren,
You are lucky to still be alive. Plastic pipe violates code and is VERY dangerous when used with compressed gasses, including air. If you get a crack in the pipe , you will have a CPVC hand grenade. I have seen PVC pipe go 200 feet and shatter the windshield of a car when being pressure tested with air. CPVC is even more dangerous than PVC when used as air lines. Change the PVC to copper or steel and save your own life.
Stretch
Look at your PVC again, it is rated for water, not air. Lots of people do stupid things for years and never get hurt. It don't make it right. Do not use PVC for air!!! Greg
That's like saying grandma smoked three packs a day and lived to be 90. It's possible that you will have no problems, but it is also possible that it will kill you.
here's one example of possible problems:
Lets not get hysterical but you could put your eye out.
Not trying to get into a fight here, but PVC was suggested to me 8 years ago by a friend who was a professional mechanic. Is there a reason a pipe that's rated to handle 400 pounds liquid can't be trusted with 100 pounds of gas?
YES Gas is easily compressed and will expand with great force when there is a rupture. Liquid under pressure barely compresses and if it lets go, there will be very little movement of the container and shrapnel.
Where I worked many years ago, we used to test heating coils with air in a tank. They would fill them with 50 psi in a tank of water. When high pressure units were built, they were hydrostatic tested up to 3000 psi because of the safety factor of pumping liquid under pressure. The were bench tested as it was not considered dangerous
Your friend may be a professional mechanic, but that does not mean he knows about plastics, air pressure and the resulting hazards. OSHA does not allow PVC, nor do the makers of the tubing allow it. A Google search will find a lot of information on the subject.
I understand there is a new material that is acceptable for air use but do not recall the specifications. Rubber hose rated for air can also be used.
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