Getting Ready To Run Air Feeds..., Couple Questions Before I Get Started Options

[iiibdsiil]

I ran this by on a garage talk forum, so far my reply has been "I won't help you because I am not putting this website at stake if something happens" yada yada yada.

Hopefully someone here will answer my questions. Yes, I know PVC isn't recommended, etc.

Start Thread:

Okay, so I am going to run 1 1/4" PVC line. Yes, I chose PVC because I have heard from a few people locally that it is that much easier, cheaper, and it will work fine. People that have done it and used it for many years. I am still kinda skeptical, but these people I trust.

Now, I have a couple questions.

1. I am going to run 50 feet from one corner, and from that same corner, 20 feet the other way. I think I read somewhere that with a bigger feed (1.25") that you will gain volume, but lose pressure, is that correct? I will be running 125ish PSI at my main regulator, which will be between the tank and where the PVC will start. Also, my 50 foot and 20 foot feeds will be 11 feet high, thus needing to drop 7 feet or so, so that is going to be more volume. I will have a total of 5 drops. Rather have more than I need then kick myself later.

I know you like pictures so...

(IMG:http://www.lockeddoorracing.com/airline/DSC00916%20(Small).JPG)
Click here to see larger (5.0 megapixel) version

That is the area that I plan on doing the lines at. The wall that is on the right will be my 50 foot feed. And then the wall that the electrical is on will be my 20 foot or so lead.

2. How do I get around this little obstacle? I would rather not have to square around it because I think that would hurt air flow? Maybe I can get something that is more circular? Or will it not matter?

Picture...
(IMG:http://www.lockeddoorracing.com/airline/DSC00917%20(Small).JPG)
Click here to see larger (5.0 megapixel) version

I will only need to go over the one electrical conduit there, as that light is 10 feet high, and the feed will be at 11 feet.

Also, I am probably going to run the feed that goes from the compressor and up to the 11 foot mark directly in the corner, if I can find the T I would need to make this happen, if not, I will run it a couple inches in on the long wall.

[Kargeek]

I have had 1" pvc air lines in my shop for over 20 years now and never had a problem.
My max air pressure is 175psi.

Make sure that you attach the piping to the wals so it does not move under pressure. Look at the ratings for PVC piping and you will notice that the larger the diameter the less maximum pressure it will hold.

Schedule 80 pipe and fittings is thicker than traditional Schedule 40.

Keep PVC pipe out of sunlight or paint the piping. UV sunlight can turn it brittle.

Larger piping aids air volume/ flow and pressure builds at the final restriction point. 1-1/2 may be over kill unless you need a lot of airflow. Run your master horizontal trunk line high up on the wall and angle it slightly back to the air compressor so moisture drains back to it. With your vertical piping that drops down the walls to your air connections, build in a moisture collection pipe by installing a tee for your air fittings and a foot long pipe below it with a drain valve. I have a master pressure regular and water seperator at the connection of the compressor. I run an additional water seperator at a couple of my hose connections for when I'm painting. DH