One more reason not to use PVC is that it won't condense the water out of
the air like metal pipe will. I plan on using L copper and soldering the
joints in my new shop. A good friend has it this way and he never has water
in his air.
Be Safe!
Happy Holidays!
Mike Boteler
'56 8400 Wrecker
Hughesville, Maryland
----- Original Message -----
From: "john dorsey" <jrdorsey@strato.net>
Cc: <oletrucks@autox.team.net>
Sent: Friday, December 14, 2001 12:25 AM
Subject: Re: [oletrucks] compressed air hell and back again
> OK, Let's define terms here. If you are seeing PVC pipe only rated for
> 125psi it is thin-wall irrigation pipe and is illegal (most places) to
> even use it for water inside a building.
>
> Schedule 40 pvc pipe in the sizes (1/2"-3/4") used for home shop air is
> rated at over 400 psi.
>
> If I were piping for air I would use Schedule 80 which is twice as thick
> as schedule 40 and can handle much more pressure.
>
> Now I am NOT recomending using PVC, I am just saying that the RIGHT pipe
> if not defective, PROPERLY installed will handle the pressures of a home
> shop air system.
>
> Note I say "if not defective". I say this because I am seeing more and
> more products that are not made well. Before you use any "Life-Safety"
> issue product, inspect it. Even black pipe will blow if it has a bad
> seam. Look over what you are doing and if there is any doubt don't do
> it. This includes engine stands, and lifts, and jacks, and brake parts.
> All it takes is one dips*it worker hung over, or high on wacky weed, to
> improperly crimp a brake line and one of us could be dead.
>
> One big caveat about PVC, it hates heat, so don't tie it directly to the
> compressor or use it where it will be exposed to more than room
> temperature. I have seen where plumbers have tied it to the cold inlet
> on a water heater and it has gotten hot enough to fail on 40 psi water
pressure.
>
> Pete wrote:
> >
> > OK I've watched this thread long enough.
> >
> > DO NOT USE PVC.
> >
> > I say this because my best employee and very good friend lost his
eyesight
> > in one eye after over pressurizing a pvc line. Simple mistake that
someone
> > made and we didn't catch it before it happened. Sure you will see it
rated
> > at 125 psi and yes I have put 200 psi on a stretch once, but the bottom
line
> > is that this is not what it is made for and the manufactures will not
stand
> > behind it and insurance companies won't protect you from product
liabilities
> > outside of the intended useage. It is a serious matter not worth loosing
> > your eyesight over a few dollars. I'm not rich, in fact my employees
made
> > more than me this year but the point is to spend the extra money for at
> > least black pipe which is rated at a minimum of 400 psi. I have 1" black
> > pipe in our small fabrication shop with the proper drip traps / oilers /
> > water traps etc. It cost me about 1200.00 for a two stage compressor,
pipe
> > and all drip traps / oilers / water traps and connections for four
locations
> > in a 3000 sqft shop.
> >
> > It cost my best friend his 1/2 his eyesight to save 300 dollars.
> >
> > Pete
>
> --
> John Dorsey
> Wauchula FL
> http://www.strato.net/~jrdorsey
> '49 3800 Chevy Panel
> '52 640 GMC Firetruck
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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