I was into a Amish window factory the other day and their air lines
caught my eye. They used 3" PVC pipe for all their air lines
suspended from the ceiling with supports and T's with snap couplers at
all the work stations. They used brass gas line couplers for shut
offs for the various branches. A 8" pressure gauge noted 145# PSI at
the end of the line. What are the Plusses for this type of system
other than the line acting as a storage media? I didn't see any water
separators and was wondering if they were using a engine driven
compressor in the cold and drawing cold air into the compressor and
bringing it in a warm shop what effect this type of line would have?
If that is 3" DWV pipe, I don't think I'd go back in there. I understand it
isn't good for pressure lines, and will shatter and blow plastic shrapnel
all over the place.
And they don't use it in the summer when it is warm and humid?
> I was into a Amish window factory the other day and their air lines
> caught my eye. They used 3" PVC pipe for all their air lines
> suspended from the ceiling with supports and T's with snap couplers at
> all the work stations.
That's a bomb waiting to explode.
Definitely would not catch me in the place.
BTW, the concept is good, it's the PVC that is a problem.
I checked out the pipe at Home Depot and the PSI ratings on this pipe
and it is almost double than what they are running on it. It looked
like the outside diameter was about 3 inch. This place is on the
corner of 700 and Shed road. That may be in Burton, Ohio.
The problem is that most PVC pipe is not UV stabilized.
If it's painted or enclosed, great. If not, it probably gets brittle
I lost count of how many PVC shop aids, truck racks, work stands,
storage devices, etc... that I made that became brittle and simply
crumpled with sunlight exposure.
Pressure ratings for PVC are given for liquids not air. Couple that with
the damage from UV on those pipes and it's tendency to go brittle with time,
and well, let's just say I wouldn't use PVC for air lines.
But is that water or air rating? When water bursts, it just flows out and
does not have the explosive force of compressed air. Both OSHA forbids it
and the makers of the pipe recommend against using it for air.
A tractor service shop in town uses 1" CPVC for all their air lines.
(the light tan stuff) They've used it for the last 18 years without
incident. Their system is at 150 PSI leaving the compressor. Air is
used for wrenches, tires, hammers, and etc. Parts of the system gets
some direct sunlight when the bay doors are open. There are large
skylights but they are corregated plexi and diffuse the light.
They completely drain the system each night and power it back up each
I found it much less of a hassle to hang two reels, one at each end of
my shop and connect them with air hoses. But then, I'm not working in
a six bay shop, either.
A few years back I stopped into an Amish woodworking shop In East Otto,
NY and was surprised to see a brand new Unisaw in the shop. The owner
must have read my face because the first thing he said is, "It's allowed
as long as it isn't powered off the grid".
He was running it off a generator tied to a Chevy V8.
Many years ago, I think it was FWW which featured an article about an
Amish shop which ran entirely off hydraulic and air motors. The main
power plant was a diesel which ran compressors and/or hydraulic pumps,
I am not entirely certain which was the main power supply. IIRC, the
routers were air driven.
Diesels do not require any electrical auxiliary equipment, and can be
started off compressed air, which can either be saved from when the
diesel last ran, or pumped up by hand.
I was always under the impression that sharing a network of electrical
devices with sinners was the reason for their prohibition.
It reminds me of my grandfather when one day we went to a store he had sworn
he'd never use again: "Anger is one thing but business is business."
Sounds like the Amish are reaching a bit to justify what everybody else has
already accepted: that we upgrade our circumstances as required. If the Amish
were really as old fashioned as the stereotype would suggest, they'd walk
instead of riding in one of those newfangled horse drawn carriages.
Practicality usually wins out.
That's the thing, they aren't "old fashioned", just careful about what
changes they make and when they make them.
They don't seem to be opposed to change, but they seem determined that
they are going to control the changes rather than letting the changes
control them. They don't forbid their people to have cars because cars
are "newfangled", their reasons are more complex than that--they've
watched what happened in the "English" world when everybody had cars and
they aren't OK with it.
On Sun, 4 Mar 2007 06:33:34 -0500, "Mortimer Schnerd, RN"
<mschnerdatcarolina.rr.com> wrote:>Nova wrote:
My understanding of their original reasoning was that something had to be
found in scripture before they would use it. Thus, no buttons because
buttons aren't in the Bible. Same thing with electricity and other modern
conveniences. However, there are chariots and other horse-drawn
conveyances mentioned in the Bible, thus, by default they were OK. It
seems that they have made some accomodations more recently and as one
poster has indicated, they are trying to be discerning on what they bring
in to attempt to exclude what they view as negative influences.
If you're gonna be dumb, you better be tough
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