I am going to route compressed air from my compressor location to one
or two other positions in my shop. I am looking at about 50 or more
feet of plumbing. I Googled some information regarding PVC, and
while it is economical, I still am not comfortable. I have come down
to using standard 1/2" black gas pipe and fittings.
Any other ideas, drawbacks, etc.
Thanks
RonB
On 5/17/2012 11:07 AM, RonB wrote:
> I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
> Thanks
>
> RonB
I like tiredospam would go the air "hose" route. QUICK and cheaper.
On May 17, 8:12=A0pm, Steve Barker <[email protected]> wrote:
> On 5/17/2012 11:07 AM, RonB wrote:
>
> > I am going to route compressed air from my compressor location to one
> > or two other positions in my shop. =A0I am looking at about 50 or more
> > feet of plumbing. =A0 I Googled some information regarding PVC, and
> > while it is economical, I still am not comfortable. =A0I have come down
> > to using standard 1/2" black gas pipe and fittings.
>
> > Any other ideas, drawbacks, etc.
>
> > Thanks
>
> > RonB
>
> everyone will poo poo the pvc idea, but i've had it in my shop for
> decades. =A0 Sweat copper works well also. =A0I personally wouldn't screw
> (no pun intended) with the black iron. =A0It'll rust inside and be a mess
> in the filters and separators.
>
> --
> Steve Barker
> remove the "not" from my address to email
Steve-
Just because you have used PVC for compressed air for decades and have
not suffered a failure does not counter the scientific evidence that
PVC is not an appropriate material for delivery of compressed air.
http://www.lni.wa.gov/Safety/Basics/HazAlerts/902.asp
The fact that your PVC has not failed or caused injury is merely
anecdotal.
cheers
Bob
On Mon, 21 May 2012 21:17:20 -0400, [email protected] wrote:
>On Fri, 18 May 2012 20:09:47 -0400, Dave <[email protected]> wrote:
>
>>On Fri, 18 May 2012 18:12:46 -0500, Steve Barker
>>>> And it is WHEN, not IF.
>>>
>>>how long does it take? the shop i retired from was built in '74 or so
>>>and was still doing fine when i left in '06. (160 psi kick off pressure)
>>> Also, my own garage has had pvc air plumbing for almost the same
>>>length of time. Only 130 psi at home.
>>
>>You really are an obnoxious snot aren't you?
> He can do the world a favor and keep doing stupid stuff like that.
>One of these times something will finally get him???
NOW who's being an obnoxious snot?
You kids _behave_ now, y'hear?
--
Progress is the product of human agency. Things get better because
we make them better. Things go wrong when we get too comfortable,
when we fail to take risks or seize opportunities.
-- Susan Rice
>
> Two trolls duke it out.
>
Yeah and a few days ago I posted an OT concern about the increasing
number of labeled and unlabeled off topic posts (including troll
materiel); and as expected got criticized. But the fact is, I have
been hanging out and contributing to this group for 10-15 years and
had it has been a good experience. But the increasing number of off
topic material (excluding spam) that appears to be coming for
subscribers is increasing rapidly. If it continues rec.woodworking
will become a useless wasteland just like one of our RV groups and
others. The increasing amount of venomous name calling also directly
follows the path that ( http://groups.google.com/group/rec.outdoors.rv-travel/topics?lnk=srg
) took. When I looked at rec.outdoors,rv. travel at the time of this
post there were 28 items on the subject list and one was on topic.
There is also a very large amount of fighting, name calling and
profanity on that site.
What this group needs to understand is that many, maybe most, of us
are woodworkers who spend time working in the shop, spending time with
families, etc. We do not spend large amounts of time sitting in front
of the keyboard plotting filtering strategies to protect us from the
crap that shows up in these groups. When using a group becomes too
difficult we just quit using it.
You won't miss me but as other folks fade away, as they have with
other groups, you will miss the knowledge and resources these people
provide.
RonB
On May 20, 8:27=A0am, "Eric" <[email protected]> wrote:
> Unfortunate but, some pride themselves with destroying groups and
> Usenet by infiltrating the group and constantly raising the grain of
> the types with the 20 grit personalities. Sometimes this takes a few
> sockpuppets and =A0that is done on a professional calibre. I have seen
> too many groups bite the dust this way. This group has surprisingly
> survived a tonne of this BS.
>
> One has to wonder that some editorialize so well, with so much time
> spent here, actually do any woodworking, at all.
>
> --------"RonB" =A0wrote in message
>
> news:[email protected]...
>
> Yeah and a few days ago I posted an OT concern about the increasing
> number of labeled and unlabeled off topic posts (including troll
> materiel); and as expected got criticized. =A0 But the fact is, I have
> been hanging out and contributing to this group for 10-15 years and
> had it has been a good experience. =A0But the increasing number of off
> topic material (excluding spam) that appears to be coming for
> subscribers is increasing rapidly. =A0If it continues rec.woodworking
> will become a useless wasteland just like one of our RV groups and
> others. =A0The increasing amount of venomous name calling also directly
> follows the path that (http://groups.google.com/group/rec.outdoors.rv-tra=
vel/topics?lnk=3Dsrg
> ) took. =A0When I looked at rec.outdoors,rv. travel at the time of this
> post there were 28 items on the subject list and one was on topic.
> There is also a very large amount of fighting, name calling and
> profanity on that site.
>
> What this group needs to understand is that many, maybe most, of us
> are woodworkers who spend time working in the shop, spending time with
> families, etc. =A0We do not spend large amounts of time sitting in front
> of the keyboard plotting filtering strategies to protect us from the
> crap that shows up in these groups. =A0When using a group becomes too
> difficult we just quit using it.
>
> You won't miss me but as other folks fade away, as they have with
> other groups, you will miss the knowledge and resources these people
> provide.
>
> RonB
Yeah but maintaining the site's integrity is easy:
1 - Don't post off topic
2 - If you are compelled to post off-topic, include "OT" in your
subject line.
Don't get me wrong. There is nothing wrong with occasional jokes or
good-intent banter. That is what builds camaraderie among us. But
when a group gets recognized as tolerant of BS, the spammers, trolls
and others flock like geese.
We are on the verge of becoming a sanctuary.
RonB
On Sat, 19 May 2012 13:05:21 -0400, Marty <[email protected]>
wrote:
>Hmmm seems as though most everyone is assuming Sch 40 PCV pipe
>not the hose sold specifically for air distribution.
>Seems like black pipe, while adaptable for the task is
>very difficult to work with and VERY difficult to easily
>add additional ports in the future.
>
>I don't think the PVC specifically for air distribution will
>shatter and explode, just rupture at the weak point. Otherwise
>the hose reels for air distribution (like I have in my shop) would
>not be practicable.
>
>IMHO
That hose is NOT PVC pipe. Hose is safe if tied down often enough to
keep it from swinging around and taking your eye out. There is, to my
knowlwdge, NO PVC pipe made for air distribution.
>
>Marty
>
>
>On 5/17/2012 12:07 PM, RonB wrote:
>> I am going to route compressed air from my compressor location to one
>> or two other positions in my shop. I am looking at about 50 or more
>> feet of plumbing. I Googled some information regarding PVC, and
>> while it is economical, I still am not comfortable. I have come down
>> to using standard 1/2" black gas pipe and fittings.
>>
>> Any other ideas, drawbacks, etc.
>>
>> Thanks
>>
>> RonB
RonB <[email protected]> wrote in news:26d24e5c-7a34-45fc-b88e-
[email protected]:
> I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
> Thanks
>
> RonB
I've thought about running a standard air hose for my compressed air
piping. Except for splicing into it, it's cheap for good quality lengths
(vs pipe) and going to be much easier to route.
There's systems made exactly for this purpose that look like they won't
break the bank ($100 for a basic setup, probably 2-300 for something
nice) and will probably be safer than PVC. Looks like RapidAir is one of
the big systems.
PVC should be fully grounded by wrapping a metal pipe around it. *g*
Puckdropper
--
Make it to fit, don't make it fit.
"RonB" wrote:
>I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come
> down
> to using standard 1/2" black gas pipe and fittings.
----------------------------------
Avoid PVC like it was a bomb, because that is exactly what pvc pipe
and compressed air create.
1/2" pipe is too small for distribution piping.
Run at least 1" pipe.
You can buy 5 ft precut and threaded pipe nipples from a plumbing
supply house.
Connect nipples with a "Tee" with side pointed up toward ceiling.
Add 2, 1/2" Street ells and reducer bushing at the tee so that the
outlet is now pointing down.
Add 1/2?" hose with a quick connect fitting to reach belt high for
quick connect.
Incline 1" pipe about 1/2"/12" run.
Add petcock at end of 1" run to drain.
Have fun.
BTDT, don't need the T-Shirt.
Lew
On 5/17/2012 10:07 AM, RonB wrote:
> I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
> Thanks
>
> RonB
I have copper but I did it before the price went *way* up.
I know of a lot of places (tire shops, etc.) that have black pipe.
I personally wouldn't hesitate to use schedule 80 PVC but then I never
exceed 120 psi on my compressor.
Max
RonB <[email protected]> wrote in
news:ded006c2-a98d-4ec8-a929-72000022aae5@w13g2000vbc.googlegroups.com:
>
> I am not going to use PVC. Black pipe was was pretty much my going-in
> position when I started thinking about it and when I posted this. I
> am not ruling out pipe but as I Googled around I found some
> interesting approaches using regular air hose and shop made copper
> terminations. This is one of them --
> http://americanwoodworker.com/blogs/shop/archive/2009/09/15/plumb-your-
> shop-with-air.aspx
>
> No decision yet, but this has appeal. My shop is a 1,024 sf garage
> that shares space with cars, but adequate. I use a french-cleat wall
> rail system that allows me to move cabinets and racks pretty easily if
> I want to change configuration of certain areas. The hose approach
> seem flexible because you can change routing and add service points
> fairly easily. Fabricating the individual copper service points might
> be a little fiddly, but when made they can be used in different places
> if I switch stuff around. Pipe - not so easy.
>
> No decision yet but I'm kinda liking the hose system.
>
> Ron
>
One thing I'd be looking at is making sure the hose connections are tight
and solid. Not only are air leaks annoying, but if a connection lets go
it not only makes a big noise, but the hose tends to go flying.
I've seen many hose clamps distort and break while trying to torque them
down, but it may be the quality of the clamp.
Please keep us updated, I've thought about doing the same thing,
especially since air hose is so much less expensive than pipe.
Puckdropper
--
Make it to fit, don't make it fit.
[email protected] wrote in news:2mqlr7dnf189os1iq1117cirforig9vgni@
4ax.com:
> That hose is NOT PVC pipe. Hose is safe if tied down often enough to
> keep it from swinging around and taking your eye out. There is, to my
> knowlwdge, NO PVC pipe made for air distribution.
I'm curious... Would covering the PVC with a plastic-like coating (like
THHN/THWN wire) sufficiently reduce the risk of using PVC with compressed
air? I guess the trick would become making sure the coating binds properly
to the PVC and adheres properly with the PVC glue.
Looks like some ABS pipes might be rated for compressed air use, but that
was only turned up after a quick Google search.
Puckdropper
--
Make it to fit, don't make it fit.
On Fri, 18 May 2012 18:12:46 -0500, Steve Barker
>> And it is WHEN, not IF.
>
>how long does it take? the shop i retired from was built in '74 or so
>and was still doing fine when i left in '06. (160 psi kick off pressure)
> Also, my own garage has had pvc air plumbing for almost the same
>length of time. Only 130 psi at home.
You really are an obnoxious snot aren't you?
RonB wrote:
> I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
Easy Ron - stay away from PVC. Unless of course, it is grounded (NO - that
was a joke...). Use either black pipe or copper. Copper is better, but for
most uses, black pipe is just fine. Just be sure to put down drops and
drains below every attachment point in the lines. For a 50' run or two, the
cost is not going to be so great as to even worry about the economy of PVC.
So - do not get comfortable with that idea.
--
-Mike-
[email protected]
On Thu, 17 May 2012 22:12:31 -0500, Steve Barker
<[email protected]> wrote:
>
>everyone will poo poo the pvc idea, but i've had it in my shop for
>decades.
Good for you, but I'd never take the chance. In industry, it is an
OSHA violation. It has been proven to fail.
On May 19, 3:41=A0pm, tiredofspam <nospam.nospam.com> wrote:
> Overkill.
>
> Use air hose for the drops too.
> very flexible, There is really no need for copper, or black pipe.
> But hey it's your money, and your time.
>
> On 5/19/2012 4:06 PM, RonB wrote:
>
>
>
>
>
>
>
> > On May 19, 12:05 pm, Marty<[email protected]> =A0wrote:
> >> Hmmm seems as though most everyone is assuming Sch 40 PCV pipe
> >> not the hose sold specifically for air distribution.
> >> Seems like black pipe, while adaptable for the task is
> >> very difficult to work with and VERY difficult to easily
> >> add additional ports in the future.
>
> > I am not going to use PVC. Black pipe was was pretty much my going-in
> > position when I started thinking about it and when I posted this. =A0I
> > am not ruling out pipe but as I Googled around I found some
> > interesting approaches using regular air hose and shop made copper
> > terminations. =A0This is one of them =A0--
> >http://americanwoodworker.com/blogs/shop/archive/2009/09/15/plumb-you...
>
> > No decision yet, but this has appeal. =A0 My shop is a 1,024 sf garage
> > that shares space with cars, =A0but adequate. =A0I use a french-cleat w=
all
> > rail system that allows me to move cabinets and racks pretty easily if
> > I want to change configuration of certain areas. =A0The hose approach
> > seem flexible because you can change routing and add service points
> > fairly easily. =A0Fabricating the individual copper service points migh=
t
> > be a little fiddly, but when made they can be used in different places
> > if I switch stuff around. =A0 Pipe - not so easy.
>
> > No decision yet but I'm kinda liking the hose system.
>
> > Ron
I'm retired and this is my hobby shop is so time is not a real big
deal. But I am a retired tight-a**ed Irishman so money is a
consideration. I'm probably over-playing it, but the purpose-made
copper terminations look kinda classy considering everything else is
hose.
Well - maybe not classy :^)
On May 20, 9:02=A0am, "m II" <[email protected]> wrote:
> You, and you and me just violated those rules....LOL
> Yeah but maintaining the site's integrity is easy:
>
> 1 - Don't post off topic
> 2 - If you are compelled to post off-topic, include "OT" in your
> subject line.
>
> Don't get me wrong. =A0There is nothing wrong with occasional jokes or
> good-intent banter. =A0That is what builds camaraderie among us. =A0But
> when a group gets recognized as tolerant of BS, the spammers, trolls
> and others flock like geese.
>
> We are on the verge of becoming a sanctuary.
Good Grief - You are absolutely correct. OOoopppppss. ;0)
RonB
> RonB
On 5/19/2012 8:57 AM, Jim Weisgram wrote:
> On Fri, 18 May 2012 20:14:30 -0400, Dave<[email protected]> wrote:
>
>> On Fri, 18 May 2012 18:16:25 -0500, Steve Barker
>>> lines i pulled out of my 140 year old house were galvanized. They say
>>> don't do that either. Hmmmmm.... real world, or pencil pusher???
>>
>> Hmmmmm.... real world or a*hole. You are so full of yourself aren't
>> you? It's a real education watching you make a fool of yourself with
>> most every message.
>
>
> Plonk #2. Into the black hole with you.
yeah, i plonked him also.
--
Steve Barker
remove the "not" from my address to email
On 5/18/2012 7:14 PM, Dave wrote:
> On Fri, 18 May 2012 18:16:25 -0500, Steve Barker
>> lines i pulled out of my 140 year old house were galvanized. They say
>> don't do that either. Hmmmmm.... real world, or pencil pusher???
>
> Hmmmmm.... real world or a*hole. You are so full of yourself aren't
> you? It's a real education watching you make a fool of yourself with
> most every message.
Dave, i don't know what's up your ass, but i just try to go through life
without interference from other people. I don't get in their business
and don't expect them to get into mine. Everyone seems to be uptight
about something and always going off about nothing. So, if you have a
problem with me then filter me out. And thanks for calling me names.
It's real grown up of you. Don't bother to reply, i've already filtered
you out.
--
Steve Barker
remove the "not" from my address to email
On 5/18/2012 7:09 PM, Dave wrote:
> On Fri, 18 May 2012 18:12:46 -0500, Steve Barker
>>> And it is WHEN, not IF.
>>
>> how long does it take? the shop i retired from was built in '74 or so
>> and was still doing fine when i left in '06. (160 psi kick off pressure)
>> Also, my own garage has had pvc air plumbing for almost the same
>> length of time. Only 130 psi at home.
>
> You really are an obnoxious snot aren't you?
no, why? A simple ask and answer situation as i see it.
--
Steve Barker
remove the "not" from my address to email
"RonB" <[email protected]> wrote in message
news:26d24e5c-7a34-45fc-b88e-1a44d52aa006@eh4g2000vbb.googlegroups.com...
>I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
> Thanks
>
> RonB
Avoid the PVC. An alternative though, is other plastic air hoses made for
that purpose. They are flexible and at worst, will split rather than
shatter.
Black pipe is a good way to go. Durable and reasonably priced. I just paid
$1.25 a foot for some. Copper is better, but much more costly.
TIP: Once you figure where you want the drops, add two or three more. If
you are joining two lengths, use a tee and plug rather than a coupler.
You'll be thankful in a year or five when you want to add another leg.
>
> I'm retired and this is my hobby shop is so time is not a real big
> deal. But I am a retired tight-a**ed Irishman so money is a
I understand, I married a tight-a**ed Irish woman.. can't get anything
past her, or out of her.
> consideration. I'm probably over-playing it, but the purpose-made
> copper terminations look kinda classy considering everything else is
> hose.
>
> Well - maybe not classy :^)
And I understand that its your hobby and enough said. It's the same here.
Seattle breeds a lot of them.
-------
"Jim Weisgram" wrote in message
news:[email protected]...
Plonk #1
In article <[email protected]>,
[email protected] says...
>
> On 5/18/2012 5:04 AM, Ed Pawlowski wrote:
> > On Thu, 17 May 2012 22:12:31 -0500, Steve Barker
> > <[email protected]> wrote:
> >
> >
> >
> >>
> >> everyone will poo poo the pvc idea, but i've had it in my shop for
> >> decades.
> >
> > Good for you, but I'd never take the chance. In industry, it is an
> > OSHA violation. It has been proven to fail.
> >
> >
> >
>
> yeah well, they say (now) not to use soft copper for NG lines and
> hookups. But that's all we had for almost a century. Also, ALL the NG
> lines i pulled out of my 140 year old house were galvanized. They say
> don't do that either. Hmmmmm.... real world, or pencil pusher???
The problem with galvanized is that the coating inside can flake off and
clog gas jets, not that the pipe fails. 140 years ago they probably
hadn't figured that out yet.
As for soft copper, I arrived at the very old building occupied by the
Compupro dealer in New Haven one time to find it locked up. I called
the owner, who I knew personally, and asked him what was going on. Seems
that someone had tied a piece of cloth to this soft copper pipe sticking
out of the floor for the purpose of entertaining the cat. The cat, in
the course of being entertained, bent the pipe back and forth enough to
work harden it and break it. The fire marshall wouldn't let them reopen
until they had replaced all the gas pipes with black steel, which,
whatever else one can say about it, is pretty much impervious to cats.
Air and gas are different situations though. Gas is very low pressure
but if the pipe breaks and nobody notices the building burns down. Air
won't burn down the building but if someone is standing next to the pipe
when it decides to go bust they can get seriously injured. A shard of
pipe in your eye can ruin your whole day.
The OP might want to look into PEX. The failure mode is to split rather
than to shatter and there is a version (pex-al-pex) which is rated for
compressed air. The stuff is incredibly easy to use and if it does go
bust repairs are also quick and easy.
In article <[email protected]>,
[email protected] says...
>
> On 5/18/2012 1:34 AM, DD_BobK wrote:
> > On May 17, 8:12 pm, Steve Barker<[email protected]> wrote:
> >> On 5/17/2012 11:07 AM, RonB wrote:
> >>
> >>> I am going to route compressed air from my compressor location to one
> >>> or two other positions in my shop. I am looking at about 50 or more
> >>> feet of plumbing. I Googled some information regarding PVC, and
> >>> while it is economical, I still am not comfortable. I have come down
> >>> to using standard 1/2" black gas pipe and fittings.
> >>
> >>> Any other ideas, drawbacks, etc.
> >>
> >>> Thanks
> >>
> >>> RonB
> >>
> >> everyone will poo poo the pvc idea, but i've had it in my shop for
> >> decades. Sweat copper works well also. I personally wouldn't screw
> >> (no pun intended) with the black iron. It'll rust inside and be a mess
> >> in the filters and separators.
> >>
> >> --
> >> Steve Barker
> >> remove the "not" from my address to email
> >
> > Steve-
> >
> > Just because you have used PVC for compressed air for decades and have
> > not suffered a failure does not counter the scientific evidence that
> > PVC is not an appropriate material for delivery of compressed air.
> > http://www.lni.wa.gov/Safety/Basics/HazAlerts/902.asp
> >
> > The fact that your PVC has not failed or caused injury is merely
> > anecdotal.
> >
> > cheers
> > Bob
> >
>
> i noticed that is a governmental link. Is this the same government that
> has allowed 0bummer to drive us into socialism? Osha and government
> opinions are of no consequence to me.
So what means does the government of the state of Washington have to
resist "0bummer"?
As for OSHA and government opinions, OSHA reports several incidents of
PVC used for compressed air shattering with resulting injuries.
<http://www.osha.gov/dts/hib/hib_data/hib19880520.html>
You can ignore those reports if you wish, however if someone is in your
shop and gets injured when your pipes decide to blow (and you know that
by Murphy's Law the guy who gets injured will be related to the best
liability lawyer in the state) then you're going to find that the courts
will not ignore them. Of course you may be one of those arrogant fools
who thinks that it can't happen to him or that he'll be able to ignore
the court. Good luck with that.
...and ignoring gun controls.
--------
"DD_BobK" wrote in message
news:[email protected]...
So govt & OSHA directives hold no sway with you........looks like it
started as a non-government initiative.
I guess next you'll be arguing against changes / updates to seismic
design code because they're based on "pencil pusher" research &
analysis?
cheers
Bob
Wow! Pot and kettle thing all over.
Two trolls duke it out.
-----------
"Steve Barker" wrote in message
news:[email protected]...
Dave, i don't know what's up your ass, but i just try to go through
life
without interference from other people. I don't get in their business
and don't expect them to get into mine. Everyone seems to be uptight
about something and always going off about nothing. So, if you have a
problem with me then filter me out. And thanks for calling me names.
It's real grown up of you. Don't bother to reply, i've already
filtered
you out.
--
Steve Barker
remove the "not" from my address to email
You, and you and me just violated those rules....LOL
--------
"RonB" wrote in message
news:264af5b9-2ed2-4246-a505-08a0b21751be@i19g2000yqn.googlegroups.com...
Yeah but maintaining the site's integrity is easy:
1 - Don't post off topic
2 - If you are compelled to post off-topic, include "OT" in your
subject line.
Don't get me wrong. There is nothing wrong with occasional jokes or
good-intent banter. That is what builds camaraderie among us. But
when a group gets recognized as tolerant of BS, the spammers, trolls
and others flock like geese.
We are on the verge of becoming a sanctuary.
RonB
Steve Barker <[email protected]> writes:
>
>how long does it take? the shop i retired from was built in '74 or so
The biggest problem is with impact damage. Something strikes the PVC
which is under pressure and it fails catastrophically. Enclosing it in
suitable materials to prevent impacts and contain the fragments is allowable.
They do recommend a max of 100psi when using protected or buried PVC.
scott
On 5/17/2012 11:07 AM, RonB wrote:
> I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
> Thanks
>
> RonB
everyone will poo poo the pvc idea, but i've had it in my shop for
decades. Sweat copper works well also. I personally wouldn't screw
(no pun intended) with the black iron. It'll rust inside and be a mess
in the filters and separators.
--
Steve Barker
remove the "not" from my address to email
Yep, pretty nice. HF was selling that for under $40... but it
disappeared from their product list. Wish I had bought it.
Looks like a PEX system basically, except they have the hardware for the
drops that make nice connection endpoints.
Right now northern tool is $99 for that setup.
Rockler $139.99
You buy additional T's and outlets.
On 5/17/2012 2:38 PM, Puckdropper wrote:
> RonB<[email protected]> wrote in news:26d24e5c-7a34-45fc-b88e-
> [email protected]:
>
>> I am going to route compressed air from my compressor location to one
>> or two other positions in my shop. I am looking at about 50 or more
>> feet of plumbing. I Googled some information regarding PVC, and
>> while it is economical, I still am not comfortable. I have come down
>> to using standard 1/2" black gas pipe and fittings.
>>
>> Any other ideas, drawbacks, etc.
>>
>> Thanks
>>
>> RonB
>
> I've thought about running a standard air hose for my compressed air
> piping. Except for splicing into it, it's cheap for good quality lengths
> (vs pipe) and going to be much easier to route.
>
> There's systems made exactly for this purpose that look like they won't
> break the bank ($100 for a basic setup, probably 2-300 for something
> nice) and will probably be safer than PVC. Looks like RapidAir is one of
> the big systems.
>
> PVC should be fully grounded by wrapping a metal pipe around it. *g*
>
> Puckdropper
On May 17, 9:07=A0am, RonB <[email protected]> wrote:
> I am going to route compressed air from my compressor location to one
> or two other positions in my shop. =A0I am looking at about 50 or more
> feet of plumbing. =A0 I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. =A0I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
> Thanks
>
> RonB
PVC is not an appropriate material for compressed air piping.
It can be subject to brittle / explosive failure.
http://www.osha.gov/dts/hib/hib_data/hib19880520.html
cheers
Bob
Ed Pawlowski wrote:
> On 22 May 2012 04:11:42 GMT, Puckdropper
> <puckdropper(at)yahoo(dot)com> wrote:
>
>
>>
>> I'm curious... Would covering the PVC with a plastic-like coating
>> (like THHN/THWN wire) sufficiently reduce the risk of using PVC with
>> compressed air? I guess the trick would become making sure the
>> coating binds properly to the PVC and adheres properly with the PVC
>> glue.
>>
>
>
> Probably, it would eliminate shrapnel.
I'm guessing here, but I'd guess it would not. That's not a very thick
covering - I'd think it might not protect at all.
--
-Mike-
[email protected]
On May 18, 4:14=A0pm, Steve Barker <[email protected]> wrote:
> On 5/18/2012 1:34 AM, DD_BobK wrote:
>
>
>
>
>
>
>
>
>
> > On May 17, 8:12 pm, Steve Barker<[email protected]> =A0wrote:
> >> On 5/17/2012 11:07 AM, RonB wrote:
>
> >>> I am going to route compressed air from my compressor location to one
> >>> or two other positions in my shop. =A0I am looking at about 50 or mor=
e
> >>> feet of plumbing. =A0 I Googled some information regarding PVC, and
> >>> while it is economical, I still am not comfortable. =A0I have come do=
wn
> >>> to using standard 1/2" black gas pipe and fittings.
>
> >>> Any other ideas, drawbacks, etc.
>
> >>> Thanks
>
> >>> RonB
>
> >> everyone will poo poo the pvc idea, but i've had it in my shop for
> >> decades. =A0 Sweat copper works well also. =A0I personally wouldn't sc=
rew
> >> (no pun intended) with the black iron. =A0It'll rust inside and be a m=
ess
> >> in the filters and separators.
>
> >> --
> >> Steve Barker
> >> remove the "not" from my address to email
>
> > Steve-
>
> > Just because you have used PVC for compressed air for decades and have
> > not suffered a failure does not counter the scientific evidence that
> > PVC is not an appropriate material for delivery of compressed air.
> >http://www.lni.wa.gov/Safety/Basics/HazAlerts/902.asp
>
> > The fact that your PVC has not failed or caused injury is merely
> > anecdotal.
>
> > cheers
> > Bob
>
> i noticed that is a governmental link. =A0Is this the same government tha=
t
> has allowed 0bummer to drive us into socialism? =A0Osha and government
> opinions are of no consequence to me.
>
> --
> Steve Barker
> remove the "not" from my address to email
Steve-
Sometimes you make useful contributions to news group discussions,
sometimes your ignorance knows no bounds.
This current discussion falls in the later category.
Check the date on the osha letters.
Hmmmm looks like Reagan or Bush was president.
Further, if you read the notice from the private company
PLASTICS PIPE INSTITUTE
355 LEXINGTON AVENUE, NEW YORK, N.Y.10017
212-370-7341
RECOMMENDATION B
THERMOPLASTIC PIPING
FOR THE TRANSPORT OF COMPRESSED AIR
OR OTHER COMPRESSED GASES
Adopted January 19, 1972
The Plastics Pipe Institute recommends against the use of
thermoplastic pipe to transport compressed air or other compressed
gases or the testing of such piping with compressed air or other
compressed gases in exposed above ground locations, e.g. in exposed
plant piping. It is recommended that all thermoplastic piping used to
transport compressed air or other compressed gases be buried
underground or encased in shatter-resistant materials. In designing
thermoplastic piping to transport compressed air or other compressed
gases, the strength at the operating temperature, the pressure, the
energetics, and specific failure mechanism need to be evaluated.
Colonial Engineering Inc.
Thermoplastic Piping Systems
So govt & OSHA directives hold no sway with you........looks like it
started as a non-government initiative.
I guess next you'll be arguing against changes / updates to seismic
design code because they're based on "pencil pusher" research &
analysis?
cheers
Bob
Yup, fine example of the pot calling....
--
"Jim Weisgram" wrote in message
news:[email protected]...
On Fri, 18 May 2012 20:14:30 -0400, Dave <[email protected]> wrote:
>On Fri, 18 May 2012 18:16:25 -0500, Steve Barker
>>lines i pulled out of my 140 year old house were galvanized. They
>>say
>>don't do that either. Hmmmmm.... real world, or pencil pusher???
>
>Hmmmmm.... real world or a*hole. You are so full of yourself aren't
>you? It's a real education watching you make a fool of yourself with
>most every message.
Plonk #2. Into the black hole with you.
On May 19, 12:05=A0pm, Marty <[email protected]> wrote:
> Hmmm seems as though most everyone is assuming Sch 40 PCV pipe
> not the hose sold specifically for air distribution.
> Seems like black pipe, while adaptable for the task is
> very difficult to work with and VERY difficult to easily
> add additional ports in the future.
I am not going to use PVC. Black pipe was was pretty much my going-in
position when I started thinking about it and when I posted this. I
am not ruling out pipe but as I Googled around I found some
interesting approaches using regular air hose and shop made copper
terminations. This is one of them --
http://americanwoodworker.com/blogs/shop/archive/2009/09/15/plumb-your-shop=
-with-air.aspx
No decision yet, but this has appeal. My shop is a 1,024 sf garage
that shares space with cars, but adequate. I use a french-cleat wall
rail system that allows me to move cabinets and racks pretty easily if
I want to change configuration of certain areas. The hose approach
seem flexible because you can change routing and add service points
fairly easily. Fabricating the individual copper service points might
be a little fiddly, but when made they can be used in different places
if I switch stuff around. Pipe - not so easy.
No decision yet but I'm kinda liking the hose system.
Ron
On Fri, 18 May 2012 18:16:25 -0500, Steve Barker
>lines i pulled out of my 140 year old house were galvanized. They say
>don't do that either. Hmmmmm.... real world, or pencil pusher???
Hmmmmm.... real world or a*hole. You are so full of yourself aren't
you? It's a real education watching you make a fool of yourself with
most every message.
On 5/18/2012 5:04 AM, Ed Pawlowski wrote:
> On Thu, 17 May 2012 22:12:31 -0500, Steve Barker
> <[email protected]> wrote:
>
>
>
>>
>> everyone will poo poo the pvc idea, but i've had it in my shop for
>> decades.
>
> Good for you, but I'd never take the chance. In industry, it is an
> OSHA violation. It has been proven to fail.
>
>
>
yeah well, they say (now) not to use soft copper for NG lines and
hookups. But that's all we had for almost a century. Also, ALL the NG
lines i pulled out of my 140 year old house were galvanized. They say
don't do that either. Hmmmmm.... real world, or pencil pusher???
--
Steve Barker
remove the "not" from my address to email
On 5/18/2012 1:34 AM, DD_BobK wrote:
> On May 17, 8:12 pm, Steve Barker<[email protected]> wrote:
>> On 5/17/2012 11:07 AM, RonB wrote:
>>
>>> I am going to route compressed air from my compressor location to one
>>> or two other positions in my shop. I am looking at about 50 or more
>>> feet of plumbing. I Googled some information regarding PVC, and
>>> while it is economical, I still am not comfortable. I have come down
>>> to using standard 1/2" black gas pipe and fittings.
>>
>>> Any other ideas, drawbacks, etc.
>>
>>> Thanks
>>
>>> RonB
>>
>> everyone will poo poo the pvc idea, but i've had it in my shop for
>> decades. Sweat copper works well also. I personally wouldn't screw
>> (no pun intended) with the black iron. It'll rust inside and be a mess
>> in the filters and separators.
>>
>> --
>> Steve Barker
>> remove the "not" from my address to email
>
> Steve-
>
> Just because you have used PVC for compressed air for decades and have
> not suffered a failure does not counter the scientific evidence that
> PVC is not an appropriate material for delivery of compressed air.
> http://www.lni.wa.gov/Safety/Basics/HazAlerts/902.asp
>
> The fact that your PVC has not failed or caused injury is merely
> anecdotal.
>
> cheers
> Bob
>
i noticed that is a governmental link. Is this the same government that
has allowed 0bummer to drive us into socialism? Osha and government
opinions are of no consequence to me.
--
Steve Barker
remove the "not" from my address to email
On 5/18/2012 3:23 PM, [email protected] wrote:
> On Thu, 17 May 2012 20:40:48 -0700, Pilgrim<[email protected]>
> wrote:
>
>> In article<[email protected]>,
>> Markem<[email protected]> wrote:
>>
>>> On Thu, 17 May 2012 12:47:52 -0400, "Mike Marlow"
>>> <[email protected]> wrote:
>>>
>>>> RonB wrote:
>>>>> I am going to route compressed air from my compressor location to one
>>>>> or two other positions in my shop. I am looking at about 50 or more
>>>>> feet of plumbing. I Googled some information regarding PVC, and
>>>>> while it is economical, I still am not comfortable. I have come down
>>>>> to using standard 1/2" black gas pipe and fittings.
>>>>>
>>>>> Any other ideas, drawbacks, etc.
>>>>>
>>>>
>>>> Easy Ron - stay away from PVC. Unless of course, it is grounded (NO - that
>>>> was a joke...). Use either black pipe or copper. Copper is better, but for
>>>> most uses, black pipe is just fine. Just be sure to put down drops and
>>>> drains below every attachment point in the lines. For a 50' run or two, the
>>>> cost is not going to be so great as to even worry about the economy of PVC.
>>>> So - do not get comfortable with that idea.
>>>
>>> Worked in a plant where the air lines were PVC they went BANG about
>>> once a year. Not nice for your ears if it was near you. Non static
>>> loads of being pressurized and depressurized weakens the PVC joints.
>>>
>>> Mark
>>
>> This periodically gets beat to death on rec.crafts.metalwoking. Search
>> their archives. The general consensus is that PVC is not a good idea
>> because of the shrapnel when a PVC line goes boom.
>>
>> CP
> And it is WHEN, not IF.
how long does it take? the shop i retired from was built in '74 or so
and was still doing fine when i left in '06. (160 psi kick off pressure)
Also, my own garage has had pvc air plumbing for almost the same
length of time. Only 130 psi at home.
--
Steve Barker
remove the "not" from my address to email
On Thu, 17 May 2012 20:40:48 -0700, Pilgrim <[email protected]>
wrote:
>In article <[email protected]>,
> Markem <[email protected]> wrote:
>
>> On Thu, 17 May 2012 12:47:52 -0400, "Mike Marlow"
>> <[email protected]> wrote:
>>
>> >RonB wrote:
>> >> I am going to route compressed air from my compressor location to one
>> >> or two other positions in my shop. I am looking at about 50 or more
>> >> feet of plumbing. I Googled some information regarding PVC, and
>> >> while it is economical, I still am not comfortable. I have come down
>> >> to using standard 1/2" black gas pipe and fittings.
>> >>
>> >> Any other ideas, drawbacks, etc.
>> >>
>> >
>> >Easy Ron - stay away from PVC. Unless of course, it is grounded (NO - that
>> >was a joke...). Use either black pipe or copper. Copper is better, but for
>> >most uses, black pipe is just fine. Just be sure to put down drops and
>> >drains below every attachment point in the lines. For a 50' run or two, the
>> >cost is not going to be so great as to even worry about the economy of PVC.
>> >So - do not get comfortable with that idea.
>>
>> Worked in a plant where the air lines were PVC they went BANG about
>> once a year. Not nice for your ears if it was near you. Non static
>> loads of being pressurized and depressurized weakens the PVC joints.
>>
>> Mark
>
>This periodically gets beat to death on rec.crafts.metalwoking. Search
>their archives. The general consensus is that PVC is not a good idea
>because of the shrapnel when a PVC line goes boom.
>
>CP
And it is WHEN, not IF.
Overkill.
Use air hose for the drops too.
very flexible, There is really no need for copper, or black pipe.
But hey it's your money, and your time.
On 5/19/2012 4:06 PM, RonB wrote:
> On May 19, 12:05 pm, Marty<[email protected]> wrote:
>> Hmmm seems as though most everyone is assuming Sch 40 PCV pipe
>> not the hose sold specifically for air distribution.
>> Seems like black pipe, while adaptable for the task is
>> very difficult to work with and VERY difficult to easily
>> add additional ports in the future.
>
> I am not going to use PVC. Black pipe was was pretty much my going-in
> position when I started thinking about it and when I posted this. I
> am not ruling out pipe but as I Googled around I found some
> interesting approaches using regular air hose and shop made copper
> terminations. This is one of them --
> http://americanwoodworker.com/blogs/shop/archive/2009/09/15/plumb-your-shop-with-air.aspx
>
> No decision yet, but this has appeal. My shop is a 1,024 sf garage
> that shares space with cars, but adequate. I use a french-cleat wall
> rail system that allows me to move cabinets and racks pretty easily if
> I want to change configuration of certain areas. The hose approach
> seem flexible because you can change routing and add service points
> fairly easily. Fabricating the individual copper service points might
> be a little fiddly, but when made they can be used in different places
> if I switch stuff around. Pipe - not so easy.
>
> No decision yet but I'm kinda liking the hose system.
>
> Ron
>
>
>
In article <[email protected]>,
Steve Barker <[email protected]> wrote:
<<< ...other stuff snipped... >>>
>>> This periodically gets beat to death on rec.crafts.metalwoking. Search
>>> their archives. The general consensus is that PVC is not a good idea
>>> because of the shrapnel when a PVC line goes boom.
<<... snipped... >>
>
>how long does it take? the shop i retired from was built in '74 or so
>and was still doing fine when i left in '06. (160 psi kick off pressure)
> Also, my own garage has had pvc air plumbing for almost the same
>length of time. Only 130 psi at home.
>
Look here: http://www.osha.gov/dts/hib/hib_data/hib19880520.html
Warnings from OSHA and some state agencies, including an incident where
an employee suffered a broken nose and facial cuts. Even if you are
willing to take the risk, in a commercial setting it will be an OSHA
violation with potential fine if there is an OSHA inspection.
--
When the game is over, the pawn and the king are returned to the same box.
Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar.org
In article <[email protected]>,
Steve Barker <[email protected]> wrote:
<... snipped ...>
>yeah well, they say (now) not to use soft copper for NG lines and
>hookups. But that's all we had for almost a century. Also, ALL the NG
>lines i pulled out of my 140 year old house were galvanized. They say
>don't do that either. Hmmmmm.... real world, or pencil pusher???
So if you drive drunk 50 times without an accident, then ...
Use a grinder without eye protection for years without getting something
in your eye...
Stood in a puddle once when using 120V power tools and nothing happened...
But don't worry about that, I'm sure those NG anecdotes prove that
your PVC air plumbing will be safe.
--
When the game is over, the pawn and the king are returned to the same box.
Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar.org
Hmmm seems as though most everyone is assuming Sch 40 PCV pipe
not the hose sold specifically for air distribution.
Seems like black pipe, while adaptable for the task is
very difficult to work with and VERY difficult to easily
add additional ports in the future.
I don't think the PVC specifically for air distribution will
shatter and explode, just rupture at the weak point. Otherwise
the hose reels for air distribution (like I have in my shop) would
not be practicable.
IMHO
Marty
On 5/17/2012 12:07 PM, RonB wrote:
> I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
> Thanks
>
> RonB
--
Thanks<br>
<br>
Marty Kovacs<br>
Vermont State Technical Coordinator<br>
[email protected]<br>
802-224-9040<br>
Unfortunate but, some pride themselves with destroying groups and
Usenet by infiltrating the group and constantly raising the grain of
the types with the 20 grit personalities. Sometimes this takes a few
sockpuppets and that is done on a professional calibre. I have seen
too many groups bite the dust this way. This group has surprisingly
survived a tonne of this BS.
One has to wonder that some editorialize so well, with so much time
spent here, actually do any woodworking, at all.
--------
"RonB" wrote in message
news:[email protected]...
Yeah and a few days ago I posted an OT concern about the increasing
number of labeled and unlabeled off topic posts (including troll
materiel); and as expected got criticized. But the fact is, I have
been hanging out and contributing to this group for 10-15 years and
had it has been a good experience. But the increasing number of off
topic material (excluding spam) that appears to be coming for
subscribers is increasing rapidly. If it continues rec.woodworking
will become a useless wasteland just like one of our RV groups and
others. The increasing amount of venomous name calling also directly
follows the path that (
http://groups.google.com/group/rec.outdoors.rv-travel/topics?lnk=srg
) took. When I looked at rec.outdoors,rv. travel at the time of this
post there were 28 items on the subject list and one was on topic.
There is also a very large amount of fighting, name calling and
profanity on that site.
What this group needs to understand is that many, maybe most, of us
are woodworkers who spend time working in the shop, spending time with
families, etc. We do not spend large amounts of time sitting in front
of the keyboard plotting filtering strategies to protect us from the
crap that shows up in these groups. When using a group becomes too
difficult we just quit using it.
You won't miss me but as other folks fade away, as they have with
other groups, you will miss the knowledge and resources these people
provide.
RonB
On Sat, 19 May 2012 13:05:21 -0400, Marty <[email protected]>
wrote:
>Hmmm seems as though most everyone is assuming Sch 40 PCV pipe
>not the hose sold specifically for air distribution.
Correct. It is made for liquid, not compressed gas.
>Seems like black pipe, while adaptable for the task is
>very difficult to work with and VERY difficult to easily
>add additional ports in the future.
Yes, unless you have threading equipment available.
>
>I don't think the PVC specifically for air distribution will
>shatter and explode, just rupture at the weak point. Otherwise
>the hose reels for air distribution (like I have in my shop) would
>not be practicable.
Yes, it is a different material and is used extensively. We have
thousands of feet of that type in our shop, but you'll never find an
inch of PVC water tubing.
On Fri, 18 May 2012 20:09:47 -0400, Dave <[email protected]> wrote:
>On Fri, 18 May 2012 18:12:46 -0500, Steve Barker
>>> And it is WHEN, not IF.
>>
>>how long does it take? the shop i retired from was built in '74 or so
>>and was still doing fine when i left in '06. (160 psi kick off pressure)
>> Also, my own garage has had pvc air plumbing for almost the same
>>length of time. Only 130 psi at home.
>
>You really are an obnoxious snot aren't you?
He can do the world a favor and keep doing stupid stuff like that.
One of these times something will finally get him???
In article <[email protected]>,
Markem <[email protected]> wrote:
> On Thu, 17 May 2012 12:47:52 -0400, "Mike Marlow"
> <[email protected]> wrote:
>
> >RonB wrote:
> >> I am going to route compressed air from my compressor location to one
> >> or two other positions in my shop. I am looking at about 50 or more
> >> feet of plumbing. I Googled some information regarding PVC, and
> >> while it is economical, I still am not comfortable. I have come down
> >> to using standard 1/2" black gas pipe and fittings.
> >>
> >> Any other ideas, drawbacks, etc.
> >>
> >
> >Easy Ron - stay away from PVC. Unless of course, it is grounded (NO - that
> >was a joke...). Use either black pipe or copper. Copper is better, but for
> >most uses, black pipe is just fine. Just be sure to put down drops and
> >drains below every attachment point in the lines. For a 50' run or two, the
> >cost is not going to be so great as to even worry about the economy of PVC.
> >So - do not get comfortable with that idea.
>
> Worked in a plant where the air lines were PVC they went BANG about
> once a year. Not nice for your ears if it was near you. Non static
> loads of being pressurized and depressurized weakens the PVC joints.
>
> Mark
This periodically gets beat to death on rec.crafts.metalwoking. Search
their archives. The general consensus is that PVC is not a good idea
because of the shrapnel when a PVC line goes boom.
CP
On 22 May 2012 04:11:42 GMT, Puckdropper
<puckdropper(at)yahoo(dot)com> wrote:
>
>I'm curious... Would covering the PVC with a plastic-like coating (like
>THHN/THWN wire) sufficiently reduce the risk of using PVC with compressed
>air? I guess the trick would become making sure the coating binds properly
>to the PVC and adheres properly with the PVC glue.
>
Probably, it would eliminate shrapnel.
On Fri, 18 May 2012 20:09:47 -0400, Dave <[email protected]> wrote:
>On Fri, 18 May 2012 18:12:46 -0500, Steve Barker
>>> And it is WHEN, not IF.
>>
>>how long does it take? the shop i retired from was built in '74 or so
>>and was still doing fine when i left in '06. (160 psi kick off pressure)
>> Also, my own garage has had pvc air plumbing for almost the same
>>length of time. Only 130 psi at home.
>
>You really are an obnoxious snot aren't you?
Plonk #1
On Fri, 18 May 2012 20:14:30 -0400, Dave <[email protected]> wrote:
>On Fri, 18 May 2012 18:16:25 -0500, Steve Barker
>>lines i pulled out of my 140 year old house were galvanized. They say
>>don't do that either. Hmmmmm.... real world, or pencil pusher???
>
>Hmmmmm.... real world or a*hole. You are so full of yourself aren't
>you? It's a real education watching you make a fool of yourself with
>most every message.
Plonk #2. Into the black hole with you.
On Thu, 17 May 2012 12:47:52 -0400, "Mike Marlow"
<[email protected]> wrote:
>RonB wrote:
>> I am going to route compressed air from my compressor location to one
>> or two other positions in my shop. I am looking at about 50 or more
>> feet of plumbing. I Googled some information regarding PVC, and
>> while it is economical, I still am not comfortable. I have come down
>> to using standard 1/2" black gas pipe and fittings.
>>
>> Any other ideas, drawbacks, etc.
>>
>
>Easy Ron - stay away from PVC. Unless of course, it is grounded (NO - that
>was a joke...). Use either black pipe or copper. Copper is better, but for
>most uses, black pipe is just fine. Just be sure to put down drops and
>drains below every attachment point in the lines. For a 50' run or two, the
>cost is not going to be so great as to even worry about the economy of PVC.
>So - do not get comfortable with that idea.
Worked in a plant where the air lines were PVC they went BANG about
once a year. Not nice for your ears if it was near you. Non static
loads of being pressurized and depressurized weakens the PVC joints.
Mark
I went cheap. I bought 100' from Harbor Freight of 3/8 line. Its stiff,
but I live in a ranch and wanted some drops in the shop and all the way
out to the garage. I used up all the hose in a run. I picked up some
tees and 3/8 barbs and made drops with tees offering a connection point
and drain valve. It is great. The hose did have to be returned because
it just was not well made, the second hose has done well.
$19 for the hose on sale, and probably 20 in Ts, ball valves and quick
connects. A lot better than moving my compressor from the basement to
the garage over and over, or running a hose up the stairs and letting
all the bugs in.
Plus it's easy enough to add drops by cutting the main line and sticking
a new T in.
If you are worried about 3/8, get the 1/2 line, there's some Goodyear
line both rubber and plyovac (sp??)
On 5/17/2012 12:07 PM, RonB wrote:
> I am going to route compressed air from my compressor location to one
> or two other positions in my shop. I am looking at about 50 or more
> feet of plumbing. I Googled some information regarding PVC, and
> while it is economical, I still am not comfortable. I have come down
> to using standard 1/2" black gas pipe and fittings.
>
> Any other ideas, drawbacks, etc.
>
> Thanks
>
> RonB