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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Posted to rec.crafts.metalworking
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Due to having no money and abundance of devil-may-care, I am thinking
of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe |
#2
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Just use rubber hoses, what's the problem.
i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe |
#3
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![]() Cost, Iggy. On Tue, 22 Nov 2011 20:53:25 -0600, Ignoramus8003 wrote: Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe |
#4
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On 2011-11-23, justme wrote:
Cost, Iggy. Cost of rubber hoses? You gotta be kidding me, they are very cheap. i On Tue, 22 Nov 2011 20:53:25 -0600, Ignoramus8003 wrote: Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe |
#5
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![]() "Ignoramus8003" wrote in message ... On 2011-11-23, justme wrote: Cost, Iggy. Cost of rubber hoses? You gotta be kidding me, they are very cheap. i I buy rubber hoses at yard sales. I just bought a 50 footer with fittings for $3. Still was tied with those little plastic ribbons. Made in USA rubber hose. If I was to do a system, I'd do it in copper, or rubber, as you suggest. OP seems set on doing it in PVC, and has an agenda to disprove others. I'd advise to just build it, and go for it, and see what happens. What's the worst that could happen? Blindness? Steve |
#6
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On 2011-11-23, Steve B wrote:
"Ignoramus8003" wrote in message ... On 2011-11-23, justme wrote: Cost, Iggy. Cost of rubber hoses? You gotta be kidding me, they are very cheap. i I buy rubber hoses at yard sales. I just bought a 50 footer with fittings for $3. Still was tied with those little plastic ribbons. Made in USA rubber hose. I usually get it for free, as in, "and please take this crap also". If I was to do a system, I'd do it in copper, or rubber, as you suggest. OP seems set on doing it in PVC, and has an agenda to disprove others. I'd advise to just build it, and go for it, and see what happens. What's the worst that could happen? Blindness? The PVC pieces might destroy his balls. Really, PVC hose is safe, cheap, easy to work with, no problems. i |
#7
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On Tue, 22 Nov 2011 20:33:23 -0800, "Steve B"
wrote: "Ignoramus8003" wrote in message m... On 2011-11-23, justme wrote: Cost, Iggy. Cost of rubber hoses? You gotta be kidding me, they are very cheap. i I buy rubber hoses at yard sales. I just bought a 50 footer with fittings for $3. Still was tied with those little plastic ribbons. Made in USA rubber hose. I got 154 feet of 1/4" vinyl for $3 , but they wouldn't throw in the dirty, greasy wooden box they had stored it in. (I was wondering how I could dispose of the box! It cost me about $10 to rig it up on a hose reel meant for garden hose. If I was to do a system, I'd do it in copper, or rubber, as you suggest. OP seems set on doing it in PVC, and has an agenda to disprove others. I'd advise to just build it, and go for it, and see what happens. What's the worst that could happen? Blindness? Steve Gerry :-)} London, Canada |
#8
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On Tue, 22 Nov 2011 20:33:23 -0800, "Steve B" wrote:
"Ignoramus8003" wrote in message m... On 2011-11-23, justme wrote: Cost, Iggy. Cost of rubber hoses? You gotta be kidding me, they are very cheap. i I buy rubber hoses at yard sales. I just bought a 50 footer with fittings for $3. Still was tied with those little plastic ribbons. Made in USA rubber hose. If I was to do a system, I'd do it in copper, or rubber, as you suggest. OP seems set on doing it in PVC, and has an agenda to disprove others. I'd advise to just build it, and go for it, and see what happens. What's the worst that could happen? Blindness? Steve Ive got a ****LOAD of rubber hoses..and a matching ****load of 3/4" ID hose thats rated at 300PSI. Goodyear hose as a matter of fact. Most of it is in lengths of 50'. A bit sun faded on one side, its all sitting in one of my pallet boxes out back. Anybody coming by the Bakersfield area can come by and pick through my Stuff. Gunner One could not be a successful Leftwinger without realizing that, in contrast to the popular conception supported by newspapers and mothers of Leftwingers, a goodly number of Leftwingers are not only narrow-minded and dull, but also just stupid. Gunner Asch |
#9
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On Tue, 22 Nov 2011 20:53:25 -0600, Ignoramus8003
wrote: Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I like the mesh reinforced vinyl tubing myself Gerry :-)} London, Canada |
#10
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On 2011-11-23, Gerald Miller wrote:
On Tue, 22 Nov 2011 20:53:25 -0600, Ignoramus8003 wrote: Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I like the mesh reinforced vinyl tubing myself Gerry :-)} London, Canada Easy and safe and cheap. i |
#11
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![]() "Ignoramus8003" wrote in message ... On 2011-11-23, Gerald Miller wrote: On Tue, 22 Nov 2011 20:53:25 -0600, Ignoramus8003 wrote: Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I like the mesh reinforced vinyl tubing myself Gerry :-)} London, Canada Easy and safe and cheap. i Or the polypropylene or whatever it is black reticulation pipe - the heavier stuff used commercially or on farms. |
#12
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On Tue, 22 Nov 2011 22:51:47 -0500, Gerald Miller
wrote: On Tue, 22 Nov 2011 20:53:25 -0600, Ignoramus8003 wrote: Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I like the mesh reinforced vinyl tubing myself Gerry :-)} London, Canada I do too, until its exposed to oil for a few years and becomes mesh reinforced solid pipe. One could not be a successful Leftwinger without realizing that, in contrast to the popular conception supported by newspapers and mothers of Leftwingers, a goodly number of Leftwingers are not only narrow-minded and dull, but also just stupid. Gunner Asch |
#13
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On Thu, 24 Nov 2011 01:41:21 -0800, Gunner Asch
wrote: On Tue, 22 Nov 2011 22:51:47 -0500, Gerald Miller wrote: On Tue, 22 Nov 2011 20:53:25 -0600, Ignoramus8003 wrote: Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I like the mesh reinforced vinyl tubing myself Gerry :-)} London, Canada I do too, until its exposed to oil for a few years and becomes mesh reinforced solid pipe. I haven't run into that yet, but I am a newby to compressed air, only had a compressor for about 4 years and just learning what I've been missing, dammit! Gerry :-)} London, Canada |
#14
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I'm not properly set up. But, the fellows who are, seem to
really get a lot of good use out of thier air tools. Must be a reason the pro repair garages use them. -- Christopher A. Young Learn more about Jesus www.lds.org .. "Gerald Miller" wrote in message ... I haven't run into that yet, but I am a newby to compressed air, only had a compressor for about 4 years and just learning what I've been missing, dammit! Gerry :-)} London, Canada |
#15
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![]() "Gerald Miller" wrote in message ... On Thu, 24 Nov 2011 01:41:21 -0800, Gunner Asch wrote: On Tue, 22 Nov 2011 22:51:47 -0500, Gerald Miller wrote: On Tue, 22 Nov 2011 20:53:25 -0600, Ignoramus8003 wrote: ... I like the mesh reinforced vinyl tubing myself Gerry :-)} London, Canada I do too, until its exposed to oil for a few years and becomes mesh reinforced solid pipe. I haven't run into that yet, but I am a newby to compressed air, only had a compressor for about 4 years and just learning what I've been missing, dammit! Gerry :-)} London, Canada The Parker Store clerk sold me some reinforced clear tubing for the return line on my hydraulic loader. Six years later it's still flexible. https://picasaweb.google.com/KB1DAL/...17038161999810 It may have been real Tygon which doesn't need soluble plasticizers to remain flexible. http://www.tygon.com/tygon-tubing.aspx jsw |
#16
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On Nov 22, 8:53*pm, Ignoramus8003
wrote: Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. *I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: *DON'T DO IT, YOU WILL BE KILLED. *To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe- Hide quoted text - - Show quoted text - I agree...if money is tight just use hoses. I have seen "temp setups" with hoses that are over 20 years old. If you need high volume, go iron pipe. TMT |
#17
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![]() "Ignoramus8003" wrote in message ... Just use rubber hoses, what's the problem. i On 2011-11-23, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe If you use polyethelyne pipe, it not fail in a brittle manner. It may eventually burst, but all it will dammage is your composure. It will not scatter shrapnel around. |
#18
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On 11/22/2011 6:49 PM, justme wrote:
Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I have had PVC air line in my business for 12 years. Runs 125 psi all day, 5 days a week. We have never had a break. Scared me to death, but my late partner had it installed before I was part of the company. Almost all the pipes lower than 20 ft are steel, however, and all I have put in are steel. The more immediate and lasting problem is sag in the horizontal PVC distribution lines. Moisture collects there until there is a big release of air further down the line and then liquid comes out the end. The PVC could not be placed so there was a continuous slope downward. We have filters and a refrigerated air dryer in the line and that is a late addition. Most of the water vapor doesn't make it to the PVC, now. Paul |
#19
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Thanks, Paul.
I feel better. What size are the pipes? Joe On Tue, 22 Nov 2011 19:23:00 -0800, Paul Drahn wrote: On 11/22/2011 6:49 PM, justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I have had PVC air line in my business for 12 years. Runs 125 psi all day, 5 days a week. We have never had a break. Scared me to death, but my late partner had it installed before I was part of the company. Almost all the pipes lower than 20 ft are steel, however, and all I have put in are steel. The more immediate and lasting problem is sag in the horizontal PVC distribution lines. Moisture collects there until there is a big release of air further down the line and then liquid comes out the end. The PVC could not be placed so there was a continuous slope downward. We have filters and a refrigerated air dryer in the line and that is a late addition. Most of the water vapor doesn't make it to the PVC, now. Paul |
#20
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On 11/22/2011 7:39 PM, justme wrote:
Thanks, Paul. I feel better. What size are the pipes? Joe They are 1/2", Joe. Just wait 12 hours or so after gluing sections, before applying air pressure. Paul |
#21
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There's white PVC, and the slightly colored CPVC. I'm not
sure if one has higher pressure rating. How far do you have to go? And roughly how many fittings? I'd want to take a look at black iron. You might find the price difference isn't all that much. Might be worth it, for the peace of mind. Since you're buying both PVC and the wire mesh stuff. That, or air hose from Harbor Freight, which might not be all that much safer. One place I know, put in over head iron pipe. Neglected the drip legs, so their air power disk sanders spit water, in the summer. No good. -- Christopher A. Young Learn more about Jesus www.lds.org .. "justme" wrote in message ... Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe |
#22
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On Tue, 22 Nov 2011 23:17:43 -0500, "Stormin Mormon"
wrote: There's white PVC, and the slightly colored CPVC. I'm not sure if one has higher pressure rating. The Grey is Sched 80 as I recall. Its MUCh thicker wall than the white. One could not be a successful Leftwinger without realizing that, in contrast to the popular conception supported by newspapers and mothers of Leftwingers, a goodly number of Leftwingers are not only narrow-minded and dull, but also just stupid. Gunner Asch |
#23
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Gunner Asch writes:
There's white PVC, and the slightly colored CPVC. I'm not sure if one has higher pressure rating. The Grey is Sched 80 as I recall. Its MUCh thicker wall than the white. Much of the gray is DB-120; it's far weaker than even Sch 40. -- A host is a host from coast to & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433 |
#24
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On Nov 22, 8:49*pm, justme wrote:
Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. *I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: *DON'T DO IT, YOU WILL BE KILLED. *To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe FWIW...the danger in PVC is that the oil mist from the compressor WILL cause failure in the PVC. Also if you are unlucky enough to crack the PVC physically by bumping it hard while it is under pressure, it will explode with fragments flying everywhere. And if this is a business setting, the code inspectors will make you rip it out and your insurance company will pull your insurance. TMT |
#25
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On Tue, 22 Nov 2011 20:49:48 -0600, justme wrote:
Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? If you can afford PVC Pipe and fittings, you can afford cheap imported Black Iron (really steel) pipe - they sell a lot of it for natural gas lines. Take the time to do it right, or don't bother and get lots of hoses. They have the plastic coated rust resistant stuff too if you need to bury an air feed between the garage and house - coat the fitting with sealant, then wrap the fittings in the special tape and slather another coat of sealant over the tape to keep the water out. Do Not use Galvanized pipe, the zinc flakes off and gets into the tools and valves. And your 'Wrap chicken wire around the PVC " plan is doomed for failure - there is a LOT of captive energy there... Run the riser up to the rafters from the compressor and refrigerated dryer or aftercooler, then when it changes to horizontal to head off into the shop leave a slight downhill - maybe 1/4" per 10' to the far end of the room - where you put an elbow and a drain leg down to a drain valve you can reach. Drain it every few weeks - you'll be shocked how much water coalesces out in the lines. Do NOT buy lots of couplings - buy mostly Tees and Plugs, and put a tee every length of pipe with the third hole POINTED UP to the roof - when you realize you need a new drop there, you just pull the threaded pipe plug out of the tee and go. If you plan to wait 20 years and then add a new drop by cutting the Black pipe and threading it for a new tee, FUHGEDDABOUDIT. You'll either snap off an old fitting, or twist the old connections and create a dozen leaks... And eventually between the hissing leaks and compressor cycling every fifteen minutes it will drive you mad, and you have to take The Whole Damn System Apart and start over. The tap legs go UP from the main line for a few inches so if there is any moisture in the air you leave it trapped in the main line - and eventually it'll work it's way to that drain leg at the far end. Then you go horizontal over to the wall, and drop down to your drop fittings. Oh, and put another tee there with another butterfly drain valve on the drip-leg, so if any water gets that far it's stopped again. Water in your air is bad news. If you have the money you use Copper pipe - but you build it the exact same way with the drip legs everywhere, and up-legs to leave the water behind. Except you can skip the tees, it's easy enough to cut in one and solder or braze the tap tee as needed. (No threading in place.) I use Silver Braze on Copper for Air (or refrigerant) - that way your Plumber doesn't think it's a Water line he can tap into. Which can get exciting. -- Bruce -- |
#26
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I wondered about the Ts pointing up, but it made sense
later. Don't want water to rust and corrode the threads for the plugs. When I did a bit of pipe fitting, my old boss used to use teflon tape, plus yellow Rectorseal #5 on the exterior / male threads. That combination seemed to do good. A union or two in the system makes it easier to take apart. In theory, the unions mating surface doesn't need Rectorseal, but the threads to the black iron do need teflon and rectorseal. I'd think it would make sense to spray paint the air pipe, so it's different color than the other utilities. Water is blue, natural gas is yellow. Fire protection is red. So, what's that leave? -- Christopher A. Young Learn more about Jesus www.lds.org .. "Bruce L. Bergman (munged human readable)" wrote in message ... If you can afford PVC Pipe and fittings, you can afford cheap imported Black Iron (really steel) pipe - they sell a lot of it for natural gas lines. Take the time to do it right, or don't bother and get lots of hoses. They have the plastic coated rust resistant stuff too if you need to bury an air feed between the garage and house - coat the fitting with sealant, then wrap the fittings in the special tape and slather another coat of sealant over the tape to keep the water out. Do Not use Galvanized pipe, the zinc flakes off and gets into the tools and valves. And your 'Wrap chicken wire around the PVC " plan is doomed for failure - there is a LOT of captive energy there... Run the riser up to the rafters from the compressor and refrigerated dryer or aftercooler, then when it changes to horizontal to head off into the shop leave a slight downhill - maybe 1/4" per 10' to the far end of the room - where you put an elbow and a drain leg down to a drain valve you can reach. Drain it every few weeks - you'll be shocked how much water coalesces out in the lines. Do NOT buy lots of couplings - buy mostly Tees and Plugs, and put a tee every length of pipe with the third hole POINTED UP to the roof - when you realize you need a new drop there, you just pull the threaded pipe plug out of the tee and go. If you plan to wait 20 years and then add a new drop by cutting the Black pipe and threading it for a new tee, FUHGEDDABOUDIT. You'll either snap off an old fitting, or twist the old connections and create a dozen leaks... And eventually between the hissing leaks and compressor cycling every fifteen minutes it will drive you mad, and you have to take The Whole Damn System Apart and start over. The tap legs go UP from the main line for a few inches so if there is any moisture in the air you leave it trapped in the main line - and eventually it'll work it's way to that drain leg at the far end. Then you go horizontal over to the wall, and drop down to your drop fittings. Oh, and put another tee there with another butterfly drain valve on the drip-leg, so if any water gets that far it's stopped again. Water in your air is bad news. If you have the money you use Copper pipe - but you build it the exact same way with the drip legs everywhere, and up-legs to leave the water behind. Except you can skip the tees, it's easy enough to cut in one and solder or braze the tap tee as needed. (No threading in place.) I use Silver Braze on Copper for Air (or refrigerant) - that way your Plumber doesn't think it's a Water line he can tap into. Which can get exciting. -- Bruce -- |
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On Wed, 23 Nov 2011 08:34:42 -0500, "Stormin Mormon"
wrote: I wondered about the Ts pointing up, but it made sense later. Don't want water to rust and corrode the threads for the plugs. When I did a bit of pipe fitting, my old boss used to use teflon tape, plus yellow Rectorseal #5 on the exterior / male threads. That combination seemed to do good. A union or two in the system makes it easier to take apart. In theory, the unions mating surface doesn't need Rectorseal, but the threads to the black iron do need teflon and rectorseal. I'd think it would make sense to spray paint the air pipe, so it's different color than the other utilities. Water is blue, natural gas is yellow. Fire protection is red. So, what's that leave? Black??? Gerry :-)} London, Canada |
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On Wed, 23 Nov 2011 19:58:21 -0500, Gerald Miller
wrote: On Wed, 23 Nov 2011 08:34:42 -0500, "Stormin Mormon" wrote: I wondered about the Ts pointing up, but it made sense later. Don't want water to rust and corrode the threads for the plugs. When I did a bit of pipe fitting, my old boss used to use teflon tape, plus yellow Rectorseal #5 on the exterior / male threads. That combination seemed to do good. A union or two in the system makes it easier to take apart. In theory, the unions mating surface doesn't need Rectorseal, but the threads to the black iron do need teflon and rectorseal. I'd think it would make sense to spray paint the air pipe, so it's different color than the other utilities. Water is blue, natural gas is yellow. Fire protection is red. So, what's that leave? Black??? Gerry :-)} London, Canada Green is still available - generally used for OXYGEN. |
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#31
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On Wed, 23 Nov 2011 08:34:42 -0500, "Stormin Mormon"
wrote: wondered about the Ts pointing up, but it made sense later. Don't want water to rust and corrode the threads for the plugs. Not that..you dont want transiant water to come down the pipe and spin the turbine in your air tools. Gunner One could not be a successful Leftwinger without realizing that, in contrast to the popular conception supported by newspapers and mothers of Leftwingers, a goodly number of Leftwingers are not only narrow-minded and dull, but also just stupid. Gunner Asch |
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On Nov 22, 4:49*pm, justme wrote:
Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. *I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: *DON'T DO IT, YOU WILL BE KILLED. *To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe How about PEX tubing? Karl |
#33
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justme wrote:
I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Every once and a while a bit of clorine in the gene pool is useful. Wes |
#34
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On Tue, 22 Nov 2011 20:49:48 -0600, justme wrote:
Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I'd rather see you use PEX. It's similar to the polyethylene tubing used for industrial controls, and the failure mode isn't nearly as nasty as PVC. And you still get the satisfaction of doing something that's not recommended. g Found in a google search for "pex compressed air: "I sent an email to a company that supplies PEX (pexconnection.com) here is what he said when I asked about using PEX for compressed air in a hobby woodworking shop " Air is routinely used for pressure testing PEX plumbing systems, and we use it here to distribute the air for our air compressor, so I would say that it should not be a problem for you to do that." Then I asked about exposure to fluorescent lights in my shop. And his reply was: "For best results, you will most likely need to cover it. PEX should not be exposed to direct UV light for more than 30 days. I will say, however, that the PEX we are using (for water and air) is exposed to direct fluorescent light and indirect sunlight and is performing well. Still, the recommendation is that it not be exposed to UV light." and... http://www.plumbingzone.com/f2/pex-c...air-line-6019/ -- Ned Simmons |
#35
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In article ,
justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I like the idea several have posted using PEX. There is also a PVC designed and rated for air http://www.aetnaplastics.com/product...roPipingSystem -- -------------------------------------------------------- Personal e-mail is the n7bsn but at amsat.org This posting address is a spam-trap and seldom read RV and Camping FAQ can be found at http://www.ralphandellen.us/rv |
#36
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"Ralph E Lindberg" wrote in message news:n7bsn-
I like the idea several have posted using PEX. There is also a PVC designed and rated for air http://www.aetnaplastics.com/product...roPipingSystem NorthernTool is selling a "RapidAir" air distribution set with 1/2" nylon lines and push-to-connect fittings for well below the "list" price... it actually looks like it's priced cheap for what you get; but a person could piece together their own set-up, too. http://www.northerntool.com/shop/too...7525_200367525 There must be a cheaper knock-off from HF also, according to RapidAir's website "Please be aware that Harbor Freight has copied the Rapidair system. This is not our product in their stores. We have had numerous phone calls about the poor quality of this system." http://www.rapidairproducts.com/rapidair.asp |
#37
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On Wed, 23 Nov 2011 10:35:00 -0600, "David Courtney"
wrote: "Ralph E Lindberg" wrote in message news:n7bsn- I like the idea several have posted using PEX. There is also a PVC designed and rated for air http://www.aetnaplastics.com/product...roPipingSystem NorthernTool is selling a "RapidAir" air distribution set with 1/2" nylon lines and push-to-connect fittings for well below the "list" price... it actually looks like it's priced cheap for what you get; but a person could piece together their own set-up, too. http://www.northerntool.com/shop/too...7525_200367525 There must be a cheaper knock-off from HF also, according to RapidAir's website "Please be aware that Harbor Freight has copied the Rapidair system. This is not our product in their stores. We have had numerous phone calls about the poor quality of this system." http://www.rapidairproducts.com/rapidair.asp PEX is their way of trademarking XLPE - Crosslinked Polyethylene, perhaps with a Nylon scuff layer on the outside. They are using it for the chassis air brake hoses on new heavy trucks, so they've got to be fairly confident in it's reliability... But that truck stuff is also colored different so it has a little UV resistance - I wouldn't just toss up plumbing grade PEX pipe. -- Bruce -- |
#39
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On Wed, 23 Nov 2011 22:25:21 -0500, "J. Clarke"
wrote: In article , says... In article , justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I like the idea several have posted using PEX. There is also a PVC designed and rated for air http://www.aetnaplastics.com/product...roPipingSystem And anybody who has never worked with PEX is in for a treat. Stuff is amazingly easy. Pex is easy to use. I recently had to add a faucet to my Wife's shop. All the plumbing is in the crawl space so it was easy to tap into the existing copper pipe using brass fittings that are made to be used with either Pex or copper pipe. The fittings atre removable using a horseshoe shaped tool that come 3 in a package for less than a buck. I left the tools on the Pex after the installation so they would be there when I need to add some more plumbing down the road. I have been thinking about using large diameter Pex for air in my shop. I don't know how big it comes though. I want at least 1 1/2 ID. Eric |
#40
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![]() wrote in message ... On Wed, 23 Nov 2011 22:25:21 -0500, "J. Clarke" wrote: In article , says... In article , justme wrote: Due to having no money and abundance of devil-may-care, I am thinking of using P.V.C. pipe to put in my shop for air supply. I am thinking of using 1/2 inch due the the highest pressure rating compared to larger sizes. Now, my thought is to buy some wire cloth - the stuff that has open squares of ~ .5 inch and cut it where, when formed into a tube, it would cover the p.v.c. pipe comfortably. Should the pipe explode due to the air pressure, the wire-cloth should stop large pieces from becoming killer pieces. I expect the nay sayers to say: DON'T DO IT, YOU WILL BE KILLED. To them I say: I don't expect to eliminate ALL CHANCES OF DEATH OR INJURY BUT I DO EXPECT THE SHIELDING TO CALM MY FEARS RATHER THAN USING BARE PIPE. What say? Thanks Joe I like the idea several have posted using PEX. There is also a PVC designed and rated for air http://www.aetnaplastics.com/product...roPipingSystem And anybody who has never worked with PEX is in for a treat. Stuff is amazingly easy. Pex is easy to use. I recently had to add a faucet to my Wife's shop. All the plumbing is in the crawl space so it was easy to tap into the existing copper pipe using brass fittings that are made to be used with either Pex or copper pipe. The fittings atre removable using a horseshoe shaped tool that come 3 in a package for less than a buck. I left the tools on the Pex after the installation so they would be there when I need to add some more plumbing down the road. I have been thinking about using large diameter Pex for air in my shop. I don't know how big it comes though. I want at least 1 1/2 ID. Eric PEX and SharkBites can get you into some incredible places with ease. SBs are spendy, but when you look at the work they save, and how they lessen the fire risk, I think they're worth it. IIRC, the biggest I've seen is 1", but if they make bigger PEX, they should have the bigger SBs. Wonder what those cost. Steve |
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