muddinguy
Well-known member
This sounds like a recipie for disaster but has anyone ever run an oxy acy hose reel overhead and run the hoses in the wall?
Running oxy acy hoses in wall?
- Thread starter muddinguy
- Start date
GYPSY400
Well-known member
I would just put them on a cart..
Streetbu
Well-known member
Not no, but HELL NO!
Playwme
Well-known member
I was always taught to drain the hoses when finished. A 100' reel might waste a lot of gas if that's the normal practice over there.
Sureshot
ALLIANCE MEMBER
Put them inside conduit so you can swap them out and if a leak would occur it vents outside the wall. No big deal.
ratdoggy
Well-known member
Oxygen and acetylene hoses are two things I wouldn't want a mouse to chew on.
Bondo
Well-known member
Ayuh,.... I've been into literally Thousands of Shops, 'n Never, Ever seen hard plumbed O/Ac,....
Sounds like a foolish, Extremely dangerous thought,...
Get a tank cart, 'n traditional hoses,....
Sounds like a foolish, Extremely dangerous thought,...
Get a tank cart, 'n traditional hoses,....
hardalada
Well-known member
Hospitals run oxygen through walls. What do they use?
trainer
Well-known member
I remember seeing a warning that copper piping should not be used with acetylene. I cant remember the reason, but it may be worth a google .
Copper I believe.
trainer
Well-known member
It used to be very common in schools when they taught gas welding .
A manifold system to connect several tanks, and a regulator to reduce the pressure to a safe level, hard piping to each work station, and a set of regulators and hoses at each station.
It's no more dangerous than natural gas or propane lines run inside a building.
porschedude996TT
Well-known member
I don’t think I would run the lines in the wall, maybe through the wall, but not inside the wall like an electrical service. Consider the risks! Let’s say you had the lines in the wall without any joints or junctions, just the properly bent tubing free from leaks and defects. Then several years later when you wanted to hang something like a picture or a shelf or a clock on the wall and you hit the line just enough to weaken the tube. Now we have a condition that could, after some amount of cycles, start to leak without you knowing. I would run the lines (Stainless Steel Tubing) using Swagelok or equivalent that use a metal to metal sealing feature. I would cut small lengths of Uni-Strut to tie to the vertical studs in the wall every other stud (32”) up near the ceiling and then using Uni-Strut Cushioned Tubing Clamps fix the tube to the Uni-Strut. It would be a clean industrial look and would be easy to inspect every so often. I would also make a bracket and using Swagelok Bulkhead Fitting make a proper connection point for your hoses. I would also make a shield to protect the line from impact on the vertical runs up and down. Not real need to shield the horizontal runs unless there is the possibility of impact damage during the service life of the lines.
If you had to run through the wall, like from one area to another area, I would make sure that it was protected and well supported and that there were no junctions in the wall.
I would never run rubber hoses in the wall…
If you had to run through the wall, like from one area to another area, I would make sure that it was protected and well supported and that there were no junctions in the wall.
I would never run rubber hoses in the wall…
79firebird
Well-known member
A friend of mine in his shop he wanted to have access on both sides of his shop so he just ran 1 inch pvc pipe and pulled a hose thru that keeps it off the floor of the shop and if there is a prob he can pull it out later on.
The mean fish
Well-known member
- Joined
- Aug 31, 2010
- Messages
- 323
It's all hard piped copper but they're also required to have well tested alarm systems on all piped gasses and localized cutoff valves for every room and pipe branch.
sberry
Banned
Welding schools are usually piped steel and not behind walls, thru maybe but not concealed.
This is a good place to ask what for? Is this some real working scheme to reduce cost or just seem like a cool idea? You could chain bottles out of the way some and hose to the reel. I wouldn't care about draining the lines but they need convenient shut off.
The advent of plasma has greatly reduced the need for torches. At one time I had central with 2 gasses for cost reduction, a 100 ft on 2 heads and it worked pretty good. I went back to a cart and push it out of the way, you cant get away from taking some space, a reel doesn't eliminate that and not sure of your personal demand but its easy to go a week without using a torch, simple is good, a reel is ok but cost money, is extra equipment when the duty cycle can be low.
Spend the savings on a reel toward a plasma.
This is a good place to ask what for? Is this some real working scheme to reduce cost or just seem like a cool idea? You could chain bottles out of the way some and hose to the reel. I wouldn't care about draining the lines but they need convenient shut off.
The advent of plasma has greatly reduced the need for torches. At one time I had central with 2 gasses for cost reduction, a 100 ft on 2 heads and it worked pretty good. I went back to a cart and push it out of the way, you cant get away from taking some space, a reel doesn't eliminate that and not sure of your personal demand but its easy to go a week without using a torch, simple is good, a reel is ok but cost money, is extra equipment when the duty cycle can be low.
Spend the savings on a reel toward a plasma.
Attachments
Piping acetylene inside a wall is a recipe for an explosion. Unlike propane, acetylene is combustible at mixtures between 2.5% and 82% in air and has a low autoignition temperature.
Translation:
Almost any mixture of acetylene in air is flammable and capable of being ignited by basically any ignition source.
Translation:
Almost any mixture of acetylene in air is flammable and capable of being ignited by basically any ignition source.
mr overdunne
Well-known member
- Joined
- Apr 16, 2014
- Messages
- 137
You are supposed to empty the lines to keep pressures off the diaphragm. I don't know how far your run is but it sounds like a horrible idea.
Big Bad Dad
Well-known member
Wait until somebody doesn't know they are there and drills a hole for something............
jayrush13
Well-known member
I can name 3 schools within 30 miles of me that have this and one was built less then 5 years ago it was very common in a training setting it would be caos with 30 sets of bottles for all the students. But I always remember black iron pipe surface mounted on the wall maybe thru a wall but never concealed in the wall
sberry
Banned
They used to generate and pipe gases in plants for welding. Manifolds and special equipment is still used but its not ideal for the common handyman maintenance/construction auto worker diy type. Its so simple and cheap to set up with ready made equipment on a cart, short hose and puts the bottles near the operator. 99% of the systems set up for it don't use a reel, I don't on my service truck, my use is occasional and not running in/out half a dozen times a day with new lead. Once a week got to string out a hose, no big deal.
Air is another matter. An air hose is a never ending discipline.
My neighbor has a little baby comp rigged in with a switch, it doesn't leak and has a filter regulator and 50 ft of hose he hangs up, takes off 2 or 3 loops and it reaches his bench and well outside the door. He has a spare 50 ft hose on the shelf, reaches all his buildings. This is a guy that done it every way they can.
He went thru a career and came full circle to the most basic he can get.
Air is another matter. An air hose is a never ending discipline.
My neighbor has a little baby comp rigged in with a switch, it doesn't leak and has a filter regulator and 50 ft of hose he hangs up, takes off 2 or 3 loops and it reaches his bench and well outside the door. He has a spare 50 ft hose on the shelf, reaches all his buildings. This is a guy that done it every way they can.
He went thru a career and came full circle to the most basic he can get.
readhead
Well-known member
I worked at a couple of shops that had O, ACT and Argon piped in the walls. Why is everybody assuming it will leak? If installed properly it would be fine. Do you assume the water pipes in your house will leak? Yea I know water won't kill you but I think you get my point. Oxygen has been piped in medical buildings as long as I can remember.
If it would make you feel better then surface mount it and use quick connects at the outlets.
Of course we are talking hard pipe here and not hoses.
If it would make you feel better then surface mount it and use quick connects at the outlets.
Of course we are talking hard pipe here and not hoses.
Last edited:
G_P
Well-known member
Hospital gas tubing is brazed at the joints I believe and there are numerous emergency shutoffs located all thought each floor. Also a special license is needed to do plumbing work on medical gas systems.
It could be done and done safely but it would be very expensive to do properly. Your homeowners insurance company would probably **** bricks if they found out what you were doing as well.
Go on Youtube and look up videos of a garbage bag full of oxy/acet being lit off. Now imagine your entire shop being filled with that if there is a leak!
It could be done and done safely but it would be very expensive to do properly. Your homeowners insurance company would probably **** bricks if they found out what you were doing as well.
Go on Youtube and look up videos of a garbage bag full of oxy/acet being lit off. Now imagine your entire shop being filled with that if there is a leak!
readhead
Well-known member
Everything could be on a cart and leak also. A certain amount of responsibility to make sure the cylinders are off is required.
rlitman
Well-known member
Brazed copper could be used, but only if the line is purged before brazing. Any internal contamination could be dangerous as it is a breathing gas.
But stainless is the usual material spec'd for oxygen lines here.
But seriously, plumbing oxygen is no DIY job.
LOL, you're better off with PVC than copper for acetylene.
Pure copper pipes containing acetylene can form copper acetylide. That's some seriously nasty stuff. Shock sensitive, and quite explosive.
I have some friends that are
licensed pipefitters. It takes extra
certification for medical gases.
The modern systems are computer
monitored with automatic valves
and manual back ups. Having
said that just helped finish a project about a year ago. They took
a National Guard armory and turned it into a welding school.
The electrical service and fume
extractors would make you drool.
Torches, what few I saw were on
carts. Plasma cutters everywhere.
Our tax dollars at work.!
But you asked could you do it.
Yes you could. But I would mount
whatever it is externally on the
wall. And I would go online and
check the code in your area. If you
just run twin hose through PVC it
could be considered temporary.
No matter what YOU dont want to
be responsible for a fire at your
residence. There have been cases
in our area where insurance would
not pay if a permit wasnt pulled.
And the safety of your family of
course trumps everything.
Sent from my SCH-S720C using Tapatalk 2
licensed pipefitters. It takes extra
certification for medical gases.
The modern systems are computer
monitored with automatic valves
and manual back ups. Having
said that just helped finish a project about a year ago. They took
a National Guard armory and turned it into a welding school.
The electrical service and fume
extractors would make you drool.
Torches, what few I saw were on
carts. Plasma cutters everywhere.
Our tax dollars at work.!
But you asked could you do it.
Yes you could. But I would mount
whatever it is externally on the
wall. And I would go online and
check the code in your area. If you
just run twin hose through PVC it
could be considered temporary.
No matter what YOU dont want to
be responsible for a fire at your
residence. There have been cases
in our area where insurance would
not pay if a permit wasnt pulled.
And the safety of your family of
course trumps everything.
Sent from my SCH-S720C using Tapatalk 2
Todd.Brock
Well-known member
bon3s
Well-known member
Everything in the hospitals (currently on site at a new hospital going up) is not only copper, but the wall thickness is greater than that of household plumbing, additionally they have to braze it all, not solder it, as well as test it 2-3 times (from different manifold locations). As for number of shut offs they have installed, id say its in the 50-70 per floor on the floors with surgical suites.
This is done not only for oxygen, but for any additional gas that is used for medical application.
The current 7 floor project I'm on has more plumbers than you can count...
This is done not only for oxygen, but for any additional gas that is used for medical application.
The current 7 floor project I'm on has more plumbers than you can count...
AndyA
Well-known member
It would probably be cheaper to just buy another set of tanks. Then you have a backup when you run out of gas and the store is closed.
Theres a pretty big difference between a hospital and pretty much any other location that people use.. Hospital rules are always more stringent and require more certifications. A building full of sick and broken people is a lot harder to clear out then a shop with a couple healthy people working in it..
I dont see why you couldnt plumb both threw black iron in any shop type environment.. I would not put it in a wall myself but its probably no more dangerous in a wall then anywhere else.. Hell sch. 80 pipe is gonna be allot more forgiving then a green and red hose...