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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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Aviators oxygen vs welding or medical oxygen.
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?
Actually I just don't know much about this. Can someone help me? |
#3
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Aviators oxygen vs welding or medical oxygen.
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#4
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Aviators oxygen vs welding or medical oxygen.
In Robert Nichols writes:
Here's an interesting quote I ran across at http://www.c-f-c.com/supportdocs/abo1.htm: "Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing." Well, sure. That's quoting from the welding oxygen sales reps.. Bet you'd get the exact same quote, just the other way, if you spoke to medical oxygen sale reps... -- __________________________________________________ ___ Knowledge may be power, but communications is the key [to foil spammers, my address has been double rot-13 encoded] |
#5
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Aviators oxygen vs welding or medical oxygen.
"danny burstein" wrote in message
news In Robert Nichols writes: Here's an interesting quote I ran across at http://www.c-f-c.com/supportdocs/abo1.htm: "Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing." Well, sure. That's quoting from the welding oxygen sales reps.. Bet you'd get the exact same quote, just the other way, if you spoke to medical oxygen sale reps... http://www.ozonesolutions.com/info/i...ygen-different |
#6
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Aviators oxygen vs welding or medical oxygen.
On Sat, 11 Feb 2017 20:01:33 -0800, cecilioucr wrote:
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen? Actually I just don't know much about this. Can someone help me? IIRC oxygen for human consumption has CO2 mixed in. The pathways that regulate breathing sense blood CO2 concentration and make you breath faster when it goes up -- and let you stop breathing when it goes down close to zero. Feel free to Google around and double check. I suspect that a welding supply place wouldn't want to mess with refilling it, but you could check. -- Tim Wescott Control systems, embedded software and circuit design I'm looking for work! See my website if you're interested http://www.wescottdesign.com |
#7
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Aviators oxygen vs welding or medical oxygen.
On Sun, 12 Feb 2017 14:51:11 +0000 (UTC), danny burstein
wrote: In Robert Nichols writes: Here's an interesting quote I ran across at http://www.c-f-c.com/supportdocs/abo1.htm: "Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing." Well, sure. That's quoting from the welding oxygen sales reps.. Bet you'd get the exact same quote, just the other way, if you spoke to medical oxygen sale reps... I used to own a welding supply distributorship. We sold both medical and industrial oxygen. Medical and welding tanks connected to the exact same fill header. The difference is that we had to test the welding oxygen for dewpoint (-50 deg F if I recall correctly) while it didn't matter for medical oxygen. For the medical oxygen, we had to have an FDA license and keep track of lot numbers. Though not required, we recorded the oxygen purity for each lot. The other difference is that the green medical oxygen cylinders had to be internally thoroughly cleaned before initial use to eliminate any potential particulate sources. Bottom line: welding oxygen is of higher quality than medical oxygen. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address |
#8
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Aviators oxygen vs welding or medical oxygen.
On Sun, 12 Feb 2017 10:35:05 -0600, Tim Wescott
wrote: IIRC oxygen for human consumption has CO2 mixed in. NO! At least for medical oxygen. No idea about aviation oxygen but since the oxygen for commercial pilots comes from a LOX tank, I doubt that aviation oxygen has anything added either. The pathways that regulate breathing sense blood CO2 concentration and make you breath faster when it goes up -- and let you stop breathing when it goes down close to zero. This is true to a point but most anyone on medical oxygen has a respiratory or other problem that keeps their O2 sat low. A normal person will have a sat level of from 98 to 100%. The standard of care for starting long term oxygen therapy is 89%, a level that has the patient gasping for breath. I was on concentrator-produced oxygen for several years after a spinal injury severed the nerves that drive my left diaphragm. I had a surgical procedure done by robot called a hemidiaphragmatic plication where the surgeon tied the two diaphragm muscles together. I regained enough lung capacity to get off the oxygen. My O2 sat while I was on the concentrators ran around 95%. Plenty of CO2 in my system to keep me breathing just fine. I have an oxygen concentration meter that I used to check used concentrators before I bought them. A new machine will produce 99% pure oxygen. A machine with a couple of years on it will drop to 97-98%. The sieve columns are replaced at 95%. John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address |
#9
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Aviators oxygen vs welding or medical oxygen.
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#10
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Aviators oxygen vs welding or medical oxygen.
On Sun, 12 Feb 2017 10:29:48 -0500, "Jim Wilkins"
wrote: "danny burstein" wrote in message news In Robert Nichols writes: Here's an interesting quote I ran across at http://www.c-f-c.com/supportdocs/abo1.htm: "Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing." Well, sure. That's quoting from the welding oxygen sales reps.. Bet you'd get the exact same quote, just the other way, if you spoke to medical oxygen sale reps... http://www.ozonesolutions.com/info/i...ygen-different Very interesting, indeed. -- Give me the luxuries of life. I can live without the necessities. --anon |
#11
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Aviators oxygen vs welding or medical oxygen.
The impurity is 'natural' from pumps and valves. In medical oxygen that
might feed through machines that are very expensive or feed a person with 20% of their lung left, the air is FILTERED heavily. At 10 or 20,000 feet with flights up to 80,000 one does not want moisture in the air line. Simple as that. Just like your plasma - water kills. Think of a vacuum cleaner / shop vacuum - and then one with a Hepa filter on it. What air do you breathe while you clean up with it ? Martin On 2/12/2017 8:39 PM, pyotr filipivich wrote: on Sat, 11 Feb 2017 20:01:33 -0800 (PST) typed in rec.crafts.metalworking the following: So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen? Actually I just don't know much about this. Can someone help me? Oxygen is oxygen. And unless someone can explain why they are adding an impurity to the tank, the rest is hand waving. Adding "Aviation" or "Medical" (like "all natural" or "marine") to the label merely means it is going to cost you more. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
#12
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Aviators oxygen vs welding or medical oxygen.
Martin Eastburn on Sun, 12 Feb 2017
21:20:21 -0600 typed in rec.crafts.metalworking the following: The impurity is 'natural' from pumps and valves. In medical oxygen that might feed through machines that are very expensive or feed a person with 20% of their lung left, the air is FILTERED heavily. At 10 or 20,000 feet with flights up to 80,000 one does not want moisture in the air line. Simple as that. I'm still confused. What sort of 'impurities" can be in an oxygen environment? Okay, water / humidity I can understand - it is "inert". But how did it get in their in the first place? One would think that distilling Oxygen out of the atmosphere would first remove the water. Part of my confusion come from having dealt with the specs for manufacturing medical equipment which would be part of the oxygen system. "Not oil at all." Not before, not after, not during "Thou shallt have no oil in the presence of the metal. Neither shall it be on the tools thou useth. On the finished part is straight off." Just like your plasma - water kills. Think of a vacuum cleaner / shop vacuum - and then one with a Hepa filter on it. What air do you breathe while you clean up with it ? Martin On 2/12/2017 8:39 PM, pyotr filipivich wrote: on Sat, 11 Feb 2017 20:01:33 -0800 (PST) typed in rec.crafts.metalworking the following: So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen? Actually I just don't know much about this. Can someone help me? Oxygen is oxygen. And unless someone can explain why they are adding an impurity to the tank, the rest is hand waving. Adding "Aviation" or "Medical" (like "all natural" or "marine") to the label merely means it is going to cost you more. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
#13
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Aviators oxygen vs welding or medical oxygen.
On Monday, February 13, 2017 at 12:14:04 PM UTC-5, pyotr filipivich wrote:
Martin Eastburn on Sun, 12 Feb 2017 21:20:21 -0600 typed in rec.crafts.metalworking the following: The impurity is 'natural' from pumps and valves. In medical oxygen that might feed through machines that are very expensive or feed a person with 20% of their lung left, the air is FILTERED heavily. At 10 or 20,000 feet with flights up to 80,000 one does not want moisture in the air line. Simple as that. I'm still confused. What sort of 'impurities" can be in an oxygen environment? Okay, water / humidity I can understand - it is "inert". But how did it get in their in the first place? One would think that distilling Oxygen out of the atmosphere would first remove the water. Part of my confusion come from having dealt with the specs for manufacturing medical equipment which would be part of the oxygen system. "Not oil at all." Not before, not after, not during "Thou shallt have no oil in the presence of the metal. Neither shall it be on the tools thou useth. On the finished part is straight off." For one thing, improperly cleaned and/or purged tanks / lines / valves / connectors could have all sorts of impurities. just opening the empty tanks valve to ambient air will introduce impurities (notably, in this case, water in the form of atmospheric humidity). |
#14
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Aviators oxygen vs welding or medical oxygen.
On Mon, 13 Feb 2017 09:14:25 -0800, pyotr filipivich
wrote: Martin Eastburn on Sun, 12 Feb 2017 21:20:21 -0600 typed in rec.crafts.metalworking the following: The impurity is 'natural' from pumps and valves. In medical oxygen that might feed through machines that are very expensive or feed a person with 20% of their lung left, the air is FILTERED heavily. At 10 or 20,000 feet with flights up to 80,000 one does not want moisture in the air line. Simple as that. Isn't that why they put the PSA in the bottom of the tank? I'm still confused. What sort of 'impurities" can be in an oxygen environment? Okay, water / humidity I can understand - it is "inert". But how did it get in their in the first place? One would think that distilling Oxygen out of the atmosphere would first remove the water. Part of my confusion come from having dealt with the specs for manufacturing medical equipment which would be part of the oxygen system. "Not oil at all." Not before, not after, not during "Thou shallt have no oil in the presence of the metal. Neither shall it be on the tools thou useth. On the finished part is straight off." Especially in Antioch, unless thy passeth the holy hand grenade. -- Give me the luxuries of life. I can live without the necessities. --anon |
#15
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Aviators oxygen vs welding or medical oxygen.
danny burstein wrote in news
In Robert Nichols writes: Here's an interesting quote I ran across at http://www.c-f-c.com/supportdocs/abo1.htm: "Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing." Well, sure. That's quoting from the welding oxygen sales reps.. Bet you'd get the exact same quote, just the other way, if you spoke to medical oxygen sale reps... I have my doubts; after all, the oxygen you're breathing right now is about four parts impurities to one part oxygen... |
#16
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Aviators oxygen vs welding or medical oxygen.
If you pump air into the medical OX with a cast iron pump with oil
in the rings - you send all sorts of crap from the pump. It also picks up anything from the air it sucks in. Gas / Diesel / pollen ..... and pumps it into the tank. Lots of junk from the air. Guy painting the building or out-gas paint... When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. It is like a scuba tank - can't just suck in the CO the pump puts out into the tank. When I get an OX tank from a company - it comes from a welding supply in a welding tank. When I get an OX tank from a company - and it is for life/death it is from the medical OX supplier. Water is sucked into the pump and into the tank / hose in real time. It is kept out of OX for life. OX is generated in chemical reactions in canisters for airplanes. Now and then one catches fire and causes news on the TV. N2 tanks are 'dry' tanks also. No water. Many plasma machines use N2 not air. Plasma creates instant steam and it blasts the beam wide and cools it as well giving a poor and sloppy cut edge. Martin On 2/13/2017 11:14 AM, pyotr filipivich wrote: Martin Eastburn on Sun, 12 Feb 2017 21:20:21 -0600 typed in rec.crafts.metalworking the following: The impurity is 'natural' from pumps and valves. In medical oxygen that might feed through machines that are very expensive or feed a person with 20% of their lung left, the air is FILTERED heavily. At 10 or 20,000 feet with flights up to 80,000 one does not want moisture in the air line. Simple as that. I'm still confused. What sort of 'impurities" can be in an oxygen environment? Okay, water / humidity I can understand - it is "inert". But how did it get in their in the first place? One would think that distilling Oxygen out of the atmosphere would first remove the water. Part of my confusion come from having dealt with the specs for manufacturing medical equipment which would be part of the oxygen system. "Not oil at all." Not before, not after, not during "Thou shallt have no oil in the presence of the metal. Neither shall it be on the tools thou useth. On the finished part is straight off." Just like your plasma - water kills. Think of a vacuum cleaner / shop vacuum - and then one with a Hepa filter on it. What air do you breathe while you clean up with it ? Martin On 2/12/2017 8:39 PM, pyotr filipivich wrote: on Sat, 11 Feb 2017 20:01:33 -0800 (PST) typed in rec.crafts.metalworking the following: So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen? Actually I just don't know much about this. Can someone help me? Oxygen is oxygen. And unless someone can explain why they are adding an impurity to the tank, the rest is hand waving. Adding "Aviation" or "Medical" (like "all natural" or "marine") to the label merely means it is going to cost you more. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
#17
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Aviators oxygen vs welding or medical oxygen.
Martin Eastburn on Wed, 15 Feb 2017
21:42:38 -0600 typed in rec.crafts.metalworking the following: If you pump air into the medical OX with a cast iron pump with oil in the rings - you send all sorts of crap from the pump. It also picks up anything from the air it sucks in. Gas / Diesel / pollen ..... and pumps it into the tank. Lots of junk from the air. Guy painting the building or out-gas paint... And what you have is not a tank of oxygen. When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. It is like a scuba tank - can't just suck in the CO the pump puts out into the tank. When I get an OX tank from a company - it comes from a welding supply in a welding tank. And it has nitrogen, co2, h2o, pollen and dust in it? When I get an OX tank from a company - and it is for life/death it is from the medical OX supplier. Water is sucked into the pump and into the tank / hose in real time. It is kept out of OX for life. OX is generated in chemical reactions in canisters for airplanes. Now and then one catches fire and causes news on the TV. N2 tanks are 'dry' tanks also. No water. Many plasma machines use N2 not air. Plasma creates instant steam and it blasts the beam wide and cools it as well giving a poor and sloppy cut edge. Martin On 2/13/2017 11:14 AM, pyotr filipivich wrote: Martin Eastburn on Sun, 12 Feb 2017 21:20:21 -0600 typed in rec.crafts.metalworking the following: The impurity is 'natural' from pumps and valves. In medical oxygen that might feed through machines that are very expensive or feed a person with 20% of their lung left, the air is FILTERED heavily. At 10 or 20,000 feet with flights up to 80,000 one does not want moisture in the air line. Simple as that. I'm still confused. What sort of 'impurities" can be in an oxygen environment? Okay, water / humidity I can understand - it is "inert". But how did it get in their in the first place? One would think that distilling Oxygen out of the atmosphere would first remove the water. Part of my confusion come from having dealt with the specs for manufacturing medical equipment which would be part of the oxygen system. "Not oil at all." Not before, not after, not during "Thou shallt have no oil in the presence of the metal. Neither shall it be on the tools thou useth. On the finished part is straight off." Just like your plasma - water kills. Think of a vacuum cleaner / shop vacuum - and then one with a Hepa filter on it. What air do you breathe while you clean up with it ? Martin On 2/12/2017 8:39 PM, pyotr filipivich wrote: on Sat, 11 Feb 2017 20:01:33 -0800 (PST) typed in rec.crafts.metalworking the following: So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen? Actually I just don't know much about this. Can someone help me? Oxygen is oxygen. And unless someone can explain why they are adding an impurity to the tank, the rest is hand waving. Adding "Aviation" or "Medical" (like "all natural" or "marine") to the label merely means it is going to cost you more. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
#18
Posted to rec.crafts.metalworking
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Aviators oxygen vs welding or medical oxygen.
Martin Eastburn wrote:
If you pump air into the medical OX with a cast iron pump with oil in the rings - you send all sorts of crap from the pump. It also picks up anything from the air it sucks in. Gas / Diesel / pollen ..... and pumps it into the tank. Lots of junk from the air. Guy painting the building or out-gas paint... When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. It is like a scuba tank - can't just suck in the CO the pump puts out into the tank. When I get an OX tank from a company - it comes from a welding supply in a welding tank. When I get an OX tank from a company - and it is for life/death it is from the medical OX supplier. Water is sucked into the pump and into the tank / hose in real time. It is kept out of OX for life. OX is generated in chemical reactions in canisters for airplanes. Now and then one catches fire and causes news on the TV. N2 tanks are 'dry' tanks also. No water. Many plasma machines use N2 not air. Plasma creates instant steam and it blasts the beam wide and cools it as well giving a poor and sloppy cut edge. This facility compresses air into a liquid, then it boils off each gas to separate them. The majority of the oxygen is fed to the AK steel mill a couple miles away, but they also supply hospitals with oxygen. They also sell the rare gases that were mixed into the air, for industrial use. The reduction towers are huge, and the pumps are noisy. I used to live near it, and I was involved in the upgrade when the sections of new towers were transported from the Ohio river, through our cable TV system. Each piece was moved on a 40 axle, 4,000HP crawler with a top speed of five MPH. The assembly was done in England, since no place in the US could transport that weight on existing roads and bridges. It would have been in many smaller sections, and taken at least two more years to add the needed Oxygen capacity. ,881m/data=!3m1!1e3!4m5!3m4!1s0x0:0x106f597f0d4863a3!8m2 !3d39.488846!4d-84.397463 -- Never **** off an Engineer! They don't get mad. They don't get even. They go for over unity! ;-) |
#19
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Aviators oxygen vs welding or medical oxygen.
Oh sigh...
On 2/15/2017 10:16 PM, pyotr filipivich wrote: Martin Eastburn on Wed, 15 Feb 2017 21:42:38 -0600 typed in rec.crafts.metalworking the following: If you pump air into the medical OX with a cast iron pump with oil in the rings - you send all sorts of crap from the pump. It also picks up anything from the air it sucks in. Gas / Diesel / pollen ..... and pumps it into the tank. Lots of junk from the air. Guy painting the building or out-gas paint... And what you have is not a tank of oxygen. This is a 'green' tank marked Oxygen for welding. One uses filters if it must be cleaner. In a torch - Oxygen/Hydro... it doesn't matter. If it did you would put a particle filter on it. Don't breathe this as medical ox. When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. It is like a scuba tank - can't just suck in the CO the pump puts out into the tank. When I get an OX tank from a company - it comes from a welding supply in a welding tank. And it has nitrogen, co2, h2o, pollen and dust in it? Oxygen tanks are percentage of pure OX. It will have other stuff in it if 98% Ox. One never gets pure Ox in an iron/steel tank. It would have to be glass lined and purged/cleaned every time. Air isn't pure Ox. It is mostly Nitrogen. It has He in it as well. All sorts of non OX is in air. When I get an OX tank from a company - and it is for life/death it is from the medical OX supplier. And why if it is always 100% pure OX is there Medical grade ? It isn't just medical grade container. Water is sucked into the pump and into the tank / hose in real time. It is kept out of OX for life. OX is generated in chemical reactions in canisters for airplanes. Now and then one catches fire and causes news on the TV. N2 tanks are 'dry' tanks also. No water. Many plasma machines use N2 not air. Plasma creates instant steam and it blasts the beam wide and cools it as well giving a poor and sloppy cut edge. Martin On 2/13/2017 11:14 AM, pyotr filipivich wrote: Martin Eastburn on Sun, 12 Feb 2017 21:20:21 -0600 typed in rec.crafts.metalworking the following: The impurity is 'natural' from pumps and valves. In medical oxygen that might feed through machines that are very expensive or feed a person with 20% of their lung left, the air is FILTERED heavily. At 10 or 20,000 feet with flights up to 80,000 one does not want moisture in the air line. Simple as that. I'm still confused. What sort of 'impurities" can be in an oxygen environment? Okay, water / humidity I can understand - it is "inert". But how did it get in their in the first place? One would think that distilling Oxygen out of the atmosphere would first remove the water. Part of my confusion come from having dealt with the specs for manufacturing medical equipment which would be part of the oxygen system. "Not oil at all." Not before, not after, not during "Thou shallt have no oil in the presence of the metal. Neither shall it be on the tools thou useth. On the finished part is straight off." Just like your plasma - water kills. Think of a vacuum cleaner / shop vacuum - and then one with a Hepa filter on it. What air do you breathe while you clean up with it ? Martin On 2/12/2017 8:39 PM, pyotr filipivich wrote: on Sat, 11 Feb 2017 20:01:33 -0800 (PST) typed in rec.crafts.metalworking the following: So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen? Actually I just don't know much about this. Can someone help me? Oxygen is oxygen. And unless someone can explain why they are adding an impurity to the tank, the rest is hand waving. Adding "Aviation" or "Medical" (like "all natural" or "marine") to the label merely means it is going to cost you more. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
#20
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Aviators oxygen vs welding or medical oxygen.
Martin Eastburn on Thu, 16 Feb 2017
17:21:58 -0600 typed in rec.crafts.metalworking the following: Oh sigh... On 2/15/2017 10:16 PM, pyotr filipivich wrote: Martin Eastburn on Wed, 15 Feb 2017 21:42:38 -0600 typed in rec.crafts.metalworking the following: If you pump air into the medical OX with a cast iron pump with oil in the rings - you send all sorts of crap from the pump. It also picks up anything from the air it sucks in. Gas / Diesel / pollen ..... and pumps it into the tank. Lots of junk from the air. Guy painting the building or out-gas paint... And what you have is not a tank of oxygen. This is a 'green' tank marked Oxygen for welding. One uses filters if it must be cleaner. In a torch - Oxygen/Hydro... it doesn't matter. If it did you would put a particle filter on it. Don't breathe this as medical ox. I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. It is like a scuba tank - can't just suck in the CO the pump puts out into the tank. When I get an OX tank from a company - it comes from a welding supply in a welding tank. And it has nitrogen, co2, h2o, pollen and dust in it? Oxygen tanks are percentage of pure OX. It will have other stuff in it if 98% Ox. One never gets pure Ox in an iron/steel tank. I would expect that to be true. After all, iron oxidizes rather well, and unfortunately, the oxides lack the structural integrity to protect the un oxidized iron from exposure. It would have to be glass lined and purged/cleaned every time. Air isn't pure Ox. It is mostly Nitrogen. It has He in it as well. All sorts of non OX is in air. There must be something to the magic of getting oxygen into tanks which I'm missing. When I get an OX tank from a company - and it is for life/death it is from the medical OX supplier. And why if it is always 100% pure OX is there Medical grade ? It isn't just medical grade container. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
#21
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Aviators oxygen vs welding or medical oxygen.
pyotr filipivich wrote:
Martin Eastburn on Thu, 16 Feb 2017 17:21:58 -0600 typed in rec.crafts.metalworking the following: Oh sigh... On 2/15/2017 10:16 PM, pyotr filipivich wrote: Martin Eastburn on Wed, 15 Feb 2017 21:42:38 -0600 typed in rec.crafts.metalworking the following: If you pump air into the medical OX with a cast iron pump with oil in the rings - you send all sorts of crap from the pump. It also picks up anything from the air it sucks in. Gas / Diesel / pollen ..... and pumps it into the tank. Lots of junk from the air. Guy painting the building or out-gas paint... And what you have is not a tank of oxygen. This is a 'green' tank marked Oxygen for welding. One uses filters if it must be cleaner. In a torch - Oxygen/Hydro... it doesn't matter. If it did you would put a particle filter on it. Don't breathe this as medical ox. I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. It is like a scuba tank - can't just suck in the CO the pump puts out into the tank. When I get an OX tank from a company - it comes from a welding supply in a welding tank. And it has nitrogen, co2, h2o, pollen and dust in it? Oxygen tanks are percentage of pure OX. It will have other stuff in it if 98% Ox. One never gets pure Ox in an iron/steel tank. I would expect that to be true. After all, iron oxidizes rather well, and unfortunately, the oxides lack the structural integrity to protect the un oxidized iron from exposure. It would have to be glass lined and purged/cleaned every time. Air isn't pure Ox. It is mostly Nitrogen. It has He in it as well. All sorts of non OX is in air. There must be something to the magic of getting oxygen into tanks which I'm missing. When I get an OX tank from a company - and it is for life/death it is from the medical OX supplier. And why if it is always 100% pure OX is there Medical grade ? It isn't just medical grade container. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." As a medic who uses "medical" oxygen a lot. You basically have steel tanks, aluminum tanks and some stainless steel. Steel are usually higher pressure units, used as vehicle born or stationary tanks feeding into a manifold. There are steel portable tanks still out there but they are a dying item. As they fail hydro they are replaced by aluminum. Stainless are usually liquid oxygen for hospitals and bulk transport. For most of the local ambulance and rescue units we just swap empty tanks as needed. Where do we swap out our "medical oxygen" tanks? The local welding supply place, who fill medical O2 and welding O2 from the same tank.... -- Steve W. |
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Aviators oxygen vs welding or medical oxygen.
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich
wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address |
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Aviators oxygen vs welding or medical oxygen.
"pyotr filipivich" wrote in message
..... I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. http://www.documentation.emersonproc...100071x012.pdf : http://www.ozoneapplications.com/inf..._materials.htm http://www.ozoneservices.com/articles/004.htm Mixtures of active materials may not spontaneously react: https://en.wikipedia.org/wiki/Activation_energy That's why we can store and handle high explosives. -jsw |
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Aviators oxygen vs welding or medical oxygen.
On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon John wrote:
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address 1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure? 2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering. JPB |
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Aviators oxygen vs welding or medical oxygen.
"rangerssuck" wrote in message
... On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon John wrote: On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address 1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure? 2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering. JPB https://en.wikipedia.org/wiki/Air_separation |
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Aviators oxygen vs welding or medical oxygen.
On Wednesday, March 1, 2017 at 11:00:16 AM UTC-5, Jim Wilkins wrote:
"rangerssuck" wrote in message ... On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon John wrote: On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address 1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure? 2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering. JPB https://en.wikipedia.org/wiki/Air_separation thanks. More information I will never use, but it does keep the brain lubricated. |
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Aviators oxygen vs welding or medical oxygen.
"rangerssuck" wrote in message
... On Wednesday, March 1, 2017 at 11:00:16 AM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon John wrote: On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address 1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure? 2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering. JPB https://en.wikipedia.org/wiki/Air_separation thanks. More information I will never use, but it does keep the brain lubricated. Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? -Sophocles |
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Aviators oxygen vs welding or medical oxygen.
On Thursday, March 2, 2017 at 11:50:29 AM UTC-5, Jim Wilkins wrote:
"rangerssuck" wrote in message ... On Wednesday, March 1, 2017 at 11:00:16 AM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon John wrote: On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address 1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure? 2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering. JPB https://en.wikipedia.org/wiki/Air_separation thanks. More information I will never use, but it does keep the brain lubricated. Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? -Sophocles me, though the three is not so often yet, depending on a number of things. What has four wheels and flies? |
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Aviators oxygen vs welding or medical oxygen.
"rangerssuck" wrote in message ... On Thursday, March 2, 2017 at 11:50:29 AM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Wednesday, March 1, 2017 at 11:00:16 AM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon John wrote: On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address 1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure? 2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering. JPB https://en.wikipedia.org/wiki/Air_separation thanks. More information I will never use, but it does keep the brain lubricated. Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? -Sophocles me, though the three is not so often yet, depending on a number of things. What has four wheels and flies? A garbage truck. |
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Aviators oxygen vs welding or medical oxygen.
On Thursday, March 2, 2017 at 12:54:57 PM UTC-5, Jim Wilkins wrote:
"rangerssuck" wrote in message ... On Thursday, March 2, 2017 at 11:50:29 AM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Wednesday, March 1, 2017 at 11:00:16 AM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon John wrote: On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address 1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure? 2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering. JPB https://en.wikipedia.org/wiki/Air_separation thanks. More information I will never use, but it does keep the brain lubricated. Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? -Sophocles me, though the three is not so often yet, depending on a number of things. What has four wheels and flies? A garbage truck. Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?" |
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Aviators oxygen vs welding or medical oxygen.
Jim Wilkins wrote:
Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? A person: crawls on all fours, walks upright, uses a stick. -- "I'm a doctor, not a mechanic." Dr Leonard McCoy "I'm a mechanic, not a doctor." Volker Borchert |
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Aviators oxygen vs welding or medical oxygen.
rangerssuck on Thu, 2 Mar 2017 11:42:25 -0800
(PST) typed in rec.crafts.metalworking the following: thanks. More information I will never use, but it does keep the brain lubricated. Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? -Sophocles me, though the three is not so often yet, depending on a number of things. What has four wheels and flies? A garbage truck. Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?" Frozen fish truck. Why did the monkey fall out of the tree? -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
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Aviators oxygen vs welding or medical oxygen.
"rangerssuck" wrote in message ... On Thursday, March 2, 2017 at 12:54:57 PM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Thursday, March 2, 2017 at 11:50:29 AM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Wednesday, March 1, 2017 at 11:00:16 AM UTC-5, Jim Wilkins wrote: "rangerssuck" wrote in message ... On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon John wrote: On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich wrote: I'm still curious as to how one can have compounds in a 100% or even 99.9% Oxy environment. Because commercially pure (medical or welding) gas simply isn't that pure. In all but the smallest plants, oxygen, nitrogen and argon tanks are filled by boiling that component of liquid air, separated by a fractionation tower. Oxygen contains a little nitrogen and all the compressed gases contain traces of helium. Research grade (so called "5 9s") gas is made by refining the commercial grade gas through filters, catalysts and absorbers. That gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon for my sign making) and has little commercial use. John When medical OX is made, the pump is in a nylon pump and it squeezes the oxygen by squeezing a hose from a series of filters into the tank. Except for very small operations such as a hospital refilling their own "E" tanks, oxygen is NOT compressed. Much more efficient to boil the liquid. Even when an oxygen compressor is used, it contains no nylon. The nylon would diesel on the compression stroke. My experience with breathing air and oxygen compressors is that they use a mica-graphite compound for seals and piston rings. John John DeArmond http://www.neon-john.com http://www.tnduction.com Tellico Plains, Occupied TN See website for email address 1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure? 2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering. JPB https://en.wikipedia.org/wiki/Air_separation thanks. More information I will never use, but it does keep the brain lubricated. Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? -Sophocles me, though the three is not so often yet, depending on a number of things. What has four wheels and flies? A garbage truck. Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?" Firetruck |
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Aviators oxygen vs welding or medical oxygen.
"pyotr filipivich" wrote in message news rangerssuck on Thu, 2 Mar 2017 11:42:25 -0800 (PST) typed in rec.crafts.metalworking the following: thanks. More information I will never use, but it does keep the brain lubricated. Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? -Sophocles me, though the three is not so often yet, depending on a number of things. What has four wheels and flies? A garbage truck. Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?" Frozen fish truck. Why did the monkey fall out of the tree? -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." Gravity |
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Aviators oxygen vs welding or medical oxygen.
"Jim Wilkins" wrote in message
news "rangerssuck" wrote in message Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?" Firetruck Here's a real puzzle that remains to be solved. The RMS Titanic broke in half at the surface and spilled some of its coal and boilers, which fell in a small cluster that almost certainly marks the breakup position. However the Captain's hasty initial distress message placed the ship 20 miles further west, almost an hour's steaming and much more than the uncertainty of clear weather navigation back then. They had taken a star sight only 4 hours earlier and were accurate within about a more typical mile in latitude. Titanic subsequently radioed a corrected position that was still 14 miles too far westward, on the far side of the ice field. https://www.encyclopedia-titanica.or...hart-jpg.1388/ The rescue ships headed for the reported position instead of the actual one and the survivors were fortunate that their lifeboats had drifted toward the track of Carpathia, whose captain covered up the error by claiming he rushed to the SOS position at a miraculously high speed. No one knew better until Ballard found the wreck. -jsw |
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Aviators oxygen vs welding or medical oxygen.
rangerssuck wrote:
What has four wheels and flies? Ed Huntress, he has lots of flies! -- Never **** off an Engineer! They don't get mad. They don't get even. They go for over unity! ;-) |
#37
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Aviators oxygen vs welding or medical oxygen.
pyotr filipivich wrote:
Why did the monkey fall out of the tree? It ate too many fermented bananas. -- Never **** off an Engineer! They don't get mad. They don't get even. They go for over unity! ;-) |
#38
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Aviators oxygen vs welding or medical oxygen.
Jim Wilkins wrote:
"rangerssuck" wrote in message What has four wheels and flies? A garbage truck. All of the Garbage trucks that I've seen have dual rear wheels. -- Never **** off an Engineer! They don't get mad. They don't get even. They go for over unity! ;-) |
#39
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Aviators oxygen vs welding or medical oxygen.
"Michael A. Terrell" wrote in message ... Jim Wilkins wrote: "rangerssuck" wrote in message What has four wheels and flies? A garbage truck. All of the Garbage trucks that I've seen have dual rear wheels. It was a manure wagon in the original Latin. |
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Aviators oxygen vs welding or medical oxygen.
"pyotr filipivich" wrote in message
news - hide quoted text - rangerssuck on Thu, 2 Mar 2017 11:42:25 -0800 (PST) typed in rec.crafts.metalworking the following: thanks. More information I will never use, but it does keep the brain lubricated. Good. Try your well-oiled brain on the Riddle of the Sphinx: What walks on four legs in the morning, two legs at noon and three in the afternoon? -Sophocles me, though the three is not so often yet, depending on a number of things. What has four wheels and flies? A garbage truck. Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?" Frozen fish truck. Why did the monkey fall out of the tree? I don't know, but have you seen the chimp running with the dog video? https://m.youtube.com/watch?v=7SYboDdRNVE |
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