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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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#81
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Initial fill of new Propane tank fact or fiction on purge needed
Interesting thing I saw with my own eyes..I went with a buddy to purchase a
used propane tank one Saturday morning about a month ago. We are under the impression from a source that the tank is left over from a tobacco bulk barn operation. When we get to the place, I could not believe my eyes! It turned out to be a guy who recycles used propane tanks, and he had at least a couple acres of tanks of all shapes and sizes, from camper tanks to multi-thousand gallon ones. As we got out of the truck, we noticed several tanks about 100 feet away with 3 inch holes burned in them with a cutting torch, just sitting there slowly burning off the residual fumes in the tank. Needless to say, this made us rather uneasy. Upon talking to the guy, he told us he had been doing this for over 20 years, and had never had an injury or serious incident. He said as the first penetration is made, there is a whoosh from the tank, then it subsides to a slow burn. They do this all day, every day. My buddy bought a used 350 gallon tank from him for $100 and we went on our way. 123 tanks were $30, and 100 pounders were $10, He throws a regulator in on the deal if he has one at the time. I checked with a local gas company about him and the response was "Yeah, he does all our excess tanks, and everybody else's around". I asked the requirements on them filling a tank like that on home delivery, and all they required was a bill of sale or a receipt to prove ownership of the tank, which around here also gets you a 5 cent discount per gallon. As a side note, I purged a 123 gallon tank and used it with a relief valve and a bottom drain for an extra capacity air tank on my sandblasting rig for about 5 years with no problems. The mercaptan smell went away after a little usage. Sandblasting puts out large amounts of static electricity, also. RJ "DoN. Nichols" wrote in message ... In article , Richard J Kinch wrote: George E. Cawthon writes: So just add that to the pressure of the propane which someone suggest was at least 200 psi No, more like 26 psi (0 deg F), 122 psi (70 deg F), or 190 psi (100 deg F). I suppose now someone will ask, "hey, can I use my propane tank to run my air tools without a compressor?" Sure -- until the first spark. :-) A die grinder with front exhaust would be an interesting experience -- outdoors. :-) Something else -- indoors -- might be the last thing you do. Or -- a die grinder with rear exhaust would really call for Nomex work clothes. :-) Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#82
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Initial fill of new Propane tank fact or fiction on purge needed
And just where might this fellow be located? I am looking for a
l;arger propane tanke and so is my friend, to use for a compressor tank. No one around this area will sell a tank unless its new. Any used tanks larger than 100# that gas companies have are always scraped or refurbed and rented out. On Wed, 24 Dec 2003 10:08:43 -0500, "Backlash" wrote: ===Interesting thing I saw with my own eyes..I went with a buddy to purchase a ===used propane tank one Saturday morning about a month ago. We are under the ===impression from a source that the tank is left over from a tobacco bulk barn ===operation. When we get to the place, I could not believe my eyes! It turned ===out to be a guy who recycles used propane tanks, and he had at least a ===couple acres of tanks of all shapes and sizes, from camper tanks to ===multi-thousand gallon ones. As we got out of the truck, we noticed several ===tanks about 100 feet away with 3 inch holes burned in them with a cutting ===torch, just sitting there slowly burning off the residual fumes in the tank. ===Needless to say, this made us rather uneasy. Upon talking to the guy, he ===told us he had been doing this for over 20 years, and had never had an ===injury or serious incident. He said as the first penetration is made, there ===is a whoosh from the tank, then it subsides to a slow burn. They do this all ===day, every day. === My buddy bought a used 350 gallon tank from him for $100 and we went on ===our way. 123 tanks were $30, and 100 pounders were $10, He throws a ===regulator in on the deal if he has one at the time. I checked with a local ===gas company about him and the response was "Yeah, he does all our excess ===tanks, and everybody else's around". I asked the requirements on them ===filling a tank like that on home delivery, and all they required was a bill ===of sale or a receipt to prove ownership of the tank, which around here also ===gets you a 5 cent discount per gallon. As a side note, I purged a 123 gallon ===tank and used it with a relief valve and a bottom drain for an extra ===capacity air tank on my sandblasting rig for about 5 years with no problems. ===The mercaptan smell went away after a little usage. Sandblasting puts out ===large amounts of static electricity, also. === ===RJ === ==="DoN. Nichols" wrote in message ... === In article , === Richard J Kinch wrote: === George E. Cawthon writes: === === So just add that to the pressure of the === propane which someone suggest was at least 200 psi === === No, more like 26 psi (0 deg F), 122 psi (70 deg F), or 190 psi (100 deg ===F). === === I suppose now someone will ask, "hey, can I use my propane tank to run my === air tools without a compressor?" === === Sure -- until the first spark. :-) === === A die grinder with front exhaust would be an interesting === experience -- outdoors. :-) === === Something else -- indoors -- might be the last thing you do. === === Or -- a die grinder with rear exhaust would really call for === Nomex work clothes. :-) === === Enjoy, === DoN. === === -- === Email: | Voice (all times): (703) 938-4564 === (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html === --- Black Holes are where God is dividing by zero --- === Visit my website: http://www.frugalmachinist.com Opinions expressed are those of my wifes, I had no input whatsoever. Remove "nospam" from email addy. |
#83
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Initial fill of new Propane tank fact or fiction on purge needed
Eastern North Carolina.
RJ "Roy" wrote in message ... And just where might this fellow be located? I am looking for a l;arger propane tanke and so is my friend, to use for a compressor tank. No one around this area will sell a tank unless its new. Any used tanks larger than 100# that gas companies have are always scraped or refurbed and rented out. On Wed, 24 Dec 2003 10:08:43 -0500, "Backlash" wrote: ===Interesting thing I saw with my own eyes..I went with a buddy to purchase a ===used propane tank one Saturday morning about a month ago. We are under the ===impression from a source that the tank is left over from a tobacco bulk barn ===operation. When we get to the place, I could not believe my eyes! It turned ===out to be a guy who recycles used propane tanks, and he had at least a ===couple acres of tanks of all shapes and sizes, from camper tanks to ===multi-thousand gallon ones. As we got out of the truck, we noticed several ===tanks about 100 feet away with 3 inch holes burned in them with a cutting ===torch, just sitting there slowly burning off the residual fumes in the tank. ===Needless to say, this made us rather uneasy. Upon talking to the guy, he ===told us he had been doing this for over 20 years, and had never had an ===injury or serious incident. He said as the first penetration is made, there ===is a whoosh from the tank, then it subsides to a slow burn. They do this all ===day, every day. === My buddy bought a used 350 gallon tank from him for $100 and we went on ===our way. 123 tanks were $30, and 100 pounders were $10, He throws a ===regulator in on the deal if he has one at the time. I checked with a local ===gas company about him and the response was "Yeah, he does all our excess ===tanks, and everybody else's around". I asked the requirements on them ===filling a tank like that on home delivery, and all they required was a bill ===of sale or a receipt to prove ownership of the tank, which around here also ===gets you a 5 cent discount per gallon. As a side note, I purged a 123 gallon ===tank and used it with a relief valve and a bottom drain for an extra ===capacity air tank on my sandblasting rig for about 5 years with no problems. ===The mercaptan smell went away after a little usage. Sandblasting puts out ===large amounts of static electricity, also. === ===RJ === ==="DoN. Nichols" wrote in message ... === In article , === Richard J Kinch wrote: === George E. Cawthon writes: === === So just add that to the pressure of the === propane which someone suggest was at least 200 psi === === No, more like 26 psi (0 deg F), 122 psi (70 deg F), or 190 psi (100 deg ===F). === === I suppose now someone will ask, "hey, can I use my propane tank to run my === air tools without a compressor?" === === Sure -- until the first spark. :-) === === A die grinder with front exhaust would be an interesting === experience -- outdoors. :-) === === Something else -- indoors -- might be the last thing you do. === === Or -- a die grinder with rear exhaust would really call for === Nomex work clothes. :-) === === Enjoy, === DoN. === === -- === Email: | Voice (all times): (703) 938-4564 === (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html === --- Black Holes are where God is dividing by zero --- === Visit my website: http://www.frugalmachinist.com Opinions expressed are those of my wifes, I had no input whatsoever. Remove "nospam" from email addy. |
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