[TheForge] Re: RE: Petrogen Torch Yak

Woolley wjande at erols.com
Fri Aug 20 00:45:52 EDT 2004 

Hi,
The only time I got  close to one was when I worked at USX  Fairless 
Works PA on a blast furnace overhaul with the boilermakers 10-12 years 
ago.  The ironworkers were going to use it to cut the stem of the bell 
valve at the top of the furnace to renew.  By the time I made my first 
appearance at that sight it was a hellish place.  Years of neglect had 
really dessimated  pretty much everything in sight .  I had worked in 
some pretty old, dangerous environments before then but that place took 
the cake.  I couldn't wait to get off of that job.

Cheers,
Bill Woolley


Larry and Pat Brown wrote:

>
> Cutting a hole in the wall or floor of the shop?
> A really big sparkler!
>
>  A friend of mine was a diver and used to use something like these to 
> burn metal parts away under water
>
> L Brown
>
>
>
> At 11:43 AM 8/19/2004 -0400, you wrote:
>
>> Hello,
>>
>> I know I'm way late on this thread but  I was just curious, what 
>> would anyone working a small( pick a size) smithy, fab shop, possibly 
>> use an air lance for?
>>
>> Regards,
>> Bill Woolley
>>
>>
>>
>> debmiller at fuse.net wrote:
>>
>>> The petrogen is only for cutting. The one of the other emails in 
>>> this thread listed another version that could cut and weld.
>>>
>>> Ray Miller
>>> Cincinnati
>>>
>>>
>>>> From: "Rafter Lazy C" <rick at rafterlazyc.com>
>>>> Date: 2004/08/19 Thu AM 07:51:58 EDT
>>>> To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>>>> Subject: Re: [TheForge] Re: RE: Petrogen Torch Yak
>>>>
>>>> Hello guys -
>>>>
>>>>    I was wondering whether these gasoline torches would be able to 
>>>> gas weld
>>>> the same as an oxy-acetylene?  Does anyone have knowledge of this?  
>>>> I have
>>>> been thinking about replacing my old torch and the gasoline doesn't 
>>>> sound
>>>> bad, but I need to be able to weld with my torch also.
>>>>
>>>> Rick Crawford at Rafter Lazy C
>>>> Home of Smoky Forge and Lem the Wonder Mule
>>>>
>>>> ----- Original Message ----- From: <debmiller at fuse.net>
>>>> To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>>>> Sent: Tuesday, August 17, 2004 6:47 AM
>>>> Subject: [TheForge] Re: RE: Petrogen Torch Yak
>>>>
>>>>
>>>>
>>>>
>>>>> My understanding of the petrogen torch is that it was developed 
>>>>> for the
>>>>>
>>>> Department of Energy for use in the dismantling of nuclear weapons 
>>>> sites,
>>>> like Fernald, etc. I have not personally used one but had previously
>>>> reviewed their performance for possible purchase by GE for use in 
>>>> large
>>>> scale demolition projects. We were taking down 50 plus year old 
>>>> building
>>>> with thick steel plate shielding, 3 foot thick concrete walls that 
>>>> were
>>>> almost solid rebar, etc.
>>>>
>>>>
>>>>> The cutting speeds are incredible, fuel costs are(were) cheap and the
>>>>>
>>>> cutting capacity is unbelievable. I will see if I can dig up the 
>>>> DOE site
>>>> that had a pdf file of an extensive study performed comparing the 
>>>> petrogen
>>>> to acetylene.
>>>>
>>>>
>>>>> As far as safety, gasoline is not flammable, only the vapors. So 
>>>>> the unit
>>>>>
>>>> keeps the fuel in liquid form all the way up to the mixing chamber 
>>>> in the
>>>> torch head. Then it is vaporized and mixed with O2 and baby does it 
>>>> burn.
>>>> Gasoline is 125,000 BTU/gallon!!!!
>>>>
>>>>
>>>>> That's a ton of heat!!
>>>>>
>>>>> Ray Miller
>>>>> Cincinnati
>>>>>
>>>>>
>>>>>> From: "Michael H. Murphy" <blacksmith at comcast.net>
>>>>>> Date: 2004/08/16 Mon PM 06:00:05 EDT
>>>>>> To: "'Sponsored by ABANA'" <theforge at mailman.qth.net>
>>>>>> Subject: RE: [TheForge] allstate oxy-propane torch
>>>>>>
>>>>>> After reading through this whole thread (and getting some good 
>>>>>> info out
>>>>>>
>>>> of
>>>>
>>>>
>>>>>> it), I figured this one would really get everyone going.  N.B. I've
>>>>>>
>>>> never
>>>>
>>>>
>>>>>> tried it, nor talked to anyone who has, so I'm not claiming 
>>>>>> anything.
>>>>>>
>>>>>> http://www.petrogen.com/
>>>>>>
>>>>>> Murf
>>>>>>
>>>>>>
>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: theforge-bounces at mailman.qth.net [mailto:theforge-
>>>>>>> >>>>>bounces at mailman.qth.net] On Behalf Of Bruce Freeman
>>>>>>> Sent: Monday, August 16, 2004 3:35 PM
>>>>>>> To: theforge at mailman.qth.net
>>>>>>> Subject: Re: [TheForge] allstate oxy-propane torch
>>>>>>>
>>>>>>> I went to the site and found the table.  I did not find any
>>>>>>>
>>>> explanation
>>>>
>>>>
>>>>>>> of what they MEAN by oxygen to fuel gas ratio.  As I and others 
>>>>>>> have
>>>>>>> pointed out, it certainly is not the stoichiometry of the 
>>>>>>> respective
>>>>>>> reactions.  It may be "correct", but we have to know what it 
>>>>>>> means to
>>>>>>> judge that.
>>>>>>>
>>>>>>> Bruce
>>>>>>> NJ
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>>> "terry l. ridder" <terrylr at blauedonau.com> 8/16/2004 3:16:48 AM
>>>>>>>>>>
>>>>>>>>>>
>>>>>>> hello;
>>>>>>>
>>>>>>> no the table is correct:
>>>>>>> reference for the table are:
>>>>>>>
>>>>>>> twi world centre for materials joining technology
>>>>>>> oxyfuel cutting - process and fuel gases
>>>>>>> http://www.twi.co.uk/j32k/protected/band_3/jk49.html
>>>>>>>
>>>>>>> the usa affiliate is edison welding institute at www.ewi.org
>>>>>>>
>>>>>>> college chemistry book
>>>>>>>
>>>>>>> every one   carbon  atom needs 2 oxygen atoms to form CO2.
>>>>>>> every two hydrogen atoms  need 1 oxygen  atom to form H2O.
>>>>>>>
>>>>>>> propane == C3H8
>>>>>>> oxygen  == O2
>>>>>>>
>>>>>>> C3H8(g) + (5)O2(g) == (3)CO2(g) + (4)H20(g)
>>>>>>>
>>>>>>> the above equation is balanced.
>>>>>>>
>>>>>>> acetylene == C2H2
>>>>>>> oxygen    == O2
>>>>>>>
>>>>>>> C2H2(g) + (2.5)O2(g) = (2)CO2(g) + H2O(g)
>>>>>>>
>>>>>>> the above equation is balanced.
>>>>>>>
>>>>>>> propylene == C3H6
>>>>>>> oxygen    == O2
>>>>>>>
>>>>>>> C3H6(g) + (4.5)O2(g) = (3)CO2(g) + (3)H2O(g)
>>>>>>>
>>>>>>> the above equation is balanced.
>>>>>>>
>>>>>>> On Sun, 15 Aug 2004, James Binnion wrote:
>>>>>>>
>>>>>>> james> Terry your chart is wrong or has a typo.
>>>>>>> james>
>>>>>>> james> Acetylene:
>>>>>>> james> Theoretical Oxygen Ratio,  by  volume 2.5 : 1
>>>>>>> james> Torch Oxygen Ratio, by Volume 1.1 : 1
>>>>>>> james>
>>>>>>> james> Propane:
>>>>>>> james> Theoretical Oxygen Ratio,  by  volume 5 .0: 1
>>>>>>> james> Torch Oxygen Ratio, by Volume  3.5 : 1
>>>>>>> james>
>>>>>>> james> Source for Torch Oxygen Ratio, by Volume
>>>>>>> james> Oxygen Cutting; Meyer; Green et. al.; Welding Handbook, 
>>>>>>> Vol. 2,
>>>>>>> 8th
>>>>>>> james> ed., pg. 454,  American Welding Society
>>>>>>> james>
>>>>>>>
>>>>>>> -- 
>>>>>>> terry l. ridder ><>
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