Oxygen Acetylene Settings - Tools & Equipment - Contractor Talk

Oxygen Acetylene Settings

 
Thread Tools Search this Thread Display Modes
Old 03-18-2014, 08:19 PM   #1
Pro
 
MJconstruction's Avatar
 
Trade: Carpentry
Join Date: Jun 2013
Posts: 136
Rewards Points: 151

Oxygen Acetylene Settings


I tried searching for threads and came up with nothing so I'm trying here. I have to dismantle a air handler this week and generally stick to commercial carpentry but I'll have to use a torch to cut it up. I have used torches before but have never had to set the regulators. I have read all over different numbers and my buddy told me 7 for acetylene and 11 for oxygen. Then I read almost 40 for oxygen and ten for acetylene. Anyone have some advice for what you have your regulators set at. And any tips would be much appreciated.
MJconstruction is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 03-18-2014, 08:43 PM   #2
Contractor
 
tgeb's Avatar
 
Trade: Excavation, Foundation, Professional Painter!
Join Date: Feb 2006
Location: Maryland
Posts: 6,323
Rewards Points: 976

Re: Oxygen Acetylene Settings


Try a look at this, there is a chart a little ways down the web page.

http://weldingweb.com/showthread.php...ator-pressures


I don't have a lot of experience with cutting and welding either, I just adjust the flame till it looks pretty, and hope for the best.

From my brief read of the link, having a properly sized torch set up can effect the production.

Advertisement

__________________
Tom

www.gebcon.com
tgeb is offline  
Old 03-18-2014, 08:46 PM   #3
Pro
 
TimelessQuality's Avatar
 
Trade: GC/Remodeling
Join Date: Sep 2007
Location: Central America (Kansas)
Posts: 4,732
Rewards Points: 1,730

Re: Oxygen Acetylene Settings


^^^^ what Tom said

That's a great forum with a lot of good info on all aspects of welding/cutting.
__________________
-Steve

'It takes considerable knowledge just to realize the extent of your own ignorance.'-Thomas Sowell
TimelessQuality is offline  
The Following User Says Thank You to TimelessQuality For This Useful Post:
tgeb (03-18-2014)
Sponsored Links
Advertisement
 
Old 03-18-2014, 09:22 PM   #4
Pro
 
HUI's Avatar
 
Trade: Utility, sitework, and erosion control contractor
Join Date: Jan 2011
Location: Plymouth, IN
Posts: 219
Rewards Points: 178

Re: Oxygen Acetylene Settings


I was told when I was in school it is when you start in the am. 7 and 30
HUI is offline  
Old 03-18-2014, 09:33 PM   #5
Pro
 
Anti-wingnut's Avatar
 
Trade: Commercial Superintendent
Join Date: Mar 2009
Posts: 2,931
Rewards Points: 3,414

Re: Oxygen Acetylene Settings


Quote:
Originally Posted by HUI View Post
I was told when I was in school it is when you start in the am. 7 and 30
I was taught 7 and 25
Anti-wingnut is offline  
Old 03-18-2014, 09:37 PM   #6
Pro
 
HUI's Avatar
 
Trade: Utility, sitework, and erosion control contractor
Join Date: Jan 2011
Location: Plymouth, IN
Posts: 219
Rewards Points: 178

Re: Oxygen Acetylene Settings


I usually turn it all up when I'm using a rose bud. But any of those numbers seem to be a good starting point
HUI is offline  
Old 03-18-2014, 09:43 PM   #7
Pro
 
Anti-wingnut's Avatar
 
Trade: Commercial Superintendent
Join Date: Mar 2009
Posts: 2,931
Rewards Points: 3,414

Re: Oxygen Acetylene Settings


Don't exceed 15 psi or you could cause an explosion
Anti-wingnut is offline  
Old 03-18-2014, 09:48 PM   #8
Registered User
 
tnt9324's Avatar
 
Trade: Excavation, Natural gas service work
Join Date: Mar 2014
Location: Montrose, PA
Posts: 1
Rewards Points: 10

Re: Oxygen Acetylene Settings


It really depends on what you are cutting. I've spent many hours behind a torch and what I have found to work the best is start at 5 and 10 psi and go up from there. That's a good setting for smaller gauge metal. Anything larger just slowly increase the pressures. There is no exact pressure you have to be at. One thing I will say for sure that if you are heating a piece and it seems like it is taking a long time for it to become molten, increase your acetylene, then increase your oxygen accordingly. Just experiment with it. You'll get the hang of it quick!
tnt9324 is offline  
The Following User Says Thank You to tnt9324 For This Useful Post:
tgeb (03-18-2014)
Old 03-18-2014, 11:21 PM   #9
Pro
 
Rustbucket's Avatar
 
Trade: Remodel/Deck
Join Date: May 2009
Location: Jackson, MS
Posts: 1,861
Rewards Points: 1,748

Re: Oxygen Acetylene Settings


As Anti-wing nut said, don't exceed 15psi on the acetylene side. When you open the tanks, open the oxygen all the way, but only crack the acetylene. 1 turn max. I usually go no more than 1/2 or 3/4.

Acetylene is very unstable, and can explode. I usually keep the acetylene regulator set below 10psi, and never go above 12psi. The 15psi Anyi-wing it mentioned seems about right for maximum safe working pressure.

Acetylene is unstable above 15 psi. It is dissolved in acetone and the cylinders are filled with a porous material to keep the gas stable at the 1700 or so psi that they are pressurized to. It can also become unstable if the tank is emptied too fast, such as when using a rosebud tip with a small tank, even if the pressure is below the limit. Never withdraw more than 1/15 of the volume of the tank per hour if using continuously, or 1/10 intermittent.

Also remember that oxygen can also be a dangerous gas. Never use it to blow off you clothes or anything else. It can cause spontaneous combustion. My dad worked on an oil rig in the late 60's, early 70's. One of the guys used the oxygen tank to blow off his coveralls after work and went inside to his quarters. When he sat down and lit a cigarette he went up on flames!
Rustbucket is online now  
Old 03-19-2014, 05:31 AM   #10
Pro
 
MJconstruction's Avatar
 
Trade: Carpentry
Join Date: Jun 2013
Posts: 136
Rewards Points: 151

Re: Oxygen Acetylene Settings


Thanks for all the advice I'll see how it goes today I am going to start at 5 and 25 it's mostly light metal.
MJconstruction is offline  
Old 03-19-2014, 09:20 PM   #11
Pro
 
pritch's Avatar
 
Trade: superintendent
Join Date: Nov 2008
Location: Coalville, Utah
Posts: 400
Rewards Points: 691

Re: Oxygen Acetylene Settings


Remember to always keep the acetylene tank standing upright, too! If you do have to lay it on it's side for whatever reason, stand it upright for at least a half-hour or so before using it.
__________________
My dad gave me concrete tools for my 18th birthday. 37 years later and I still haven't come up with a mean enough way to get him back.
pritch is offline  
Old 03-19-2014, 10:10 PM   #12
Pro
 
TimelessQuality's Avatar
 
Trade: GC/Remodeling
Join Date: Sep 2007
Location: Central America (Kansas)
Posts: 4,732
Rewards Points: 1,730

Re: Oxygen Acetylene Settings


Quote:
Originally Posted by pritch View Post
Remember to always keep the acetylene tank standing upright, too! If you do have to lay it on it's side for whatever reason, stand it upright for at least a half-hour or so before using it.
I've used them laying down a few times...

Can you share why that's wrong?
__________________
-Steve

'It takes considerable knowledge just to realize the extent of your own ignorance.'-Thomas Sowell
TimelessQuality is offline  
Old 03-20-2014, 06:22 AM   #13
Pro
 
HUI's Avatar
 
Trade: Utility, sitework, and erosion control contractor
Join Date: Jan 2011
Location: Plymouth, IN
Posts: 219
Rewards Points: 178

Re: Oxygen Acetylene Settings


As long as the axcelyne tank is up right a little you should be ok. If it is laid down too far you will acetone in your regulators
HUI is offline  
The Following User Says Thank You to HUI For This Useful Post:
TimelessQuality (03-20-2014)
Old 06-08-2014, 03:05 PM   #14
Registered User
 
tntframing's Avatar
 
Trade: carpentry
Join Date: Jun 2014
Location: md
Posts: 12
Rewards Points: 30

Re: Oxygen Acetylene Settings


Right now I'm set a 30/ 8 on my rig.

Advertisement

tntframing is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Why is wood rotting ? SKC Construction 47 05-27-2018 04:50 PM
Settings for Milwaukee model 4910 paint sprayer Camyankee Tools & Equipment 0 08-14-2012 09:20 PM
lime application spreader settings dale rex Landscaping 0 07-21-2012 03:13 PM
Facebook Settings? DaVinciRemodel Marketing & Sales 16 01-24-2010 09:38 AM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?