This is a First--acetylene torch--LEAKS!! - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 27 Old 05-12-2019, 12:32 PM Thread Starter
Senior MTF Member
 
Join Date: Jun 2016
Location: michigan
Posts: 324
This is a First--acetylene torch--LEAKS!!

After 45 years I never had this happen and this is a newer tank also---I was working in garage welding and grinding got all done went to shut off tanks and WOW!! burnt my palm BAD! I have the shape of the round handle in my palm blistering alot---There was flame coming out of under the handle heated it up and I did not see it and it got handle HOT--

I am taking tank back tomorrow for sure,, Theres no way to adj. anything on the handle I looked, And newer tanks to boot,,

Just thought I,d post this

62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy
Durfman is offline  
Sponsored Links
Advertisement
 
post #2 of 27 Old 05-12-2019, 03:57 PM Thread Starter
Senior MTF Member
 
Join Date: Jun 2016
Location: michigan
Posts: 324
Re: This is a First--acetylene torch--LEAKS!!

Quote:
Originally Posted by Durfman View Post
After 45 years I never had this happen and this is a newer tank also---I was working in garage welding and grinding got all done went to shut off tanks and WOW!! burnt my palm BAD! I have the shape of the round handle in my palm blistering alot---There was flame coming out of under the handle heated it up and I did not see it and it got handle HOT--

I am taking tank back tomorrow for sure,, Theres no way to adj. anything on the handle I looked, And newer tanks to boot,,

Just thought I,d post this
Oh, just wonder if the tank could blow up?? I did not know weather to shut off valve with a rag or Run???

62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy
Durfman is offline  
post #3 of 27 Old 05-12-2019, 04:30 PM
2000 Posts and climbing!!!
 
Join Date: Apr 2016
Location: Alberta
Posts: 2,345
Barn
Re: This is a First--acetylene torch--LEAKS!!

Well, presumably you've shut the valve since this happen, but I suppose it was possible.

I would suggest you
-leave the tank outside until you can exchange it for another one
-you may want to get some kind of spark arrestor in your torch head, or change your procedure for closing off the valves on the torch head so flame doesn't go into the head, or try to figure out how the leak caught on fire (perhaps grinding sparks?)

It worked out not great for you (you burned your hand), but it could have gone worse if you didn't find the leak and more gas had built up in your garage...
dave_r is offline  
Sponsored Links
Advertisement
 
post #4 of 27 Old 05-12-2019, 04:47 PM
20,000 Posts & Climbing
 
Join Date: Jun 2009
Location: Sault Ste Marie, Ontario
Posts: 20,998
Re: This is a First--acetylene torch--LEAKS!!

That sucks! Hope the burn heals successfully.

Maximum tank pressure is 225 psi. It's not likely to blow up, but a leak, if ignited, can sure warm up the area, as you found out. That's a really good reason to put the gloves on when closing the valve.

I use propane for cutting. It requires natural gas tips for the torch, and there is a learning curve for getting the pressure and flame set right, but it costs a lot less. A 20 lb bottle will last as long as 3 or 4 large acetylene tanks. The down side is that you can't weld with propane.

Bob

Click for The Hydraulics Forum!

Sometimes you get on a roll, sometimes the roll gets on you.

In Service
MF GC2310, Husqvarna YTH20B42T

Down for Repairs
MF1655 w/ FEL, MF1655, MF12H, MF8H, MF7H
Spending too much time on MTF to work on my toys.
TUDOR is offline  
post #5 of 27 Old 05-12-2019, 04:52 PM
Proud Member of the 1K Club
 
Join Date: Mar 2015
Location: Missouri
Posts: 1,208
Re: This is a First--acetylene torch--LEAKS!!

You sure its a tank leak or a regulator to tank fitting not sealing? I have had fittings not seal over the years do to fitting distortion and bad tank valves. Static electricity will ignite any gas. Lets be careful out there and always disconnect and cap those tanks after each use. This may seam silly to some but if you have ever seen what damage a tank will do after the valve has been broken off even when strapped in a tank cart. Uncontrollable mini torpedo would best describe the results.
Ariens93GT20 is online now  
post #6 of 27 Old 05-12-2019, 05:11 PM Thread Starter
Senior MTF Member
 
Join Date: Jun 2016
Location: michigan
Posts: 324
Re: This is a First--acetylene torch--LEAKS!!

Quote:
Originally Posted by Ariens93GT20 View Post
You sure its a tank leak or a regulator to tank fitting not sealing? I have had fittings not seal over the years do to fitting distortion and bad tank valves. Static electricity will ignite any gas. Lets be careful out there and always disconnect and cap those tanks after each use. This may seam silly to some but if you have ever seen what damage a tank will do after the valve has been broken off even when strapped in a tank cart. Uncontrollable mini torpedo would best describe the results.
Its the valve for sure---Its black all under the round shape handle and theres this small slit looks like where the valve [shaft--rod] goes into the tank AND I looked under side of valve handle and seen the flame coming out of around the shaft before I got glove to shut it off, darn that handle was Hot!--Yep its valve

Heres photo I just took,,, my palm is really bad I know I,m whining but this took me by suprize
Attached Thumbnails
Click image for larger version

Name:	P5121330 (1024x768).jpg
Views:	29
Size:	306.7 KB
ID:	2376299   Click image for larger version

Name:	P5121334 (1024x768).jpg
Views:	30
Size:	290.0 KB
ID:	2376301   Click image for larger version

Name:	P5121335 (1024x768).jpg
Views:	29
Size:	267.4 KB
ID:	2376303  

62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy
Durfman is offline  
post #7 of 27 Old 05-12-2019, 05:12 PM Thread Starter
Senior MTF Member
 
Join Date: Jun 2016
Location: michigan
Posts: 324
Re: This is a First--acetylene torch--LEAKS!!

Quote:
Originally Posted by TUDOR View Post
That sucks! Hope the burn heals successfully.

Maximum tank pressure is 225 psi. It's not likely to blow up, but a leak, if ignited, can sure warm up the area, as you found out. That's a really good reason to put the gloves on when closing the valve.

I use propane for cutting. It requires natural gas tips for the torch, and there is a learning curve for getting the pressure and flame set right, but it costs a lot less. A 20 lb bottle will last as long as 3 or 4 large acetylene tanks. The down side is that you can't weld with propane.
Check out the photo,,I do use propane also have torch and oxy. hose set up for both.

62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy
Durfman is offline  
post #8 of 27 Old 05-12-2019, 05:18 PM
20,000 Posts & Climbing
 
Join Date: Jun 2009
Location: Sault Ste Marie, Ontario
Posts: 20,998
Re: This is a First--acetylene torch--LEAKS!!

Whining about something like that is understandable. Sorta puts a lot of projects on hold with one hand out of commission.

Bob

Click for The Hydraulics Forum!

Sometimes you get on a roll, sometimes the roll gets on you.

In Service
MF GC2310, Husqvarna YTH20B42T

Down for Repairs
MF1655 w/ FEL, MF1655, MF12H, MF8H, MF7H
Spending too much time on MTF to work on my toys.
TUDOR is offline  
Old 05-12-2019, 05:18 PM
Durfman
This message has been deleted by Newsman. Reason: Duplicate after merging threads
post #9 of 27 Old 05-12-2019, 05:50 PM
Proud Member of the 1K Club
 
Join Date: Aug 2016
Location: Northern Florida (Almost Alabama)
Posts: 1,061
Re: Acetylene Tank Valve Leak [photo]--burnt hand

Good thing it was only a burnt hand!!!
Do you have check valves at the torch handle? If not, it may have been that and not the bottle.
Flaken is online now  
post #10 of 27 Old 05-12-2019, 05:52 PM Thread Starter
Senior MTF Member
 
Join Date: Jun 2016
Location: michigan
Posts: 324
Re: Acetylene Tank Valve Leak [photo]--burnt hand

Quote:
Originally Posted by Flaken View Post
Good thing it was only a burnt hand!!!
Do you have check valves at the torch handle? If not, it may have been that and not the bottle.
Yep I have flash-back [check valves]

62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy
Durfman is offline  
post #11 of 27 Old 05-12-2019, 05:53 PM
Senior MTF Member
 
dave2280's Avatar
 
Join Date: May 2013
Location: md
Posts: 215
Re: Acetylene Tank Valve Leak [photo]--burnt hand

Surprised you couldn't smell it leaking. Had hoses at fittings, o rings in the tips and fire burning inside the tips, but never a cylinder leaking. The valve is supposed to be turned out full to seal, but the stem packing nut should take care of that. I would tighten the stem packing nut. Most our acetylene need a square wrench rather than a round handle

"We all know that light travels faster than sound. That's why certain people appear bright until you hear them speak."
dave2280 is offline  
post #12 of 27 Old 05-12-2019, 05:54 PM Thread Starter
Senior MTF Member
 
Join Date: Jun 2016
Location: michigan
Posts: 324
Re: This is a First--acetylene torch--LEAKS!!

Quote:
Originally Posted by Ariens93GT20 View Post
You sure its a tank leak or a regulator to tank fitting not sealing? I have had fittings not seal over the years do to fitting distortion and bad tank valves. Static electricity will ignite any gas. Lets be careful out there and always disconnect and cap those tanks after each use. This may seam silly to some but if you have ever seen what damage a tank will do after the valve has been broken off even when strapped in a tank cart. Uncontrollable mini torpedo would best describe the results.
And I do have flash-back [check valves] on torches too so it was grinding spark is all I can think of.

62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy
Durfman is offline  
post #13 of 27 Old 05-12-2019, 05:56 PM Thread Starter
Senior MTF Member
 
Join Date: Jun 2016
Location: michigan
Posts: 324
Re: Acetylene Tank Valve Leak [photo]--burnt hand

Quote:
Originally Posted by dave2280 View Post
Surprised you couldn't smell it leaking. Had hoses at fittings, o rings in the tips and fire burning inside the tips, but never a cylinder leaking. The valve is supposed to be turned out full to seal, but the stem packing nut should take care of that. I would tighten the stem packing nut. Most our acetylene need a square wrench rather than a round handle
I thought that too but theres no packing nut I can see? just this small rectangle slit on side by the bottom of valve by tank

62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy
Durfman is offline  
post #14 of 27 Old 05-13-2019, 12:01 AM
20,000 Posts & Climbing
 
Join Date: Jun 2009
Location: Sault Ste Marie, Ontario
Posts: 20,998
Re: Acetylene Tank Valve Leak [photo]--burnt hand

Quote:
Originally Posted by dave2280 View Post
Surprised you couldn't smell it leaking. Had hoses at fittings, o rings in the tips and fire burning inside the tips, but never a cylinder leaking. The valve is supposed to be turned out full to seal, but the stem packing nut should take care of that. I would tighten the stem packing nut. Most our acetylene need a square wrench rather than a round handle
Incorrect!

Oxygen bottle valves need to be fully open to prevent the pressure from getting behind the valve disc and jamming it so that it can't be closed.

Fuel gas valves are to be opened no more than 1/4 turn so that in an emergency, the fuel gas can be cut off with a flick of the wrist.

The difference is in the relative pressures, 2200 psi for oxygen and 225-250 psi for fuel gasses.

Don't think that that is open enough? I run a 40K BTU heating torch with the propane valve usually open less than 1/8 turn, the same as for the 60K BTU barbeque. Cutting torches use a lot less fuel gas than heating torches or appliances.

Acetylene, natural gas, and propane all come under the general heading of fuel gases.

Bob

Click for The Hydraulics Forum!

Sometimes you get on a roll, sometimes the roll gets on you.

In Service
MF GC2310, Husqvarna YTH20B42T

Down for Repairs
MF1655 w/ FEL, MF1655, MF12H, MF8H, MF7H
Spending too much time on MTF to work on my toys.
TUDOR is offline  
post #15 of 27 Old 05-13-2019, 07:38 AM Thread Starter
Senior MTF Member
 
Join Date: Jun 2016
Location: michigan
Posts: 324
Re: Acetylene Tank Valve Leak [photo]--burnt hand

Quote:
Originally Posted by TUDOR View Post
Incorrect!

Oxygen bottle valves need to be fully open to prevent the pressure from getting behind the valve disc and jamming it so that it can't be closed.

Fuel gas valves are to be opened no more than 1/4 turn so that in an emergency, the fuel gas can be cut off with a flick of the wrist.

The difference is in the relative pressures, 2200 psi for oxygen and 225-250 psi for fuel gasses.

Don't think that that is open enough? I run a 40K BTU heating torch with the propane valve usually open less than 1/8 turn, the same as for the 60K BTU barbeque. Cutting torches use a lot less fuel gas than heating torches or appliances.

Acetylene, natural gas, and propane all come under the general heading of fuel gases.
Tudor you surprise me at times--I agree but when you watch these shows on TV when there using torches they open them ALL the way?? [Wrong] I was taught in school to open little like you said but they must have forgot that part now-a-days???

62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy
Durfman is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
318 Hydraulic Coupler Leaks KG46423 John Deere Forum 6 02-01-2019 12:36 AM
Torch components chaosracing Welding, Metalwork, and Fabricating 6 12-28-2018 02:29 PM
Propane Torch Cart LLigetfa Backyard Round Table - L & G Tractor Related Topics 3 04-27-2018 09:35 AM
Buy or lease torch tanks? c5rulz Welding, Metalwork, and Fabricating 25 04-11-2018 11:16 AM
318 Surging and oil leaks chip's John Deere Forum 70 05-11-2015 05:09 PM

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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome