Hello,

I am making a propane burner for a small forge, and I had a couple questions that I can't find answers to on Google.

I am using this equipment arranged in this order:

20 lb tank - Adjustable Propane Regulator 0-60 psi - Hose - Shutoff Valve - Burner

Would I benefit from adding a needle valve either before or after the shutoff valve? Would it be redundant because of the regulator?

Also, I'm using a #61 sized oriface. Should I use a high pressure regulator? My gut says yes, but I don't want to get something too big and it doesn't work because it's too much.

Thanks


Quote 0 0


jmccustomknives
You should run a secondary valve on this for safety and added adjustments.
Here's a pic of my set up.  You'll note the valve at the burners.  I can adjust the flow at both the regulator and using the valve.  Like if I just want to idle the forge I can turn the valve down (at least until it starts pulsing.)
IMG_0616.JPG 

Rule #10;  "I can make that" translates to; "I'm to cheap to buy it new."

Quote 0 0
Hank Rearden
Here's a link to a YouTube video I posted in a claying forge post to help create a refractory cement for my coal forge. I remember he made burners from plumbing supplies. I'm not sure I would risk a gas explosion. He did talk about what size hole he drilled. That might help you with your project.
I hope to have a gas forge sometime next year. So I would appreciate a post of how you did yours as you work things out.

http://www.theironforgefire.com/post/claying-or-using-a-hi-temperature-refractory-cement-7206514?highlight=coffee&pid=1285401616#post1285401616
code[Maglio.gif]  Keep the fires burning hot!
2020 ABANA Conference in Sarasota New York. June 3rd. through June 6th. Plan now!
Quote 0 0
jmccustomknives
I forgot the most important reason for the valve.  Starting the forge.  To start mine I use one of those long lighters, crack the valve and light the top of the burner then slowly open the valve.  The flame gets pushed down the burner into the forge then I open the valve.

Rule #10;  "I can make that" translates to; "I'm to cheap to buy it new."

Quote 0 0
Greg A
That makes a lot of sense. I knew there had to be an advantage to having an adjustable valve near the burner. It seems safer and more functional

It's funny that you mentioned that video, because that's the same guy I'm basing a lot of my design on. My burner is esentially the same design as his, be accomplished with diferent parts. It's basically a beefier version of the hand held torches that most people own. I'm getting my oriface from a BBQ smoker parts company, (tejassmokers.com). I just got the standard size they sold, but they do custom sizing, so if mine is too large, I'll just buy another. I'd like to figure out the rate on flow based on the surface are of the oriface using mols of gas mixing and BTUs and such... I'm not good at science math.

There shouldn't be much danger of anything blowing up, as long as safety is observed. I'll test for leaks with soapy water, and that regulator will prevent any grave tragedy. Plus if you look on you tube, there are some pretty gnarly home made burners and they don't explode on film, so I think i'll be good.

I'm pretty sure on everything I'm going to use now, I just need to assemble everything else see how it goes. If it's not an embarrassing failure, I'll try and post some pictures. Thanks for the thoughts
Quote 0 0
Hank Rearden
I'm kicking some idea around as well. At this time I forge in the drive way.  So set up is about 1/2 an hour. Then time to get the fire going. A gas forge would give me more time actually forging until a build a shop out back. Even then. For now I take my lumps.  Weather and family have kept me inside the past few weekends and it's frustrating. I will forge tomorrow if it doesn't rain after work.  I'm interested in seeing how you build it. I have ideas in my head and I'm looking for input from other's to refine the design. Jmccustomknives does great work with his forge. I was surprised at the red brick. So I'm probably over complicating things.

By the way, post failures as well. Best learning tool there is.

code[Maglio.gif]  Keep the fires burning hot!
2020 ABANA Conference in Sarasota New York. June 3rd. through June 6th. Plan now!
Quote 0 0
jmccustomknives
Lol, Hank.  Complimenting the big ugly[cool].  The red brick is just the "frame".  it is in not way touching the fire brick being insulated with 2 layers of Kaowool.

Greg, get that forge up and running.  Take a look at the Iron in the Pot.  I believe it will run into August, but at the rate the other guys are going we might have to push it back a bit. [rolleyes] 

Rule #10;  "I can make that" translates to; "I'm to cheap to buy it new."

Quote 0 0
Hank Rearden
Glad to see you named it JMC:> The Backwoodsman Magazine has an ad for the Iron in the Pot in the July and August. So moving it back is possible.

Greg you welcome to join in.
code[Maglio.gif]  Keep the fires burning hot!
2020 ABANA Conference in Sarasota New York. June 3rd. through June 6th. Plan now!
Quote 0 0
Greg A
Thanks guys. I'm trying to get this thing running as soon as possible. I'm not sure when that will be, because I live in an apartment, so I've gotta go elsewhere if I'm gonna start a fire. But I'll be moving soon, so I'm looking for a place with at least a outside space for tinkering. What is the Iron in the Pot? All my google searches were fruitless.
Quote 0 0
Hank Rearden
Our Iron in the pot is pretty simple. Make something. Post how you do it on the forum. What worked, what didn't any problems and how you solved them. If you're stumped ask question and other will give you advice. Hopefully useful advice.

Learn more here http://ironinthepot.wordpress.com/iron-in-the-pot-registration-form/

You already signed up on the forum so your half way there already. It takes me awhile to set up a forum for your project so I ask for 24-48 hours of patience to get you set up.  Then make you post.
code[Maglio.gif]  Keep the fires burning hot!
2020 ABANA Conference in Sarasota New York. June 3rd. through June 6th. Plan now!
Quote 0 0