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Old 03-13-2012, 01:32 AM   #1
The_Dtrain
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Default Brew-Stand Build - gas fittings

Greetings!

So I almost got my single-tier stand finished. :rocking: I'm working on the black-pipe right now. The issue I'm having is connecting my 1/2" flexible pipe to orifice of the burner. The burner orifice is 3/8" flare (male) but the flexible tubing is 1/2" flare (female). I cannot find reducing fitting or adapter to connect the two.

I know that I can get a 3/8" flare flex tubing but I think that will cut down on the gas flow to the burners (I have 10" banjo burners that I will be converting to NG soon).

Any suggestions on connecting the 1/2" flare (female end) to the 3/8" flare (male)?

Thanks,
Dtrain


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Old 03-13-2012, 01:43 AM   #2
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Have you looked at the size of the gas orifice on the burner? That hole is freaky small. The ID of 3/8" flex line looks like a humongous fire hose by comparison...

Cheers!


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Old 03-13-2012, 01:47 AM   #3
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Can you remove the 3/8" flare fitting from the orifice? If so the other end is probably a pipe thread which you can find an adapter to go to 1/2". Otherwise, You'll have to go with 3/8 flex. I've worked with plumbing and with gas fittings for years and never run into a flare to flare adapter.
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Old 03-13-2012, 02:14 AM   #4
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The 3/8" flare fitting looks like this and is important for the burner. I don't know if there is one that has a 1/2" flare on it.
Click image for larger version

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Old 03-13-2012, 05:21 AM   #5
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Go ahead and run the 3/8" from your 1/2" manifold to the burner, the 3/8" flare to 1/2" NPT adapters are easy to find. You'll be fine.

Or, you can try looking here. These guys are my "go to" for gs plumbing.

You'll probably have to go with a half union, coupler, half union combo to bypass the issue though.

http://www.suremarineservice.com/PlumbingFittings.aspx
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Old 03-13-2012, 02:18 PM   #6
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Personally I'd get a different hose. You're just adding more potential for gas to leak when you keep adding joints.

Otherwise you'll have to fit a FFL x FFL reducing coupling or a couple adapters. Seems like a lot more hassle than just replacing the hose.
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Old 03-13-2012, 04:35 PM   #7
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1/4" hose works just fine. Look at the size of the orifice and then tell me you're worried about restrictions....
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Old 03-13-2012, 04:38 PM   #8
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Note: hose in photos is for illustration only and is not gas rated. You want to use 350 psi CGA hose
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Old 03-13-2012, 05:15 PM   #9
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Where did you find that FFL-MFL elbow? I'd love to get my hands on a couple of those!


Cheers!
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Old 03-13-2012, 05:18 PM   #10
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Quote:
Originally Posted by day_trippr View Post
Where did you find that FFL-MFL elbow? I'd love to get my hands on a couple of those!

Cheers!
Like Karl said...
http://www.suremarineservice.com/PlumbingFittings.aspx


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