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Ford 9N, 2N & 8N Discussion Forum
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o.t. flaring copper tubing

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philm

11-28-2007 06:06:05




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I need to extend the 3/8 inch copper tubing from my propane tank, at home, as I am relocating the tank.
I will be splicing a length of tubing to my existing line.
The question is, do I double flare the tubing or use a single flare?




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tatanka

11-28-2007 12:54:56




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 Re: o.t. flaring copper tubing in reply to philm, 11-28-2007 06:06:05  
Dont use Compression fittings for the splice. Its not used for gases in the industry for propane. I would disconnect the line, let it breath for a while, solder on the extended piece
I used refrigeration solder(not soft solder) It has a higher tensile strength. FInd you a A?C guy and he can do it cheap. FlARE THE END FOR THE TANK CONNECTION. Leak check the connections with soap bubbles.



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gahorN

11-28-2007 11:53:18




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 Re: o.t. flaring copper tubing in reply to philm, 11-28-2007 06:06:05  
If you're putting copper-to-copper, why don't you just use a compression-union and be done with it?



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Jack L

11-28-2007 08:20:24




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 Re: o.t. flaring copper tubing in reply to philm, 11-28-2007 06:06:05  
Single flare is all that is necessary and you should use the short flare nuts instead of the long ones. That's what the propane companies use in our area of upstate NY. Seems water gets behind the collar on the long flare nuts and when it freezes, it splits the flare nut.

I used long flares inside my cabin that I got from Home Depot and ended up replacing three of them from splitting. No ice but apparently I over torqued them with 6 and 8 inch adjustable wrenches. The cracks appeared later not immediately.

HTH
Jack

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john hunt

11-28-2007 07:52:36




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 Re: o.t. flaring copper tubing in reply to philm, 11-28-2007 06:06:05  
have done right.... call gas company out and have do they all the right part.. don't mickey mouse it



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soundguy

11-28-2007 06:12:59




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 Re: o.t. flaring copper tubing in reply to philm, 11-28-2007 06:06:05  
Are you cutting the pipe and splicing in a piece.. or buying a union and adding a piece to the end.. I'd personally go that way.... either way yo will need the flair union etc..

Soundguy



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philm

11-28-2007 07:02:28




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 Re: o.t. flaring copper tubing in reply to soundguy, 11-28-2007 06:12:59  
I will be adding a piece between the pressure regulator and the existing pipe.



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Ken(Ark)

11-28-2007 07:24:50




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 Re: o.t. flaring copper tubing in reply to philm, 11-28-2007 07:02:28  
I have stayed in a holiday inn BUT I am no expert . I dont recall every seeing a double flare in copper , I dont think the soft metal will double back very well .

I have seen a lot of single flares and compression fitting on copper . Take a spray bottle with some lightly soapy water and spray on the connection once it is hooked up to see if it bubbles either way you go .



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