hard line to AN fitting
I know of 2 good ways to convert a hard tube to a flare fitting. I have a local hose and rubber shop that will braze on flare fittings for practically nothing. That would be my first choice.
If you want to do it yourself you are going to want to use a compression fitting to flare adapter. There are a bunch of companies that make them (Parker, Swagelok, Brennan). The tube that you are connecting to will need to be in pretty good shape to get a good seal.
Here is one on Amazon, you can also get them in brass if you don't want to splurge on a stainless fitting:
"Ham-Let Stainless Steel 316 Let-Lok Compression Fitting, Adapter, Tube OD x 37 Degree Flare"
If you want to do it yourself you are going to want to use a compression fitting to flare adapter. There are a bunch of companies that make them (Parker, Swagelok, Brennan). The tube that you are connecting to will need to be in pretty good shape to get a good seal.
Here is one on Amazon, you can also get them in brass if you don't want to splurge on a stainless fitting:
"Ham-Let Stainless Steel 316 Let-Lok Compression Fitting, Adapter, Tube OD x 37 Degree Flare"
Here is another great option:
http://www.purechoicemotorsports.com...rod/prd324.htm
The Pure Choice mates a SAE 45 degree flare and converts it to AN-6. Most of us can easily do 45 degree double flares which are most appropriate for automotive use.
Andrew
http://www.purechoicemotorsports.com...rod/prd324.htm
The Pure Choice mates a SAE 45 degree flare and converts it to AN-6. Most of us can easily do 45 degree double flares which are most appropriate for automotive use.
Andrew
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Teching In
Joined: Feb 2014
Posts: 49
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From: Sequim, Wa.
http://www.summitracing.com///parts/AER-FBM3671
http://www.summitracing.com/parts/AER-FBM3675
Your best bet is a 37 degree flare tool and a tube nut and sleeve. I recently purchased this flare tool from amazon and have been very pleased with it:
Your best bet is a 37 degree flare tool and a tube nut and sleeve. I recently purchased this flare tool from amazon and have been very pleased with it: Amazon.com: Rothenberger 26032 RoFlare 37-Degree Single Compact Flaring Tool, 3/16 to 5/8-Inch: Home Improvement
Andrew
The compression fittings can work ok. I used them when I re-plumbed my system. The problem is that they were never designed for automotive use and can loosen with the vibrations of the automotive environment. This happened to me. The 45 degree flare to AN -6 adapter won't have that problem.
Andrew
Andrew
Andrew while I agree the 37 degree flare wasn't originally intended for auto use it is certainly capable. We utilize it daily on oilfield equipment with much higher pressures and vibration than an auto application would see. I am curious what your reservations are?
We use the Swedgeloks in the refinery business, never had a fitting failure that I can recall. We did lose a few lines to corrosion, PerChlorEthylene is not SS friendly, but nothing will last with that stuff!
However, most people don't own 37 degree tools, and good ones are fairly expensive. Comparatively, 45 degree tools are common and most shade tree mechanics probably already own one, which makes the Pure Choice fitting a great options.
Andrew
