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Thread: R410-A flaring

  1. #1
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    Jun 2012
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    R410-A flaring

    I checked through some threads on the search but did not really find the answer.
    I had a class not to long ago and they said that the old flaring tools will not work. The flares will leak. The new flaring blocks flare at a 45* angle. Does anyone know what the old angle was? And can you use the new 45* angle for other refrigerants. It makes no sense since you do not pick up different flare nuts for different refrigerants. From other threads I am getting the impression you need to put more pipe through the flare block to fit on the face correctly. Also Grainger sells a Rigid that does single lap and double lap. Does anyone know what this means? Rigid P#345DL/150/33927. Grainger P# 4A518

    Thanks guys

  2. #2
    Join Date
    Sep 2002
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    720
    You have either 37 or 45 degree flares. I am assuming that what they mean by single or double lap is a single or double lipped flare. With the higher pressure of 410 a single flare would probably not be strong enough. Brake lines use a double flare due to the pressures. Just google double flare and there are lots to look at.

  3. #3
    Join Date
    Oct 2003
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    las vegas
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    1,505
    i may be wrong but ive never had any problems with a std. 45
    flare on 410. i have both 37 & 45 but only use the 37 on hydraulic
    flares which usually use an inverted flare nut.

  4. #4
    Join Date
    Dec 2009
    Location
    Bristol NH
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    229
    Quote Originally Posted by RichR View Post
    I checked through some threads on the search but did not really find the answer.
    I had a class not to long ago and they said that the old flaring tools will not work. The flares will leak. The new flaring blocks flare at a 45* angle. Does anyone know what the old angle was? And can you use the new 45* angle for other refrigerants. It makes no sense since you do not pick up different flare nuts for different refrigerants. From other threads I am getting the impression you need to put more pipe through the flare block to fit on the face correctly. Also Grainger sells a Rigid that does single lap and double lap. Does anyone know what this means? Rigid P#345DL/150/33927. Grainger P# 4A518

    Thanks guys
    You must have taken an LG class. They have been spewing this for years. The flaring tool you already have is probably 45*. Never seen 37* I think it is for hydraulics. The only difference with 410 is the width of the flair shoulder needs to be large enough. I think yellow jacket has a tool with a gauge for the hieght of the pipe to make sure. I fell for the whole "different" flair so many times. I also put a little dab of blue loctite so those flairs don't loosen with the vibration.




    Sent from my SCH-I500 using Tapatalk 2

  5. #5
    Join Date
    Jan 2001
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    Nebraska
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    319
    Hydraulic fittings are 37 if you try to flare steel tubing to 45 most of the time it would split on you, hence the shallower flare angle.

  6. #6
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    Apr 2011
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    Coastal Maine
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    Quote Originally Posted by boilerman856 View Post
    You must have taken an LG class. They have been spewing this for years. The flaring tool you already have is probably 45*. Never seen 37* I think it is for hydraulics. The only difference with 410 is the width of the flair shoulder needs to be large enough. I think yellow jacket has a tool with a gauge for the hieght of the pipe to make sure. I fell for the whole "different" flair so many times. I also put a little dab of blue loctite so those flairs don't loosen with the vibration.




    Sent from my SCH-I500 using Tapatalk 2
    Ditto on Boilerman's comments. I have been using a 20+ year old flaring tool on mini-splits since they came out. I haven't had a leak yet that wasn't self inflicted. LG was the ones spewing this garbage at their training and in their literature. Your fine.

  7. #7
    Join Date
    Jun 2012
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    Northeast
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    It was a Diakin class. And I bought the YJ 60278 today more due to needing something asap for the job. It is the self height model. It took alot of practice tries to start getting the hang of it. Very little pressure needed while turning. I actually ended up just counting the turns for the flare. Pressure testing tonight. I made 4 flares I'll write tomorrow if everything held. Thanks everyone.

  8. #8
    Join Date
    Jul 2012
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    Athens, GA.
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    410 flares 45° and wider. Hang your end out a little longer to match it up with fitting.

    JASON sent this from his DUMB-PHONE

  9. #9
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    May 2012
    Location
    Upper Michigan
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    3,588
    X2 for brake lines, ISO (double flare) brakes are 1000 psi or more if I remember right? Don't quote that it's been years since I was a certified brake tech.

  10. #10
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    Well she held 300# over night. Thanks for your help guys.

  11. #11
    Join Date
    Apr 2012
    Location
    new york
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    yellow jackets tool is designed for the 410a flare.Samsung ductless instructions talk about the difference of the flare.The flaring tool is worth every dollar it has multiple sizes and set the depth for you its almost too easy.Yellow Jacket 60278 Deluxe Deluxe 45 Flaring Tool check it out

  12. #12
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
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    14,914
    The newer flaring tools have a different type of cone that makes a MUCH nicer flare, with even wall thickness, and a nicely burnished sealing surface.

    Instead of just a solid cone that wedges its way into the pipe to stretch the flare out, they have lobes on the cone, and usually an eccentric motion, that roles the tubing out into shape.
    If more government is the answer, then it's a really stupid question.

  13. #13
    Join Date
    May 2009
    Location
    South of Heaven
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    1,131
    " Burnishing " I believe is the correct term. The " Red Handled Ritchie " has always done that ( Rotoflare as it was called ). The Blue handle tool turns a wider face for sure ( 410-A ) .

    Question : Do fuel oil guys have to " seek out " older tools for flaring ?

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