scarlo101
Silver Member
On my BX, I am plumbing in my loader valve. I am using 3/8"OD steel tubing lines with .035" wall. My question is do I need to double flare the ends? I am planning on using a single flare. Will that be sufficient? thanx
Hydraulic tubing
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CCWKen
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Unless that's stainless steel, I think you're pushing your luck on .035 wall tubing. Especially for a loader. (Think shock loads!) That's going to put your working pressure around 2000 psi or less. I would think .045 wall would be minimum on a loader with .069 prefered. But, I tend to overbuild. 
All hydraulic flares should be double. Are you using JIC fittings or SAE fittings? Keep in mind that JIC flares are 37* and SAE are 45*. The common flare tools are 45*. You need a special tool to do JIC flares. If it were me, I'd use brazed fittings on the ends of the tubing and eliminate the flares altogether. A flare becomes your weakest link and often cracks under vibration.
All hydraulic flares should be double. Are you using JIC fittings or SAE fittings? Keep in mind that JIC flares are 37* and SAE are 45*. The common flare tools are 45*. You need a special tool to do JIC flares. If it were me, I'd use brazed fittings on the ends of the tubing and eliminate the flares altogether. A flare becomes your weakest link and often cracks under vibration.
MJPetersen
Veteran Member
37 degree flare tools are the standard for aircraft hydraulic systems, so if you decide to go that way and need tools. Any Aircraft tool supply company will have the 37 degree tools. Flares with aluminum or steel tubing need to be double for hydraulics.
Do show pictures when you get it all put together.
Mike
Do show pictures when you get it all put together.
Mike
Wayne County Hose
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I make steel lines for my customers quite frequently. All my 3/8" tubing is seamless .049" wall. I wouldn't use anything less.
Master Cool makes a great double flare tool. It is a hand pump hydraulic unit. They are a little pricy, about $300, but well worth it. You can find them all over EvilBay. Single flare may hold, but you are far better off double flaring.
Master Cool makes a great double flare tool. It is a hand pump hydraulic unit. They are a little pricy, about $300, but well worth it. You can find them all over EvilBay. Single flare may hold, but you are far better off double flaring.
flusher
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Probably want 0.049" wall for 3/8" OD tubing. I'd check into flareless compression fittings for your hydraulics job
Flareless Compression Hydraulic Tube Fittings
A lot less expensive than shelling out for a good flaring tool. Could make your life easier. My tractor dealer uses them all the time for FELs and other jobs.
OP
scarlo101
Silver Member
Thanks all for your input. It is carbon steel seamless .035" wall tubing that I am using. Researched the tubing today and it is capable of handling 3100 psi. As far as the flaring goes, could not find much info on it. I am using 37 degree JIC fittings. I think I am going to try single flare for now.
Farmerford
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I'm with Flusher on the flareless fittings, and have used the ones he references on the DHH site. But if you look at page 2 under JIC 37deg fittings on the same site you will find "Convert-a-flare" fittings that I find work just as well as the "flareless" fittings Flusher references, are somewhat cheaper, and require fewer adapters since they attach the tube directly to the JIC male flare. When I first used them a few years back I was concerned that that would leak because the joint that seals the ferrule to the tube is a narrow crimp. But after heavy use they are holding up fine.
Farmerford
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I forgot to say your pictures are welcomed. That is pretty country. Three questions.
Do you own all the land in view?
In the last picture, why is there no snow on the field (if I seem ignorant it is because I last saw snow in 1993)?
How does the Ironworker fit in?
Thanks.
Do you own all the land in view?
In the last picture, why is there no snow on the field (if I seem ignorant it is because I last saw snow in 1993)?
How does the Ironworker fit in?
Thanks.
OP
scarlo101
Silver Member
Farmer, no that is not my land, that is my neighbors field. I live on the edge of the survey. My propety is on the right side. The pics with no snow were taken in the fall. The snow pics are from last week. And the ironworker, well that is my latest purchase. I will be picking it up in the next couple of days. I am in the process of constructing a FEL for my BX hence the hydraulic tubing questions.
BTW I also retrofited the snow blade in the pic from a quad blade. I use the 3PH up/down lever to raise and lower the blade at the front. Works very well.
BTW I also retrofited the snow blade in the pic from a quad blade. I use the 3PH up/down lever to raise and lower the blade at the front. Works very well.
