Hey guys, does anyone know where I can learn about a-n fittings and braided steel lines? I would like to learn how to convert the sizes, applications, and how to assemble. Thanks for being here for guys like me. :cool
a-n fittings and lines
- Thread starter rgtrough
- Start date
rough,
Aeroquip 601 or Stratoflex 156 series hose would be sufficient for automobile applications. It is a meddium pressure rubber hose used for fuel, air, hydraulic, engine lines in aircraft.
Aeroquip 601 or Stratoflex 156 series hose would be sufficient for automobile applications. It is a meddium pressure rubber hose used for fuel, air, hydraulic, engine lines in aircraft.
Twin_Turbo
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- 1982 Twin Turbocharged Red/Black
Do you mean sizes? AN sizes are fractions of 16. So -4AN = 4/16" = 1/4"
-16AN = 1"
Marck
-16AN = 1"Marck
H
Hijinx
Guest
Go to the Earl's site ( http://www.earls.co.uk/ ) and order a catalog. It will give you the sizes of all AN fittings and let you know what kind of fittings are available. I have gone over to using Aeroequip silicone (blue) press fit hose and Earl's fittings in my '73. I have some made braided line, but like the silicone just as much. However, it is almost impossible to remove from a barb without cutting. I use braided on lines I have to pull from time to time and the silicone for everything that will be semi perminamt.
rough,
The design-type fitting will depend on the type of hose you use. At work we use teflon inserts with SS braid re-inforcement. These are for high pressure (for the most part this would mean 3,000 to even 4,000 PSI service), but we tend to use them for medium pressure to increase reliability and durability.
Flared fittings (AN Style) come in different design-types to match the type of hose. Fortunately, medium pressure applications can mostly be done by hand-assembling (hacksaw to cut the hose lenght, flaring of the braid to fit the ferule correctly, assembling, and testing). We designed a tool to ensure a straight and perpendicular cut with respect to the hose lenght using a hacksaw. This is critical, but depending on the application (fuel delivery and/or pressure levels) it is not terribly so -specially when it comes to automobiles. Most automobile applications (except for maybe NHRA) fall in the low pressure hose applicatiions.
Just a few pointers though, lenght of the hose is critical if it is a rubber hose. It may look nicer to make a particular section 18" long (for example), but rubber hoses tend to shorten when under pressure more than SS braid-reinforced teflon inserts. Pressure test the hose to twice the service pressure to ensure reliability. You can always substitute with higher pressure-rated hoses for lower pressure applications but obviously not the opposite.
Some types of hoses require machine or tool assembling (such as swage-type fittings) but generaly speaking not the reusable style of fittings (swage-type are one-time-use fittings).
The design-type fitting will depend on the type of hose you use. At work we use teflon inserts with SS braid re-inforcement. These are for high pressure (for the most part this would mean 3,000 to even 4,000 PSI service), but we tend to use them for medium pressure to increase reliability and durability.
Flared fittings (AN Style) come in different design-types to match the type of hose. Fortunately, medium pressure applications can mostly be done by hand-assembling (hacksaw to cut the hose lenght, flaring of the braid to fit the ferule correctly, assembling, and testing). We designed a tool to ensure a straight and perpendicular cut with respect to the hose lenght using a hacksaw. This is critical, but depending on the application (fuel delivery and/or pressure levels) it is not terribly so -specially when it comes to automobiles. Most automobile applications (except for maybe NHRA) fall in the low pressure hose applicatiions.
Just a few pointers though, lenght of the hose is critical if it is a rubber hose. It may look nicer to make a particular section 18" long (for example), but rubber hoses tend to shorten when under pressure more than SS braid-reinforced teflon inserts. Pressure test the hose to twice the service pressure to ensure reliability. You can always substitute with higher pressure-rated hoses for lower pressure applications but obviously not the opposite.
Some types of hoses require machine or tool assembling (such as swage-type fittings) but generaly speaking not the reusable style of fittings (swage-type are one-time-use fittings).
6
69vettester
Guest
There is a little tech info about AN sizes on the holley site...
http://www.holley.com/HiOctn/ProdLine/Products/EPP/EPPTS/ANsizes.html
This is descriptive and simple but I still found getting the correct AN fuel fittings confusing.
Now I just measure the thread sizes of the part I want to fit and that tells me the correct AN fitting size.
Hope I didnt confuse instead of help.
http://www.holley.com/HiOctn/ProdLine/Products/EPP/EPPTS/ANsizes.html
This is descriptive and simple but I still found getting the correct AN fuel fittings confusing.
Now I just measure the thread sizes of the part I want to fit and that tells me the correct AN fitting size.
Hope I didnt confuse instead of help.
- Thread starter
- #7
Many Thanks
Hey guys, thanks for the very useful information. It always amazes me that I can ask a question here that I would be afraid to ask "person to person" and not only do I not get ridiculed, I get very helpful advice. Thanks again guys, :cool Bud
Hey guys, thanks for the very useful information. It always amazes me that I can ask a question here that I would be afraid to ask "person to person" and not only do I not get ridiculed, I get very helpful advice. Thanks again guys, :cool Bud
M
mgms_1968
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