Thread: 37 Degree or 45 Degree Oh What to do!

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Here's a page from Pure Choice showing a set something like what you probably have. You might want to contact them direct and see if they have a supplemental kit for 37 degree flaring, you can't be the first that would like it. http://www.performanceplumbing.com/Tools.html

As everyone has already said, the AN flare is 37 degrees. Most folks dont realize that the 37 degree dimension is a nominal dimension on only one of the two mating parts.....the other mating part is made with a slightly different angle. When the two parts are assembled, the contact is actually a circular shaped line or ring. The fitting does NOT seal by the contact of the two surfaces....only by the line contact. By using the line contact, the contact pressure is relatively high, enough to deform the fitting material slightly. Brake flares do a similar thing....ever notice the line formed when the fitting is taken apart?

If you need 37 degree fittings, the AN stuff is interchangeable with JIC37 degree stuff...and the JIC fittings are available at the hydraulic store, the tractor supply, etc.

mike in tucson

Good point, Denny....
Most folks dont understand that the valve face is on 100% in contact with the seat!!

mike in tucson