Inverted Flare Hydraulic Fittings are widely used in hydraulic brake, power steering, fuel lines and transmission cooler lines. Inverted flare fittings are inexpensive and reusable. Inverted flare provides excellent vibration resistance. Seats and threads are internal and protected.

What are inverted flare nuts for?

These flare nuts are designed to help resist mechanical pull out and are ideal for use with aluminum, brass, copper, and welded steel tubing that can be flared. Use in gas or liquid applications that can be assembled and disassembled repeatedly.

What is a inverted flare on a tube?

Inverted Flare Hydraulic Tube Fittings Inverted flare fittings are inexpensive and reusable. Inverted flare provides excellent vibration resistance. Short nut (available in brass or steel) allows very close tube bends. Working pressure: up to 2,000 psi depending on tube size.

Is an inverted flare the same as a double flare?

It’s called inverted because the adapters are female and the nuts on the lines are male. DOUBLE flare has nothing to do with the types of fittings or inverted or SAE. Double flare means you make a “double fold” with the tool. This folds the raw edge of the line in like a cuff on your pants to prevent it from splitting.

What type of flare is best for brake lines?

All brake lines need to be double flared, due to the high hydraulic pressure. If your brakes leak or the hoses crack, it could prove to be fatal. Single flared lines are suitable for low-pressure lines in other applications, but not your vehicle’s brakes.

What is the difference between double flare and bubble flare?

Just like the double flare, the bubble flare may also be called something else such as DIN or ISO. When creating a bubble flare, you have one less step. When someone is making a double flare, they actually start out by making a bubble flare before that.

What is inverted flare?

What’s inverted flare? Inverted Flare Hydraulic Fittings are widely used in hydraulic brake, power steering, fuel lines and transmission cooler lines. Inverted flare fittings are inexpensive and reusable. Inverted flare provides excellent vibration resistance.

Is inverted flare bubble flare?

The SAE/double (inverted/45degree) flare and the DIN/ISO bubble flare. We will refer to them as SAE or DIN flare. The most common is the SAE flare. If your brake line looks like a tiny funnel going into the ID of the tubing, and the back side of the flare is at a 45 degree angle, then it is the SAE flare.

What angle is inverted flare?

In the first image above, the SAE double inverted flares are considered to have a 45 degree angle – this angle matches the female end of the fitting, whereas the male end has a 42 degree angle. During assembly, as the tube nut is tightened, the male end deforms to match the angle of the female end.

What type of flare is used mostly in the United States?

The most common type of flare you’ll find on domestic and street rod applications is a 45-degree double flare. The double flare is used on high pressure circuits like the brake and clutch system.

How does a flare fitting seal?

Design: The 37° flare AN seal is used for sealing tubing to end connections. It requires the end of the tube to have a nut slipped onto it and then flared out using a special tool. To seal properly, the nut is threaded into a flare fitting which clamps the flared tube in between the nut and flare fitting.

Do flare fittings need Teflon tape?

Do not use Teflon ® tape or pipe sealant on any flare ends because you will not obtain a leak-free seal. Keep flare end of fitting free of grease, oil and thread sealant. Use a wrench only on the hex surfaces of the fittings.