What Type of Flare is Used on Hydraulic Brake Systems?

brake line flaring tool

If there is one thing you should study about your car, it should be the brake system. When you know how your brake system works, it will be easy for you to manage it and know when it needs a repair already. Since your brake will be the controller of the motion of the car, it is essential it functions appropriately if you are using the car daily. Most automotive brake systems use hydraulics for it to run. These hydraulic brake systems uses different flares.

Hydraulic brake systems use two kinds of brake line flaring tool. Even though there are three types, it does not use the single flare for this purpose because it cannot handle high pressure. Do not forget this because it can save you from the trouble of having to make repairs because of the wrong use of flares. The flares that are used for hydraulic brake systems include the double flare and the bubble flare. Worldwide, these are the two most commonly used flares you will be encountering.

The double flare, also known as the SAE or inverted or 45-degree flare, is the most common. Most cars in Asia and America use this type because of its efficiency. Manufacturers in this region have been creating this type and making a lot of innovations to improve the brake system further. Although there are individual variations from one model to another, the essential components are always there. The advantage is that you can make certain modifications without having difficulties handling the finished product. This tool is perfect as a standard component of your car, and you can depend on its ability to handle the right amount of pressure.

Related – Compression Fittings for Brake Lines

You can easily recognize this kind of flare because of its appearance. Double flare is recognizable because of its funnel appearance which contributes to its function. Remember also that its backside is at 45 degrees angle, hence its name. Aside from the brake system, you can also use this flare for the clutch system which also uses high-pressure circuits. They designed the tubing of this flare to create a stronger seat surface for the flare nut to tighten against. This was done by folding the tube on itself.

Hydraulic Brake Systems

Bubble flares commonly used by people from Europe. Also known as ISO, Metric-style, or DIN, it serves the same function as the other flares although there are specific differences you should note. For one, the back side of the flare is at 90 degrees. Also, the end of the tubing looks like a button, so it can be easily recognized. We mainly use this kind of flare in domestic applications. If you look at European imports, you will usually find this type.

Related – Size of Brake Line Fittings

The single flare steel lines have also been used for brake lines, but ideally, it should be used with stainless steel where the Army Navy fittings are needed. These fittings cannot interchange with other types that is why this flare may not be that flexible. It might not be the best decision to use it for cars because of the lack of variation. Also, another problem with this is that it cannot handle extreme pressure which is required by most vehicles are in use nowadays.

These are the central flares used in hydraulic brake systems. Make sure that familiarize yourself with them.

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