OTC’s No. 4503 Double Flaring Kit is designed to make double or single flares in copper, aluminum, and brass tubing as well as soft steel brake line tubing. Chrome plated alloy steel swivel reduces friction and helps ensure a smooth, even flare.

Is a double flare necessary?

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 a single flare and a double flare?

The single flare is very identical to the double flare. Although they look a lot alike, the double flare is much stronger and can hold more pressure build up inside the braking system. The double flare is a flare that is especially popular in vehicles imported from Europe.

What is a double flare called?

3. Inverted Flare vs. Double Flare. Inverted flare is another name of double flare. Double flare brake lines are the most commonly found in American and Asian cars.

Is it OK to single flare brake line?

1. Single Flares are only acceptable on low-pressure lines, but not acceptable for high-pressure brake systems. A single flare is just as it sounds, the line is flared out just once in a conical shape. Single flares are not acceptable for brake lines and tend to crack and leak quite easily.

Can I use Teflon tape on brake lines?

No. You cannot safely, nor should you attempt to use Teflon tape on brake lines. A brake system should not rely on anything to stop a leak. The system relies on pushing a solvent under high pressure in a closed system for safe operation, and Teflon tape will threaten the integrity of that system.

Can copper tubing be used for brake lines?

Are Copper-Nickel Brake Lines Legal? Due to the terrible history, the use of copper brake lines became illegal. Since the release of the new copper-nickel solution, the product is legal to use. The Copper Development Association is now opposed to copper brake pads.

Are inverted flare and double flare the same?

The first is the inverted double flare, used by most domestic production cars and trucks. … It uses a 45* double flare to seal, which has tubing that is folded over into itself before flaring outward. The double flare is used for installations that require repeated tightening/untightening.

Why are some brake lines coiled?

Brake lines are coiled to prevent breaking from fatigue due to moving parts. The mounting points on components which move relatively to each other due to movement from vibration, heat, etc. need to have some relief, as in a coil or flexible line.

Why should you flare a steel brake line?

Double flares are necessary for brake lines due to the high pressures inflicted on them by the hydraulic system. Single flared lines are only appropriate for low-pressure lines due to their tendency to crack or leak.