What is the minimum distance a flare should be from the bend when flaring a tube?

The minimum distance a flare should be from the bend when flaring a tube is typically established to ensure the integrity of the flare and prevent potential leaks. Specifically, a distance of 2 nut lengths from the bend is recommended. This distance allows enough room for the tube to remain straight at the flare point, which is crucial for creating a proper seal when connecting fittings.

Flaring a tube involves expanding the end of the tubing into a cone shape to create a secure connection with a fitting. If the flare is too close to the bend, it can lead to improper shaping of the flare, potentially compromising the seal and risking leaks. By maintaining a distance of 2 nut lengths from the bend, you help ensure that both the flare and the fitting can align properly, which contributes to the overall safety and effectiveness of the piping system.