What is required to create a seal with a flare fitting?

Creating a seal with a flare fitting involves the flaring of the tube. In this process, the end of a tube is shaped into a cone, which provides a precise surface area for making contact with the corresponding flare fitting. When the flare fitting is tightened, the flared end compresses against the fitting's surface, creating a leak-proof seal. This is a critical step in ensuring the integrity of refrigerant systems, as a proper flare connection can withstand high pressures without leaking.

The flare fitting is specifically designed to work with flared tubing, and this method is commonly used in HVAC and refrigeration systems because it allows for easy assembly and disassembly, making maintenance simpler.