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From transporting fluids and gases to creating robust connections in high-pressure environments, flare fittings deliver exceptional performance and reliability. In this comprehensive guide, we will delve into the intricacies of flare fittings, exploring their design, materials, installation, and applications.
A flare fitting is a type of compression fitting in which a flare nut secures the flared tubing’s tapered end to create pressure- and leak-resistant seals. Flare fittings work only on soft metals, such as soft steel, flexible (or soft) copper, and aluminum.
Flare fittings are a type of compression fitting used with metal tubing, usually soft steel, ductile (soft) copper and aluminum, though other materials are also used. In a flare fitting the tube itself is "flared" i.e. expanded and deformed at the end.
Flareless fittings, also known as compression fittings, use a ferrule or sleeve to compress the tubing against the fitting body to create a seal. The ferrule deforms to create a tight grip on the tubing when the fitting nut is tightened, ensuring a leak-tight connection.
Flare fittings are essential in piping and plumbing systems to ensure a leak-proof connection between tubes and pipes. These fittings are particularly favoured in systems that handle high pressure, like refrigeration or hydraulic applications.
Flare connections work by creating a seal between the flare nut and the flare fitting. The flare nut has a tapered bore that fits over the end of the pipe or tube. The flare fitting has a flared end that fits into the bore of the flare nut.
Flare fittings are notable for their high-pressure resistance, while compression fittings offer easy assembly. Understanding their differences is key to selecting the appropriate fitting for any application.