SAE Flareless Tube Fittings

The OmegaOne F series Stainless Steel Flareless Tube Fitting is the single ferrule “bite-type” or compression style fitting. The SAE Flareless tube fitting is most commonly referred to as a “bite-type” tube fitting. Flareless Tube fitting works with a tube that is not flared. The Flareless Tube Fitting is made up of three components, the fitting body nut, and ferrule. During assembly when the nut is tightened down, the ferrule “bites” into the tube to the point it forms a seal that will not leak. The single ferrule flareless tube fitting is also commonly referred to as a compression fitting, but should not be confused with a double ferrule compression style fitting.

Flareless (F Series) fittings are sold as a complete assembly unless otherwise specified. Flareless nuts and sleeves are not available for individual sale. OmegaOne Flareless Nuts have a grey appearance due to the molly coating process helping to increase the performance of the nut. All F Series Flareless Fittings are manufactured from 316 Stainless Steel.

The SAE Flareless fitting is ideal for systems with high vibration as it dampens vibration better than flare fittings. If an application calls for a thicker tube a flareless fitting is a better solution because the flareless fitting does not require the tube end to be flared. Once the ferrule is in place and set, the assembly will not leak, making it very reliable, more reliable then the 37-degree flare fitting.

A drawback to the stainless steel compression tube fittings is that is required the pre-set before final assembly to ensure proper function. Once set and assembled the fitting may take a part to service, however, once the ferrule is set in the tube it is not reusable.