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SAE Flare fittings are a type of hydraulic fitting used with metal tubing, usually stainless steel, steel and brass materials. Tube flaring is considered to be a type of forging operation, and is usually a cold working procedure. The most common flare fitting standards in use today are the SAE 45-degree style, and the JIC 37-degree style, also used with the JIC system. Today we are going to talk some more details about 37 degree flare vs 45 degree flare and the difference between them.
JIC Fittings
JIC (Joint Industry Council) fittings or called 37° flare connectors, defined by the SAE J514 and ISO 8434-2 standards, are engineered with a 37-degree flare seating surface, making them a preferred choice in fuel delivery and fluid power applications, especially where high pressure (up to 10,000 psi) is a consideration. While they share a semblance with AN (Army-Navy) fittings in terms of design, JIC fittings are often favored for their less exacting tolerances which translate to cost-effectiveness, without compromising on reliability.
SAE Fittings
SAE (Society of Automotive Engineers) fittings, defined by the SAE J512 standard. These fittings, with a 45-degree flare seat. SAE fittings are mostly used in refrigeration, automotive piping systems and other low-pressure applications. It’s common for copper tubes to be used with SAE threads. SAE Flare The SAE male and female halves both have a 45° flare seat.
Comparing
- Flare Angle:
- JIC fittings have a 37-degree flare angle.
- SAE fittings have a 45-degree flare angle.
- Standardization:
- JIC fittings are defined by SAE J514 and ISO 8434-2 standards.
- SAE fittings are defined by SAE J512 standard.
- Pressure Tolerance:
- JIC fittings are suitable for high-pressure applications, with capabilities of handling up to 10,000 psi.
- SAE fittings are generally utilized in low to medium pressure applications.
- Application Domains:
- JIC fittings are widely used in fuel delivery and fluid power applications.
- SAE fittings find common use in refrigeration, automotive piping systems, and other low-pressure applications.
- Material Compatibility:
- Both JIC and SAE fittings can be used with metal tubing, but SAE fittings are often used with soft copper tubes due to the nature of their threading and flare angle.
- Cost and Tolerances:
- JIC fittings are produced to less exacting tolerances compared to their AN (Army-Navy) counterparts, which often makes them less costly.
- SAE fittings are also cost-effective and the tolerances are suitable for their designated low to medium pressure applications.
- Interchangeability:
- Despite some similarities, JIC and SAE fittings are not interchangeable due to the difference in flare angles and the critical nature of this aspect in ensuring a secure and proper fit.
These differences underline the importance of selecting the correct type of fitting based on the specific requirements of your application, ensuring not only the efficacy but also the safety of the system.
If you have any questions about JIC and SAE fittings, please feel free to contact Hydraxio and get more details