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Design and Operation - UltraFlare™

Appearance 

An enhanced version of the standard SAE 37° Flared tube fitting, UltraFlare™ features a Teflon® back-up seal in the flared fitting nose cone. The seal is extruded of virgin Teflon® and machined to create an interference fit-in-the-groove, or trepan, in the fitting nose. This trepan is machined parallel to the fitting centerline to eliminate the risk of twisting the Teflon® seal out of its seat during assembly. In most other respects, the UltraFlare™ resembles the SAE flared tube fitting (see "SAE 37° Flared Tube Fittings / Appearance" for additional details).

Type 316/316L stainless steel is the standard material on all bodies, nuts and sleeves. PTFE/Teflon® is the standard seal material.

Suggested Applications for UltraFlare™ Tube Fittings

The UltraFlare™ is an extremely good choice in many cases for both new system design, and replacement of existing SAE flared tube fittings. For new system design, the UltraFlare™ offers a superior alternative to a standard SAE Flared fitting through its improved resistance to vibration and sealing reliability. The UltraFlare™ is also more forgiving of assembly irregularities in the shop or field, such as underflared tubing or under-torqued make-ups.

The UltraFlare™ uses standard SAE nuts & sleeves, and is assembled following normal procedures and techniques for SAE flared tube fittings. As such, for companies with an investment in tube flaring equipment and training, the UltraFlare™ represents a superior performing fitting system without the need for new capital equipment or technician training.

In the field, or for system maintenance, UltraFlare™ tube fittings can be substituted for a standard SAE flared fittings for enhanced protection against leakage due to normal system vibration.

Feature UltraFlare™ Tube Fitting Performance
Pressures To 9,000 psi 
Temperature PTFE/Teflon®: -100° to 450°F
Vibration Resistance

Very good

Materials Available T316/316L stainless steel
Size Available (tubing OD) 1/4" – 1"
6mm – 25mm
Tube Compatibility Seamless or welded and drawn over a mandrel
Inch or metric
Thin to medium thickness
Seal Reliability Very good
PTFE seal reinforces metal-to-metal seal
Medium tolerance to surface imperfections
Medium tolerance to assembly variation like under-flaring or torquing

 

 

 

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