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G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
AS6369 - Coupling Assembly, V-Band Sheet Metal Wide Flange, Pneumatic Tube
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Coupling Assembly, V-Band Sheet Metal Wide Flange, Pneumatic Tube
This SAE Aerospace Standard (AS) establishes the requirements for a grooved clamp coupling and flanges suitable for joining intermediate pressure and temperature ducting in aircraft pneumatic systems. The coupling joint assembly, hereafter referred to as "the joint", shall operate within the temperature range of -65 °F external ambient to +800 °F internal fluid.
This aerospace standard is a departure from the prior qualification practices for the V-band coupling assemblies, AS4751. Prior practice sought to validate this type of assembled coupling design by conducting proof pressure testing but exceeded allowable leakage. AS6369 is to replace AS4751 for future design.
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