Hi-Flow air brake brass inserts are used in conjuction with reinforced nylon air brake tubing NT100 - SAE J844 Type A and B.  Typical application:  air brake systems except where temperatures exceed +200 degrees Fahrenheit or where battery acid can drip on tubing.  Pressure and vibration:  maximum operating pressure of 150 psi and fair resistance to vibration.  The minimum burst pressure of airbrake tubing is 1,200 psi. Conformance:  Meets SAE 100102ba and DOT FMVSS 571.106 specifications.