All of our fittings are D.O.T. Approved to prevent Air Leaks
Alkon AQ-DOT Series meet D.O.T. FMVSS 571.106 Air Brake Performance Requirements
SAE J1131, J2494-1 & J2494-3 Air Brake Performance Requirements.
Materials of Construction
Body (straights), tube supports and grippers: Brass CA 360
Forged Elbows: Brass CA377
"O" Ring: NBR-269, alternate compounds on request.
Temperature Range -40℉ to 212℉ (other ranges available upon request)
Threads - NPTF Standard.
Recommended Tubing - Polyethylene, Polyurethane 95A Durometer and Nylon AQ-DOT Series - J844 Air Brake Tubing
Working Pressure - The fitting is suitable for use up to the maximum working pressure of the recommended plastic tubing.
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