You must have an Endorsement A specified on your licence to operate a vehicle equipped with an air brake system. The endorsement is not required when operating a Class 3 or 5 vehicle licensed as a farm truck or trucks with air over hydraulic brakes.
Quick Release Valve for Air Ride Axles, 3/8 Supply, 3/8x3/8
in Valves.
One Bendix Style QR-1 Quick Release Valve Tractor Trailer Valve 229860
Air Brake Quick Release Valve
Quick Release Valves Archives - Six Robblees
Replacement for GT®. Mounts to Trailer Gladhand. 1/2 NPTM Tractor Port, 1/2 NPTF Trailer Port. Reference Numbers Industry 4000-6 & 401146
Inline Quick Release Valve
Air Quick Release Valves, 2. Air Valves
Mini Flow C10 Valve - Special Gas Instruments - SGI
Air Quick Release Valves, 2. Air Valves
QR-1 Quick Release Valve - 1/4 x 1/4 x 3/8
Wabco 100304920 Quick Release Valve Tata - Vikings Automobile
Relay valve - SGI
Quick Release Valve - How it works. Air Braking systems and
SGI – Vertex Safety
Air Quick Release Valves, 2. Air Valves
Wabco 100304920 Quick Release Valve Tata - Vikings Automobile