Translations:Air Brake System Overview/4/en

Brake pipe is a system of air lines designed to distribute compressed air throughout an entire train. On a properly coupled train, air line hoses are connected between individual vehicles with their valves open. At the ends of the train, however, the valves are closed. This allows the pipe to be pressurized at 5 bar in normal running conditions, throughout the train, by available main reservoirs. The volume of brake pipes is relatively low, but it grows bigger with each additional coupled vehicle.