Angle Cocks are provided at the end of brake pipe and feed pipe on each vehicle to maintain flow of air in the air brake system during the run of the vehicle.

Angle Cocks are used in air braked rail vehicles to isolate the brake pipe and or main reservoir pipe at the ends of the vehicle. They are installed at both ends of the vehicle. If the angle cocks are closed, the connected hoses are vented so that the hoses can be uncoupled without any danger.