Angle Cocks

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.
The angle cock housing has a rubber seal and a spherical design cock bolt segment. As we move the handle to closed position the cock bolt rotates and is in contact with sealing ring thereby interrupting the communication between the vehicle mounted pipe and the coupling hoses. The coupling hose pressure is vented to atmosphere through vent cap exhaust holes. When the cock bolt is operated in open position the hollow section of the cock bolt flushes with the direction of the flow thereby permitting an unobstructed air passage. In order to prevent an intermediate cock position handle is provided with a snap action device ensuring that the handle always takes one of the end positions.