The name "angle cock" refers to the device's distinctive slanted design, which enables mounting at a right angle to the pipe or hose it is attached to. When installed on the side of a railcar or locomotive or in confined locations, this configuration makes it simpler to access and use.
An angle cock's main function is to stop the flow of fluid through the system. The internal mechanism of the angle cock can either open or close the passage, controlling the flow of fluid, by moving the valve handle or lever. This is especially helpful in railway applications where angle cocks are frequently used to isolate or link various pneumatic or hydraulic system components aboard trains.
Angle cocks may operate to control the flow as well as to provide safety. For instance, angle cocks are fitted with a device that prevents unintentional decoupling of railcars in railway applications. The couplers are locked together and the flow of air or fluid is stopped when the angle cocks are closed, ensuring that the train is kept safely attached while operating.
Overall, angle cocks are essential for fluid management and safety in railway systems because they offer a practical and efficient technique to control the flow of fluids in a variety of applications.