The function of the air brake valve is to control the braking and release of the locomotive separately.
Train brake valve will have the following positions: "Release", "Running", "Lap" and "Application" and "Emergency".
The "Release" position connects the main reservoir to the brake pipe . This raises the air pressure in the brake pipe as quickly as possible to get a rapid release after the driver gets the signal to start the train.
In the "Running" position, the feed valve is selected. This allows a slow feed to be maintained into the brake pipe to counteract any small leaks or losses in the brake pipe, connections and hoses.
"Lap" is used to shut off the connection between the main reservoir and the brake pipe and to close off the connection to atmosphere after a brake application has been made.
It can only be used to provide a partial application.
| Product Name | DK-G Air control valve |
| Material | Casting aluminum alloy |
| Model | DK/DK-G |
| Working Pressure | 500 kPa or 600 kPa |
