The air inlet of the relay valve is connected to the air reservoir, and the air outlet is connected to the brake air chamber. When the brake pedal is depressed, the output air pressure of the brake valve is input as the control pressure of the relay valve. Under the action of the control pressure, the intake valve is pushed open, so the compressed air enters the brake directly from the air reservoir through the intake port. The moving air chamber does not need to flow through the brake valve, which greatly shortens the inflation pipeline of the brake air chamber and accelerates the inflation process of the air chamber. Therefore, the relay valve is also called the acceleration valve. The relay valve is used at the end of the long pipeline to quickly fill the brake air chamber with compressed air from the air reservoir.
At Madetop, our engineering department manufactures any brake system used in heavy trucks, which is the most demanding and responsible.
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