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Key Aspects of a Differential Relay Valve:
Function:
It acts as a relay station, speeding up the application and release of brakes in vehicles, especially those with long wheelbases, by reducing brake lag.
Mechanism:
It receives a control signal from the foot valve and then relays a larger volume of reservoir air directly to the brake chambers, ensuring faster and more efficient brake application, particularly for rear brakes.
Anti-Compound Feature:
Differential relay valves, like the Bendix R-8™, often include an anti-compound feature to prevent spring brakes and service brakes from applying simultaneously, which helps avoid overloading mechanical components.
Safety:
They are crucial for safety in air brake systems, ensuring balanced air pressure between front and rear brakes and contributing to the rapid and efficient operation of the braking system.
Differential Relay Valve
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A differential relay valve, commonly found in air brake systems, is a type of relay valve designed to manage and control air pressure distribution, particularly to prevent issues like simultaneous operation of driving and parking brake systems or overlapping forces in combined spring brake cylinders.
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