What is the typical operating pressure range for foot valves?

The typical operating pressure range for foot valves is indeed 5 to 80 psi. Foot valves in hydraulic systems, including those used in braking systems, usually function within this range to ensure effective operation.

Operating at 5 psi allows the system to engage while 80 psi is generally sufficient to provide the necessary force for braking without compromising system reliability. This pressure range is designed to accommodate varying conditions and demands placed on the braking system, ensuring that the foot valve can effectively modulate brake pressure as needed in response to driver input.

Choosing this pressure range reflects common practices in the field, where both lower and higher extremes can be outside typical operational requirements. Understanding this range is crucial for technicians to diagnose and repair braking system issues effectively, ensuring safety and performance in bus operation.