What is the minimum working pressure for a vehicle's braking system?

The minimum working pressure for a vehicle's braking system is 30 psi. This standard is in place to ensure that the braking system can function effectively and safely. At this pressure level, the system is capable of achieving proper brake force and response during operation, which is essential for vehicle safety.

Brakes that operate below this pressure may not provide adequate stopping power, increasing the risk of accidents. Thus, maintaining the appropriate pressure is critical for ensuring that the braking system responds promptly and effectively when needed. This standard is based on tests and regulations that have determined that anything lower may compromise the overall safety of the vehicle.