What is the primary role of the shuttle valve in a BAK-12?

The primary role of the shuttle valve in a BAK-12 system is to maintain pretension. A shuttle valve is designed to manage the hydraulic pressure and ensure that the system can properly maintain the necessary tension in the components it supports, particularly in hydraulic braking systems. In the case of the BAK-12, maintaining pretension is critical for the functionality and safety of the braking system, as it helps ensure that the brakes can respond effectively when needed.

While controlling hydraulic flow, transmitting pressure, and managing braking force are crucial functions within hydraulic systems in general, they are secondary roles when it comes to the specific function of pretension in the BAK-12 system. The ability of the shuttle valve to maintain the proper pretension directly impacts the performance and reliability of the hydraulic system, ensuring the brakes remain responsive during operation.