Pressure override is the difference between which two types of pressure?

The concept of pressure override refers to the operational principles of valves, particularly in hydraulic systems. It is defined as the difference between cracking pressure and full flow pressure.

Cracking pressure is the minimum pressure required to open a valve. This is important because it signifies the point at which the valve begins to allow fluid to pass through. On the other hand, full flow pressure is the pressure at which the valve is fully opened and allows maximum flow.

Understanding the difference between these two pressures is crucial for millwrights and those working with hydraulic systems, as it helps in determining the efficiency and performance of the system. When analyzing a system, knowing how much pressure is needed to get from a standstill (or closed position) into full operation can help in diagnosing issues, optimizing performance, and ensuring safety.

Thus, the correct choice clearly illustrates the relationship between these two specific pressures that significantly affect the operation of hydraulic valves.