The pressure sequence valve operates on the principle that______.

The pressure sequence valve operates on the principle that______.

• A. Flow takes the path of least resistance
• B. System pressure rises when an actuator becomes extended
• C. Is described by Pascal's Law
• D. All of the above

Answer: (D)

A pressure sequence valve uses the pressure in the first circuit as the trigger to control the order of actuator movement. As the first actuator extends against its load, the hydraulic pressure in that circuit rises. When this pressure reaches the valve’s setting, the valve opens and allows flow to the next actuator, so the sequence proceeds. Fluid in a network tends to take the path of least resistance, but the valve holds back the alternative path until the correct pressure is reached, shaping the flow order accordingly. The mechanism relies on Pascal’s Law, which means pressure applied to a confined fluid is transmitted throughout the system; the sensed pressure reflects the load and is what causes the valve to switch. All of these aspects describe how a pressure sequence valve operates.

A pressure sequence valve uses the pressure in the first circuit as the trigger to control the order of actuator movement. As the first actuator extends against its load, the hydraulic pressure in that circuit rises. When this pressure reaches the valve’s setting, the valve opens and allows flow to the next actuator, so the sequence proceeds.

Fluid in a network tends to take the path of least resistance, but the valve holds back the alternative path until the correct pressure is reached, shaping the flow order accordingly. The mechanism relies on Pascal’s Law, which means pressure applied to a confined fluid is transmitted throughout the system; the sensed pressure reflects the load and is what causes the valve to switch.

All of these aspects describe how a pressure sequence valve operates.