Sequence valves are most often used to______.

Sequence valves are most often used to______.

• A. Replace a relief valve.
• B. Avoid the cost of an electrical control circuit
• C. Protect the pump
• D. Control downstream pressure

Answer: (B)

Sequence valves control the order in which parts of a hydraulic system activate by holding back flow to a downstream circuit until the upstream circuit reaches a set pressure. This lets multiple actuators operate in a defined sequence without needing complex electrical controls. Because you can achieve coordinated action hydraulically, you can often avoid installing an electrical control circuit, which is why this option is commonly cited. The valve’s job isn’t to replace a relief valve (that’s about overpressure protection) and it doesn’t primarily function to protect the pump; it simply governs when the next stage can pressurize. In short, the main benefit is enabling a hydraulic-only sequence of operations, which often reduces overall control costs.

Sequence valves control the order in which parts of a hydraulic system activate by holding back flow to a downstream circuit until the upstream circuit reaches a set pressure. This lets multiple actuators operate in a defined sequence without needing complex electrical controls. Because you can achieve coordinated action hydraulically, you can often avoid installing an electrical control circuit, which is why this option is commonly cited. The valve’s job isn’t to replace a relief valve (that’s about overpressure protection) and it doesn’t primarily function to protect the pump; it simply governs when the next stage can pressurize. In short, the main benefit is enabling a hydraulic-only sequence of operations, which often reduces overall control costs.