https://www.inno-valve.com/products/direct-acting-sequence-valve/ A direct acting sequence valve is a hydraulic pressure control valve type used to control the sequence of operations in a hydraulic system. It is designed to allow the flow of hydraulic fluid to a secondary circuit or actuator only when a predetermined pressure is reached in the primary circuit. Direct-acting sequence valves are commonly used in hydraulic systems where specific operations need to occur in a predetermined sequence. They ensure that certain actions or functions take place only when the required pressure is reached, providing reliable and efficient control over the system's operation.