The sequence valve applied to the agitation cylinder in the pumping system of a concrete pump truck is used to control the sequential operation of the cylinders. In this case, the sequence valve ensures that the agitation cylinder operates in the correct order with other components of the pumping system, such as the concrete pump and the delivery cylinders.

 

 Key functions of the sequence valve in this context:
  1. Sequential Control: The sequence valve ensures that the agitation cylinder only operates when certain conditions are met, such as the correct pressure or position of other cylinders in the system. This ensures proper timing and synchronization of operations.
  2. Pressure-Driven Activation: The sequence valve typically uses pressure from the hydraulic system to activate the next operation. For example, once the pressure reaches a preset level, the sequence valve will allow the agitation cylinder to engage, ensuring smooth operation of the entire concrete pumping system.
  3. Safety and Efficiency: By controlling the sequence of operations, the valve prevents components from engaging at the wrong time, which could cause damage to the system or inefficiencies. It helps ensure that the concrete is mixed and pumped properly without unnecessary strain on the machinery.
  4. Applications in Concrete Pump Trucks: The sequence valve is an essential component in concrete pump trucks to manage the various hydraulic operations involved in pumping, mixing, and delivering concrete. It maintains smooth, synchronized motion between the agitation cylinder and other hydraulic components.