The REXRTOH VT3006S34R5 is a specialized directional control valve engineered for precise and reliable operation within complex hydraulic systems. As part of the VT valve series, it is designed to manage the direction and flow of hydraulic fluid to various actuators, enabling controlled mechanical motion in industrial and mobile machinery. The specific model code indicates tailored characteristics for performance, size, and control type, making it a critical component for system designers seeking optimized hydraulic circuit control.
The primary function of the VT3006S34R5 valve is to direct pressurized hydraulic fluid from a pump to specific work ports connected to hydraulic cylinders or motors. By shifting an internal spool (manually, electrically via a solenoid, or proportionally), the valve opens or closes flow paths between these ports and the tank or pressure line. This action controls the extension, retraction, stopping, or speed of an actuator. The precision of the spool design and the quality of the internal sealing directly influence the valve's efficiency, response time, and leakage characteristics, which are crucial for overall system performance.
Decoding the model number and typical series features reveals several key attributes of the VT3006S34R5:
Modular Stackable Design: Likely part of a modular valve bank system, allowing multiple valves to be stacked together on a common manifold to control multiple functions from a single assembly, saving space and piping.
Specific Spool Configuration (S34): The "S34" denotes a particular spool type, which defines the internal flow paths, switching positions (e.g., 4/3-way), and center condition (e.g., closed, open, tandem). This determines the valve's control capabilities.
Pressure Rating (R5): The "R5" suffix often indicates a specific pressure rating or version, defining the maximum system pressure the valve can handle reliably, which is critical for safety and durability.
Precision Machined Components: Manufactured with high-precision spools, sleeves, and bodies to ensure smooth operation, minimal internal leakage, and consistent performance over time.
Robust Construction: Built from high-strength materials such as hardened steel or ductile iron to withstand high pressures, shock loads, and the abrasive nature of hydraulic fluid.
Versatile Actuation Options: Can be configured for manual lever control, solenoid actuation for on/off electric control, or proportional solenoid control for precise, variable flow regulation.
Integrated Options: May include features like integrated pressure compensators, load-holding check valves, or pilot-operated controls for advanced functionality.

Based on the VT series nomenclature and typical industry standards, the following specifications are generally applicable:
The VT3006S34R5 is typically mounted onto a machined manifold block that houses the fluid passages (galleries) connecting multiple valves, the pump, the tank, and the actuators. This integrated design minimizes external piping, reduces potential leak points, and creates a compact, serviceable valve package. In a circuit, this valve is selected based on the required flow for its function, the necessary spool type for the desired actuator control, and the system's operating pressure. Proper integration requires consideration of pilot pressure (for solenoid valves), return line backpressure, and the need for ancillary valves like relief valves or checks.
This valve is suited for a wide range of heavy-duty applications:
Construction Machinery: Controlling the boom, arm, and bucket movements on excavators, or the lift and tilt functions on loaders.
Agricultural Equipment: Operating the lifting arms, steering, and implement controls on tractors and harvesters.
Material Handling: Managing the lift and tilt cylinders on forklifts, the functions on cranes, and conveyor drives.
Industrial Automation: Used in hydraulic presses, injection molding machines, and steel mill equipment for precise cylinder control.
Forestry and Mining Equipment: Controlling powerful actuators in demanding environments for log grapples, rock breakers, and drilling rigs.
The REXRTOH VT3006S34R5 directional control valve exemplifies the precision and reliability required in modern hydraulic systems. Its design, inferred from the model series and typical Rexroth engineering, focuses on providing accurate flow control, robust construction, and flexible integration. By serving as a fundamental building block in hydraulic power circuits, it enables the efficient and powerful motion that drives machinery across countless industries. For definitive specifications, performance curves, and installation details for the exact VT3006S34R5 model, consulting the official Bosch Rexroth technical documentation is essential.



