SCREW-IN CARTRIDGE VALVE 045934034720000-VBSY-16U-RS-3:1-20

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The Bosch Rexroth 045934034720000-VBSY-16U-RS-3:1-20 (R930000067) is a high-performance screw-in cartridge valve designed for hydraulic applications requiring reliable load-holding and controlled motion. This valve falls within the VBSY product family, which is known for its counterbalance, 3-port vented, poppet-type external drain features. It is primarily used to maintain the position of a load when the directional control valve is in a neutral position, preventing any unintended movement due to external forces or load-induced pressure surges. With a maximum operating pressure of up to 350 bar (5076 psi) and a maximum flow capacity of 60 l/min (15.9 gpm), this valve ensures efficient operation under demanding conditions. The VBSY-16U-RS-3:1-20 model incorporates a counterclockwise adjustment direction for pressure setting, allowing precise tuning according to system requirements. Its pilot ratio of 3:1 provides stability and responsiveness in controlling the actuator movement. The valve features NBR sealing material for robust sealing performance and compatibility with hydraulic fluids such as HL and HLP types. The Sun TA cavity design accommodates this cartridge valve, ensuring easy integration into various hydraulic systems. Additionally, it comes with an external pilot operation and an external drain configuration that contributes to its overall functionality and efficiency. This particular model also includes pressure presetting capabilities, which can be advantageous during installation or maintenance by providing a baseline operating parameter. With its normally closed spool position and poppet-type design, the Bosch Rexroth VBSY series cartridge valve ensures leak-free control when in the closed state. Weighing approximately 0.4 kg, this compact yet robust component is engineered for durability and consistent performance, making it suitable for various industrial applications where hydraulic control with an external pilot supply and tank port drain is essential.