Rexroth R900909219 Servo Valve | 4WSWEM10-51

Rexroth R900909219 4WSWEM10 Hydraulic Servo Valve

The Rexroth R900909219 (4WSWEM10-51/75B11ET315K31EV) is a two-stage directional servo valve for precise closed-loop control of position, force, pressure and velocity. This valve is designed for the most demanding industrial and marine hydraulic applications. It employs a nozzle-flapper plate amplifier for the first stage and mechanical feedback for unparalleled accuracy.

This unit is a marine engineer-grade component with a “dry” torque motor to keep solenoid gaps from being exposed to hydraulic fluid, hence reducing the risk of contamination-induced failures in a maritime environment.

Technical Specifications: R900909219

Benefits and Features:

1. Precision Engineering: High response sensitivity, low hysteresis (≤1.5%) and low zero point drift.
2. Contamination Resistant: Dry torque motor design shields solenoid gaps from fluid borne contaminants
3. Robust Feedback System: The wear-free spool return elements and gap sealed pressure chambers ensure a long service life.
4. Versatile Control: Position, force and velocity control with great reproducibility.
5. Easy Maintenance The first stage filter is accessible from the outside for fast service onsite without complete disassembly.

Where to Use?

• Hydraulic actuators and steering gear systems of ships.
• Industrial motion control and automation systems.
• Controls for material testing equipment and presses.
• Robots for heavy-duty manufacturing.
• Hydraulic turbine regulation in power plants.

Compatibility:

This model is part of the Rexroth 4WS(E)2EM series. It is compatible with ISO 4401-03-02-0-05 subplates. When replacing existing units, ensure the pressure rating (315 bar) and the flow rating match your specific hydraulic circuit requirements.

Condition & Shipping:

• Condition: New (Surplus).
• Availability: In stock.
• Shipping: We provide worldwide shipping from our facility. Typical processing time is 1–2 business days.