Product Overview
The Rexroth R900991136 is a high-performance proportional directional valve from the renowned Bosch Rexroth WR series, engineered for precise electro-hydraulic control of flow direction and magnitude in demanding industrial hydraulic systems. This valve operates on a proportional solenoid actuation principle, where an electrical command signal proportionally positions the control spool against a centering spring, thereby modulating flow rate and direction with infinite resolution. Unlike on/off directional valves, the R900991136 enables continuous, stepless control of actuator speed and force, making it an essential component in closed-loop and open-loop motion control architectures. Its robust housing, precision-machined spool lands, and high-response proportional solenoids ensure accurate metering, minimal hysteresis, and long service life in continuous-duty industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve |
| Model Designation | R900991136 |
| Manufacturer | Bosch Rexroth |
| Actuation Type | Proportional Solenoid (Single or Dual Solenoid Configuration) |
| Operating Pressure | Standard Industrial Grade (Up to 315 bar rated) |
| Nominal Flow Rate | Model-dependent (typically 10–100 L/min at Δp = 10 bar) |
| Spool Configuration | 4-way, 3-position (4/3) proportional spool |
| Mounting & Connection | Standard ISO 4401 / CETOP Subplate Interface |
| Electrical Command Signal | Analog ±10 V DC or 4–20 mA (via proportional amplifier) |
| Hysteresis | ≤ 5% of nominal command value |
| Response Time | Fast dynamic response suitable for closed-loop control |
Engineering Features & Advantages
- Precision Proportional Metering: The R900991136 delivers infinitely variable flow control proportional to the electrical input signal, enabling smooth acceleration and deceleration of hydraulic actuators without shock or pressure spikes.
- High-Response Solenoid Actuation: Advanced proportional solenoids provide rapid spool positioning with minimal dead band, ensuring accurate tracking of dynamic command signals in closed-loop servo-proportional systems.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Precision-manufactured to original Rexroth specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
Its robust housing, precision-machined spool lands, and high-response proportional solenoids ensure accurate metering, minimal hysteresis, and long service life in continuous-duty industrial environments.
PRODUCT IMAGES
Rexroth R900991136 Proportional Directional Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine Rexroth R900991136 Proportional Directional Valve. This Germany-made 24V DC hydraulic component features a 4-way, 3-position design with spring centering, delivering leak-free, reliable fluid control for heavy-duty industrial systems.