Product Overview
The Rexroth 0 811 104 103 is a high-performance proportional directional valve engineered by Bosch Rexroth for precise, electro-proportional control of hydraulic flow direction and magnitude in industrial power units. Utilizing a robust spool-and-sleeve design actuated by a proportional solenoid, this valve delivers infinitely variable flow metering proportional to the electrical input signal, enabling smooth acceleration and deceleration of actuators without shock or pressure spikes. As a direct-operated proportional directional valve, it serves as a critical interface between electronic control systems and hydraulic power circuits, providing accurate directional control, load holding, and velocity regulation in demanding closed-loop and open-loop applications. The 0 811 104 103 is manufactured to Rexroth’s stringent quality standards, ensuring repeatable performance, long service life, and direct interchangeability with original OEM components.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Spool Type, Direct-Operated) |
| Model Designation | 0 811 104 103 |
| Manufacturer | Bosch Rexroth |
| Actuation Type | Proportional Solenoid with Integrated Position Feedback |
| Operating Pressure | Standard Industrial Grade (Up to 315 bar rated) |
| Nominal Flow Rate | Proportional to Command Signal (Typical 10–80 L/min depending on spool) |
| Spool Configuration | 4-Way, 3-Position (4/3) with Closed or Tandem Center Options |
| Mounting & Connection | Standard ISO 4401 / CETOP Subplate Interface |
| Electrical Command Signal | Analog ±10 V DC or 4–20 mA (via Rexroth amplifier card) |
| Hysteresis & Repeatability | < 1% (with closed-loop position control) |
| Seal Material | NBR / FKM (Standard Industrial Hydraulic Fluids) |
Engineering Features & Advantages
- Precision Proportional Metering: The spool geometry and proportional solenoid deliver infinitely variable flow control with minimal hysteresis and excellent repeatability, enabling accurate velocity profiling and smooth actuator motion in closed-loop systems.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
As a direct-operated proportional directional valve, it serves as a critical interface between electronic control systems and hydraulic power circuits, providing accurate directional control, load holding, and velocity regulation in demanding closed-loop and open-loop applications.
PRODUCT IMAGES
REXROTH 0 811 104 103 Proportional Directional Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- 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 0 811 104 103 Solenoid Directional Spool Valve. This Germany-made 24V DC hydraulic component features a reliable spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.