Product Overview
The Rexroth 3FREE Z6B-11/35L2G24K31F1MM (Material Number: 0811403152) is a high-performance proportional flow control valve engineered for precise, electro-hydraulic regulation of flow rate in demanding industrial hydraulic systems. Manufactured by Bosch Rexroth, this valve operates on a proportional solenoid actuation principle, where an electrical command signal proportionally positions the internal spool to meter flow with high resolution and repeatability. As a direct-operated proportional flow control valve, it serves as a critical interface between electronic control systems and hydraulic actuators, enabling smooth, infinitely variable speed and velocity control of cylinders and motors. Its robust construction and precision spool-to-sleeve fit ensure minimal hysteresis, excellent linearity, and long-term operational stability in continuous-duty applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Flow Control Valve (Proportional & Servo Valve) |
| Model Designation | 3FREE Z6B-11/35L2G24K31F1MM / 0811403152 |
| Manufacturer | Bosch Rexroth |
| Actuation Type | Proportional Solenoid (24 V DC nominal) |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar rated) |
| Nominal Flow Rate | 35 L/min (at rated pressure differential) |
| Mounting & Connection | Standard ISO 4401 / Manufacturer Interface (Subplate Mounting) |
| Electrical Interface | K31F1MM Solenoid Connector with Integrated Electronics |
| Control Signal | Analog / Proportional Current Command |
| Seal Material | NBR / FKM (Standard Industrial Hydraulic Fluids) |
Engineering Features & Advantages
- Precision Flow Metering: The proportional solenoid and precision-ground spool deliver infinitely variable flow control with high resolution, low hysteresis, and excellent repeatability, ensuring accurate velocity regulation of hydraulic actuators.
- Fast Dynamic Response: Optimized spool geometry and high-force proportional solenoid enable rapid response to command signal changes, critical for closed-loop position and velocity control applications.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction, contamination-resistant spool design, and proven Rexroth manufacturing quality.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
Its robust construction and precision spool-to-sleeve fit ensure minimal hysteresis, excellent linearity, and long-term operational stability in continuous-duty applications.
PRODUCT IMAGES
REXROTH 3FREE Z6B-11/35L2G24K31F1MM / 0811403152 Proportional Flow Control 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 3FREE Z6B-11/35L2G24K31F1MM Proportional Pressure Relief Valve. This German-made 24V DC hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.