Product Overview
The Rexroth 2FRE16-40/125LBK4M (Material Number: R900927478) is a high-performance 2-way proportional flow control valve engineered by Bosch Rexroth for precise, electro-proportional regulation of hydraulic flow in demanding industrial systems. Operating on a proven spool-and-sleeve metering principle, this valve modulates output flow proportionally to an electrical command signal, enabling smooth, infinitely variable velocity control of actuators independent of load pressure. As part of the Rexroth 2FRE series, it serves as a critical control element in pressure-compensated flow regulation circuits, delivering accurate flow metering for applications requiring repeatable motion profiles and tight process control.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | 2-Way Proportional Flow Control Valve |
| Model Designation | 2FRE16-40/125LBK4M |
| Material Number | R900927478 |
| Nominal Size | NG16 (Size 16) |
| Nominal Flow Setting | 125 L/min (pressure-compensated metering) |
| Operating Pressure | Standard Industrial Grade (Up to 315 bar rated) |
| Actuation Type | Proportional Solenoid with Position Feedback |
| Mounting & Connection | Standard ISO / Manufacturer Interface (Subplate Mounting) |
Engineering Features & Advantages
- Precision Flow Metering: The spool-and-sleeve metering geometry delivers infinitely variable flow control proportional to the electrical command signal, ensuring accurate and repeatable actuator velocity regulation.
- Pressure-Compensated Stability: Integrated pressure compensation maintains constant output flow regardless of fluctuating load or system pressure, eliminating speed drift in critical motion sequences.
- Fast Dynamic Response: Optimized solenoid and spool design provide rapid response times for high-cycle industrial processes requiring precise flow transitions.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction resistant to contamination and thermal stress.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth standards, ensuring drop-in interchangeability.
Typical Industrial Applications
This proportional flow control valve is widely deployed in plastic injection molding machines for precise injection and clamping speed control, metallurgical presses requiring accurate ram velocity profiling, CNC machine tools and machining centers for smooth feed axis motion, and general hydraulic test stands and simulation equipment where repeatable flow regulation is essential for process quality and system stability.
PRODUCT IMAGES


Rexroth 2FRE16-40/125LBK4M / R900927478 2-Way 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 2FRE16-40/125LBK4M / R900927478 Two-Way Flow Control Valve. This Germany-made hydraulic component features a pressure-compensated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.