Product Overview
The Rexroth 2FRE 6B-22/25QK4MV (Material Number R900731870) is a high-performance 2-way proportional flow control valve from the Bosch Rexroth 2FRE series. Engineered for precise, infinitely variable flow regulation, this valve operates on a proven pressure-compensated, 2-way cartridge design that maintains a constant commanded flow rate independent of load pressure fluctuations. The proportional solenoid actuator translates an electrical current signal into a proportional spool stroke, enabling accurate, repeatable flow metering in demanding industrial hydraulic circuits. With a nominal size of NG6 and a maximum regulated flow of 25 L/min, the 2FRE 6B-22/25QK4MV is ideally suited for systems requiring smooth velocity control of actuators, precise feed rates, or synchronized motion sequences. As a direct-fit Rexroth original component, it delivers the engineering integrity, long service life, and system compatibility expected from the global leader in hydraulic drive and control technology.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | 2-Way Proportional Flow Control Valve |
| Model Designation | 2FRE 6B-22/25QK4MV |
| Material Number | R900731870 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Maximum Regulated Flow | 25 L/min |
| Operating Pressure | Up to 315 bar (working pressure) |
| Control Principle | Pressure-compensated 2-way proportional flow control |
| Actuation | Proportional solenoid with integrated position feedback |
| Mounting & Connection | Subplate mounting per ISO 4401-03 / CETOP 3 |
| Seal Material | NBR (standard); FKM available on request |
| Hydraulic Fluid | Mineral oil per DIN 51524 (HL, HLP); other fluids on request |
Engineering Features & Advantages
- Precision Performance: Pressure-compensated 2-way proportional flow control maintains a constant, precisely metered output independent of load pressure fluctuations, ensuring accurate, repeatable performance in demanding industrial circuits.
- 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.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 25 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
With a nominal size of NG6 and a maximum regulated flow of 25 L/min, the 2FRE 6B-22/25QK4MV is ideally suited for systems requiring smooth velocity control of actuators, precise feed rates, or synchronized motion sequences.
PRODUCT IMAGES
Rexroth 2FRE 6B-22/25QK4MV / R900731870 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 2FRE 6B-22/25QK4MV / R900731870 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.