Product Overview
The Rexroth FD 32 FB21/400B06V-078 (Material No. R901049531) is a two-way pressure-compensated flow control valve from the Rexroth FD series, designed to deliver a constant, preset flow rate independent of load pressure and system pressure fluctuations. The valve combines a pressure compensator with a manually adjustable metering throttle, maintaining accurate flow regulation across a wide operating range. With a size 32 (NG32) subplate mounting interface and a 400 bar pressure rating, it is engineered for demanding industrial hydraulic circuits where precise actuator speed control and repeatable flow metering are critical to process quality and machine safety.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Compensated Flow Control Valve (Hydraulic Valve) |
| Model Designation | FD 32 FB21/400B06V-078 / R901049531 |
| Nominal Size | NG32 (Size 32) |
| Operating Pressure | Up to 400 bar (as designated by model code) |
| Flow Regulation Principle | Pressure compensator with adjustable metering throttle |
| Adjustment Type | Manual adjustment (spindle / set screw with locknut) |
| Mounting & Connection | Subplate mounting, ISO 5781 / Rexroth standard interface |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP) per DIN 51524 |
Engineering Features & Advantages
- Precision Flow Metering: The integrated pressure compensator maintains the pressure drop across the metering throttle at a constant value, ensuring the set flow rate remains stable regardless of varying load or system pressure.
- Load-Independent Regulation: Delivers consistent actuator speed even under fluctuating working conditions, improving process repeatability in critical motion sequences.
- Robust Spool and Sleeve Design: Hardened, precision-matched spool and sleeve assembly provides low leakage, long service life, and reliable performance in continuous industrial duty.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a high-pressure cast body rated to 400 bar.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, including the R901049531 material number for unambiguous identification.
Typical Industrial Applications
This pressure-compensated flow control valve is typically deployed in plastic injection molding machines for precise injection and clamping speed control, metallurgical presses and rolling mill hydraulics, CNC machine tool feed and positioning circuits, and general heavy industrial power units where accurate, load-independent flow regulation is required. It is also well suited to construction and marine hydraulic systems demanding dependable metering performance under high pressure.
PRODUCT IMAGES
REXROTH FD 32 FB21/400B06V-078 / R901049531 Pressure Compensated 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 FD 32 FB21/400B06V-078 / R901049531 Pressure Compensated Flow Control Valve. This Germany-made hydraulic component features a pressure-compensated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
