Product Overview
The Rexroth FTDRE 4 K1X/30AG24K40V-8 (Material Number: R900771731) is a high-performance, direct-operated proportional pressure reducing valve designed for precise, infinitely variable pressure control in demanding industrial hydraulic systems. As part of the Rexroth FTDRE series, this valve operates on a proven proportional solenoid actuation principle, converting an electrical input signal into a proportional hydraulic output pressure. The valve reduces a higher inlet pressure to a lower, regulated outlet pressure that is directly proportional to the solenoid current, enabling accurate, repeatable pressure modulation for closed-loop and open-loop control architectures. With a size 4 (NG4) mounting interface and a 30 bar pressure rating, this valve is engineered for compact, high-precision circuits where reliable pressure reduction and dynamic response are critical. The integrated 24 VDC proportional solenoid (AG24) and K40V coil designation ensure compatibility with standard industrial control amplifiers and PLC-based drive electronics.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Reducing Valve (Direct-Operated) |
| Model Designation | FTDRE 4 K1X/30AG24K40V-8 / R900771731 |
| Valve Size | NG4 (Size 4) |
| Maximum Regulated Pressure | 30 bar (secondary pressure) |
| Actuation Type | Proportional Solenoid, 24 VDC (AG24) |
| Coil Designation | K40V (40 mm coil, high-force proportional) |
| Operating Pressure | Standard Industrial Grade (up to rated 30 bar secondary) |
| Mounting & Connection | Standard ISO / Rexroth NG4 Interface |
| Control Signal | Proportional current (0–800 mA typical, via Rexroth amplifier) |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HFC) |
Engineering Features & Advantages
- Precision Proportional Control: The direct-operated spool and proportional solenoid deliver infinitely variable pressure reduction with high resolution and minimal hysteresis, ensuring accurate pressure regulation across the full 0–30 bar range.
- Fast Dynamic Response: The K40V high-force proportional solenoid and optimized spool geometry provide rapid response times, making the valve suitable for dynamic pressure control loops and high-cycle industrial processes.
- 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
The integrated 24 VDC proportional solenoid (AG24) and K40V coil designation ensure compatibility with standard industrial control amplifiers and PLC-based drive electronics.
PRODUCT IMAGES
REXROTH FTDRE 4 K1X/30AG24K40V-8 / R900771731 Proportional Pressure Reducing 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 FTDRE 4 K1X/30AG24K40V-8 / R900771731 Solenoid Directional Seat Valve. This Germany-made 24V DC hydraulic component features a poppet-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
