Product Overview
The Rexroth Z2FS22-8-31/S (Material No. R900456783) is a high-performance twin throttle check valve designed for precise flow control in demanding industrial hydraulic systems. As part of the Rexroth Z2FS series, this modular sandwich plate valve is engineered to regulate the flow rate of hydraulic fluid in two directions independently, providing exceptional stability and repeatability. The valve operates on a proven throttling principle, where two adjustable throttle cartridges with integrated check valves allow for fine-tuning of actuator speeds in both supply and return lines. Its robust construction and precise metering characteristics make it an essential component for optimizing cycle times and ensuring smooth motion control in complex hydraulic circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Twin Throttle Check Valve (Flow Control & Modular Valve) |
| Model Designation | Z2FS22-8-31/S / R900456783 |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Nominal Flow Rate | Up to 80 L/min per channel (dependent on throttle setting) |
| Mounting & Connection | Sandwich plate design, ISO 4401-05 (NG10) interface |
| Adjustment Type | Manual spindle adjustment with lock nut |
| Seal Material | NBR (Buna-N) standard; FKM optional |
Engineering Features & Advantages
- Precision Flow Metering: Twin throttle cartridges enable independent, stepless adjustment of flow in both directions, ensuring accurate speed control of actuators and smooth deceleration profiles.
- Integrated Check Function: Each throttle is paired with a check valve that permits free flow in the opposite direction, preventing reverse flow and enabling rapid retraction or bypass without affecting the controlled direction.
- Modular Sandwich Design: The valve mounts directly between a directional control valve and a manifold, saving installation space and reducing piping complexity while maintaining full system pressure integrity.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened, wear-resistant internal components that ensure long service life and minimal maintenance.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth standards, ensuring drop-in replacement without modification.
Typical Industrial Applications
This twin throttle check valve is widely used in heavy industrial scenarios requiring precise motion control, such as plastic injection molding machines for mold clamping and injection speed regulation, metallurgical presses for controlled ram advancement, CNC machine tools for feed axis damping, and construction & marine hydraulics for smooth boom and winch operation. Its robust design also suits general automation systems where dual-direction flow tuning is essential for cycle optimization and energy efficiency.
PRODUCT IMAGES
REXROTH Z2FS22-8-31/S / R900456783 Twin Throttle Check 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 Z2FS22-8-31/S / R900456783 Hydraulic Throttle Valve. This Germany-made hydraulic component features a sandwich plate design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.