Product Overview
The Rexroth Z2FSK 6-2-12/2QV (Material No. R900564521) is a high-precision twin throttle check valve designed for modular sandwich mounting within industrial hydraulic systems. As a member of the Rexroth Z2FSK series, this valve is engineered to independently meter and regulate the flow rate of hydraulic fluid in two separate actuator lines while permitting free reverse flow through integrated check valve elements. The Z2FSK 6-2-12/2QV is a size 6 (NG6 / CETOP 3) modular component that mounts directly between a directional control valve and its subplate, providing precise two-way speed control for double-acting cylinders and hydraulic motors. Its dual throttle design allows independent adjustment of advance and return speeds, making it an essential flow control solution for demanding industrial motion control applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Twin Throttle Check Valve (Flow Control & Modular Valve) |
| Model Designation | Z2FSK 6-2-12/2QV |
| Material Number | R900564521 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Flow Rate Range | Up to 60 L/min (dependent on throttle setting) |
| Adjustment Type | Manual spindle adjustment with locknut (2QV configuration) |
| Mounting & Connection | Modular sandwich plate design, ISO 4401-03 interface |
| Seal Material | NBR (Buna-N) standard; FKM available on request |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HLPD per DIN 51524) |
| Fluid Temperature Range | -20°C to +80°C (NBR seals) |
Engineering Features & Advantages
- Precision Performance: The twin throttle check valve (flow control & modular valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
Its dual throttle design allows independent adjustment of advance and return speeds, making it an essential flow control solution for demanding industrial motion control applications.
PRODUCT IMAGES
REXROTH Z2FSK 6-2-12/2QV / R900564521 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 Z2FSK 6-2-12/2QV / R900564521 Pilot Operated Check Valve. This Germany-made hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.