Product Overview
The Rexroth Z2FSK 6-2-11/2QV (Material No. R900564521) is a high-precision twin throttle check valve designed for sandwich plate mounting within modular hydraulic control systems. As a member of the Rexroth Z2FSK series, this valve is engineered to independently regulate the flow rate in both the supply and return lines of a hydraulic circuit, providing precise speed control of actuators. The integrated check function allows unrestricted free flow in the reverse direction, ensuring that the metered flow is bypassed during reverse operation. With a nominal size of NG6 (CETOP 3 / ISO 4401-03), this valve is a critical component for machine builders requiring accurate, repeatable motion control in compact manifold assemblies.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Twin Throttle Check Valve (Flow Control & Modular Valve) |
| Model Designation | Z2FSK 6-2-11/2QV |
| 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 (2QV variant) |
| Mounting & Connection | Sandwich Plate / Modular Interface (ISO 4401-03) |
| Seal Material | NBR (Nitrile Rubber) – Standard |
| Fluid Compatibility | Mineral Oil (HL, HLP) per DIN 51524 |
Engineering Features & Advantages
- Dual-Line Flow Control: Independently adjustable throttle cartridges for both the inlet (P to A) and outlet (B to T) paths, enabling precise tuning of actuator speed in both directions of travel.
- Integrated Check Function: Allows free reverse flow to bypass the throttle restriction, preventing cavitation and ensuring rapid return strokes without compromising metered control.
- Modular Sandwich Design: Compact NG6 interface allows direct stacking between a directional control valve and the manifold base, reducing piping complexity and leak points.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
R900564521) is a high-precision twin throttle check valve designed for sandwich plate mounting within modular hydraulic control systems.
PRODUCT IMAGES
REXROTH Z2FSK 6-2-11/2QV / 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 6-2-11/2QV / 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.