Product Overview
The Rexroth HSZ 06 A106-3X/M00 (Material Number: R900516519) is a precision-engineered hydraulic sandwich plate valve block designed for modular system integration within industrial hydraulic circuits. Manufactured by Bosch Rexroth, a global leader in drive and control technology, this component belongs to the HSZ series of intermediate sandwich plates, which are mounted between a directional control valve and its subplate to provide additional flow control or circuit logic functions. The HSZ 06 size designation corresponds to a nominal NG6 (CETOP 3 / ISO 4401-03) interface, ensuring direct compatibility with standard industrial valve stacks. The “A106” flow control cartridge integrated into this block provides a fixed or adjustable throttling function, enabling precise regulation of actuator speed or flow distribution within a multi-function manifold assembly. The “3X” series designation indicates a proven, field-tested generation of Rexroth modular valve technology, while the “M00” suffix denotes the standard configuration without special options. This sandwich plate valve block plays a critical role in compacting complex hydraulic control architectures, reducing piping, minimizing leak points, and enabling rapid maintenance or circuit modification in high-demand industrial machinery.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Sandwich Plate Valve Block (Modular Flow Control Valve) |
| Model Designation | HSZ 06 A106-3X/M00 |
| Material Number | R900516519 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Operating Pressure | Up to 315 bar (standard industrial grade for NG6 modular valves) |
| Flow Function | A106 flow control cartridge (throttle / restrictor function) |
| Mounting & Connection | Sandwich mounting per ISO 4401-03 / CETOP 3 / DIN 24340-A6 |
| Port Pattern | Standard P, T, A, B, X, Y ports with through-passage for stacking |
| Sealing | NBR (Buna-N) O-rings standard; FKM available on request |
| Body Material | High-strength cast iron / steel alloy |
| Series | 3X (Rexroth modular valve generation) |
Engineering Features & Advantages
- Precision Performance: The hydraulic sandwich plate valve block (modular flow control 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.
- Rated Capability: Rated for pressure ratings up to 315 bar, supporting stable operation across the full working range.
Typical Industrial Applications
This sandwich plate valve block plays a critical role in compacting complex hydraulic control architectures, reducing piping, minimizing leak points, and enabling rapid maintenance or circuit modification in high-demand industrial machinery.
PRODUCT IMAGES




Rexroth HSZ 06 A106-3X/M00 / R900516519 Hydraulic Sandwich Plate Valve Block
âš¡ 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 HSZ 06 A106-3X/M00 / R900516519 Solenoid Directional Valve. This Germany-made 24V DC hydraulic component features a 4-way 3-position design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.