Product Overview
The ATOS SDHU-0631/2 20 is a high-performance solenoid-operated directional control valve engineered by Atos (a globally recognized brand in electrohydraulic systems) for precise control of start, stop, and direction of hydraulic fluid flow in industrial circuits. This valve belongs to the SDHU series, a family of direct-acting, spool-type directional valves designed for standard industrial applications requiring reliable switching performance and leak-tight sealing. The SDHU-0631/2 20 features a nominal size 06 (NG6 / CETOP 3 / ISO 4401-03) interface, making it a compact yet robust solution for manifold or subplate mounting. Its solenoid actuation allows for rapid, repeatable electrical control, while the spring-offset or spring-centered spool design ensures a defined fail-safe position upon de-energization. The valve is ideally suited for integration into centralized hydraulic power units, machine tool control blocks, and automated production lines where precise directional control and long service life are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Control Valve (Standard Spool Type) |
| Model Designation | SDHU-0631/2 20 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03 / NFPA D03) |
| Operating Pressure | Up to 350 bar (max. working pressure at P, A, B ports; T port limited to 160 bar) |
| Rated Flow | Up to 40 L/min (dependent on spool type and pressure drop) |
| Spool Configuration | 3-position, 4-way (3/4) — center condition per model code suffix /2 (e.g., closed center, tandem, float) |
| Actuation Type | Dual solenoid, direct-acting, spring return / spring centered |
| Solenoid Voltage | Standard industrial DC or AC (e.g., 24V DC, 110V AC, 220V AC — consult factory for specific coil) |
| Electrical Connection | DIN 43650 connector (ISO 4400) or Hirschmann plug |
| Mounting & Connection | Subplate mounting, ISO 4401-03-02-0-05 interface, 4 x M5 mounting bolts |
Engineering Features & Advantages
- Precision Performance: The solenoid directional control valve (standard spool type) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- 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: Exact dimensional and functional compatibility with original ATOS OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 350 bar and flow rates up to 40 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The valve is ideally suited for integration into centralized hydraulic power units, machine tool control blocks, and automated production lines where precise directional control and long service life are critical.
PRODUCT IMAGES
ATOS SDHU-0631/2 20 Solenoid Directional Control 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 ATOS SDHU-0631/2 20 Solenoid Directional Valve. This Italian-made hydraulic component features a reliable spool-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.