Product Overview
The ATOS DLHZO-TEB-SN-NP-040-L71/I 20 is a high-performance proportional solenoid directional valve manufactured by Atos, a global leader in electrohydraulic control technology. This valve operates on a direct-operated proportional solenoid principle, utilizing a precision-machined spool and sleeve assembly to provide infinitely variable directional and flow control of hydraulic fluid. The DLHZO series is engineered for applications demanding precise velocity and position control of actuators, offering excellent dynamic response and low hysteresis. With its robust construction and advanced solenoid design, this valve serves as a critical interface between electronic control systems and hydraulic power circuits in demanding industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Solenoid Directional Valve |
| Model Designation | DLHZO-TEB-SN-NP-040-L71/I 20 |
| Operating Pressure | Up to 350 bar (5075 psi) maximum working pressure |
| Nominal Flow Rate | 40 L/min at Δp = 10 bar (valve size 040) |
| Mounting & Connection | ISO 4401 standard subplate mounting; DIN 43650 solenoid connector |
| Actuation Type | Proportional solenoid with integrated position transducer (L71/I) |
| Spool Configuration | 3-position, 4-way, closed center (SN configuration) |
| Electrical Supply | 24 VDC nominal solenoid voltage |
Engineering Features & Advantages
- Precision Performance: The DLHZO series features a high-resolution proportional solenoid with an integrated position transducer (L71/I), enabling closed-loop control of spool position for exceptional repeatability and minimal hysteresis, ensuring accurate flow metering and actuator velocity control.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, the valve body and spool are manufactured from hardened, wear-resistant materials, providing long service life even in high-cycle applications.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Atos OEM standards, including ISO 4401 mounting patterns and standard electrical interfaces, allowing drop-in replacement without system modification.
- Advanced Control Electronics: Compatible with Atos digital drivers for optimal performance tuning, including ramp generation, gain adjustment, and fault diagnostics, facilitating seamless integration into modern PLC-controlled systems.
- Low Leakage Design: Precision spool-to-sleeve clearance minimizes internal leakage, improving energy efficiency and reducing heat generation in hydraulic circuits.
Typical Industrial Applications
This proportional directional valve is ideally suited for a wide range of heavy industrial scenarios, including plastic injection molding machines requiring precise injection speed and pressure control, metallurgical presses where accurate force and position regulation are critical, CNC machine tools and machining centers for smooth axis movement, and construction & marine hydraulics where reliable directional control
PRODUCT IMAGES



ATOS DLHZO-TEB-SN-NP-040-L71/I 20 Proportional Solenoid Directional 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 DLHZO-TEB-SN-NP-040-L71/I 20 Solenoid Directional Proportional Valve. This Italian-made hydraulic component features a proportional spool design, delivering precise, leak-free fluid control for heavy-duty industrial systems.