Atos Proportional Valve | DHZO DKZOR DLHZO | QVKZOR-AE-10/90 | QVKZOR-TE-10/65

The Atos Proportional Directional Valve range from LIC Hydraulic is the premier choice for advanced electro-hydraulic control. Covering everything from the compact DHZO (Size 06) to the high-capacity DKZOR (Size 10), these valves provide precise regulation of fluid flow and direction. Models like the QVKZOR-AE-10/90 (Analog Electronics) and QVKZOR-TE-10/65 (Digital Electronics) feature Integrated Quality Electronics (OBE) for superior dynamic performance. We offer 100% drop-in replacements that match original Atos specifications for ISO 4401 mounting, electrical pinouts, and response curves.

Technical Highlights

• Sizes: ISO 4401-03 (Size 06) and ISO 4401-05 (Size 10).

• Electronics: AE (Analog OBE), TE (Digital OBE), or SN (Non-integrated).

• Max Pressure: Up to $350\text{ bar}$ ($5075\text{ psi}$).

• Flow Rates: Customized spools ranging from $1\text{ L/min}$ to over $100\text{ L/min}$.

Core Advantages

• Superior Dynamic Response: Engineered with low-inertia spools and high-force proportional solenoids, Atos valves achieve rapid frequency responses, essential for precision high-speed machinery.

• Integrated Digital Control (TE): The TE-series allows for software-based parameter tuning, diagnostics, and fieldbus connectivity (CanOpen, EtherCAT), providing full transparency into hydraulic performance.

• Minimal Hysteresis & High Linearity: Precision-lapped spool-sleeve combinations ensure that the flow output accurately reflects the input signal, maintaining process consistency in sensitive applications.

• Rugged & Reliable Construction: Designed to withstand the vibration and thermal cycles of industrial environments, with coils rated for 100% continuous duty and IP67-grade protection.

Expert Maintenance Tips

• Filtration is Non-Negotiable: Proportional valves have extremely tight tolerances ($< 5\text{ }\mu\text{m}$). Maintain oil cleanliness at ISO 16/14/11 or better. Using a dedicated non-bypass pressure filter upstream is highly recommended.

• Electrical Shielding: To prevent signal drift, always use shielded cables for the control signals and ensure the 7-pin or 12-pin connectors are fully seated and sealed.

• Null Adjustment: If the actuator “drifts” at a zero-signal input, use the electronic offset adjustment on the AE/TE amplifier to re-center the spool. Never attempt to mechanically force the spool during operation.