Product Overview
The ATOS QVHZO-TEB-SN-NP-06/45/FI 20 is a high-performance proportional flow control valve engineered by Atos, a global leader in electrohydraulic motion control technology. Operating on a two-stage proportional design, this valve delivers infinitely variable flow regulation proportional to the electrical input signal, enabling precise velocity control of hydraulic actuators in demanding industrial systems. The QVHZO series integrates a high-response proportional solenoid with a precision-machined spool and sleeve assembly, ensuring exceptional metering accuracy, minimal hysteresis, and fast dynamic response. With a nominal size of 06 (NG6 / CETOP 3) and a rated flow capacity of 45 L/min, this valve is specifically configured for pressure-compensated flow control applications where load-independent speed regulation is critical. The FI 20 designation indicates factory-set flow calibration and a specific amplifier interface, making this unit a direct-fit solution for Atos-standard proportional control architectures.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Flow Control Valve (Two-Stage, Pressure-Compensated) |
| Model Designation | QVHZO-TEB-SN-NP-06/45/FI 20 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Rated Flow Rate | 45 L/min (nominal, pressure-compensated) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Control Signal | Proportional solenoid, current-controlled (0–10 V / 4–20 mA via amplifier) |
| Mounting & Connection | Subplate mounting, ISO 4401-03 / CETOP 3 interface |
| Seal Material | NBR (Buna-N) standard; FKM available on request |
| Fluid Compatibility | Mineral oil-based hydraulic fluids (ISO VG 32–68) |
| Ambient Temperature Range | -20°C to +70°C |
Engineering Features & Advantages
- Precision Flow Metering: The two-stage proportional design with pressure compensator ensures load-independent flow control, maintaining consistent actuator speed regardless of varying system pressure or load conditions.
- Fast Dynamic Response: High-response proportional solenoid and optimized spool geometry deliver rapid signal-to-flow response, enabling high-cycle machine operation with minimal lag.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original ATOS standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
With a nominal size of 06 (NG6 / CETOP 3) and a rated flow capacity of 45 L/min, this valve is specifically configured for pressure-compensated flow control applications where load-independent speed regulation is critical.
PRODUCT IMAGES
ATOS QVHZO-TEB-SN-NP-06/45/FI 20 Proportional Flow 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 QVHZO-TEB-SN-NP-06/45/FI 20 Proportional Solenoid Directional Valve. This Italian-made hydraulic component features a precise proportional spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.