Product Overview
The ATOS QVKZOR-A-10/90 20 is a high-performance proportional flow control valve engineered by Atos (a recognized leader in electrohydraulic control technology). This component functions as a two-way, pressure-compensated proportional flow control valve, designed to regulate hydraulic fluid flow rates with high precision and repeatability. Unlike standard directional valves, the QVKZOR series utilizes a sophisticated pressure compensator to maintain a constant flow rate regardless of variations in load pressure or system pressure. This makes it an ideal solution for open-loop control systems requiring accurate velocity control of actuators, such as hydraulic motors and cylinders, ensuring smooth acceleration and deceleration profiles in demanding industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Flow Control Valve (Pressure Compensated) |
| Model Designation | QVKZOR-A-10/90 20 |
| Nominal Size | NG10 (CETOP 5 / ISO 4401 Size 10) |
| Max Regulated Flow | 90 L/min (dependent on pressure drop) |
| Operating Pressure | Up to 350 bar (5075 psi) dynamic / 420 bar static |
| Control Signal | Proportional Solenoid with Integrated Electronics (Option /A) |
| Mounting & Connection | Subplate Mounting (ISO 4401-05-05-0-05) |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HV) |
Engineering Features & Advantages
- Pressure Compensation: The integrated pressure compensator ensures that the regulated flow remains constant regardless of load fluctuations, providing superior stability for actuator movement.
- High-Resolution Proportional Control: The proportional solenoid allows for infinitely variable adjustment of the spool position, enabling precise metering of flow from 0 to 90 L/min.
- Integrated Electronics (Option /A): The “A” designation indicates the valve is equipped with an integral amplifier card, simplifying wiring, reducing installation time, and improving signal-to-noise immunity in harsh industrial environments.
- Robust Construction: Manufactured with hardened steel spools and sleeves, the QVKZOR valve is designed for high-cycle fatigue resistance and long service life in continuous operation.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Atos QVKZOR series specifications, ensuring drop-in replacement without system modification.
Typical Industrial Applications
This proportional flow control valve is commonly utilized in heavy industrial scenarios requiring precise speed control, including plastic injection molding machines (for injection and clamping speed), metallurgical presses (for controlled pressing force), CNC machine tools (for feed rate control), and construction & marine hydraulics (for winch and crane operation). It is also frequently found in
PRODUCT IMAGES
ATOS QVKZOR-A-10/90 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 QVKZOR-A-10/90 20 Proportional Directional Control Valve. This Italian-made hydraulic component features a precise proportional spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.