Product Overview
The DEHAS D-QR-02-200-0/25 is a precision-engineered proportional gas valve designed for accurate flow and pressure regulation of gaseous media in industrial process systems. Operating on a direct-acting proportional solenoid principle, this valve delivers infinitely variable control proportional to the electrical input signal, enabling seamless modulation of gas flow rates. Manufactured by DEHAS, a recognized name in fluid control technology, the D-QR-02-200-0/25 is engineered for demanding process environments where precise gas metering, fast response, and long-term reliability are critical. Its compact 02-size body and robust construction make it an ideal choice for integration into burner management systems, industrial gas trains, and automated process control loops.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Gas Valve (Process & Pneumatic Valve) |
| Model Designation | D-QR-02-200-0/25 |
| Nominal Size | DN02 (02 body size) |
| Operating Pressure | Up to 200 bar (rated inlet pressure) |
| Flow Characteristic | Proportional, infinitely variable (0–25 L/min nominal control range) |
| Actuation Type | Proportional solenoid, direct-acting |
| Mounting & Connection | Standard ISO / Manufacturer Interface (subplate or inline mounting) |
| Media Compatibility | Industrial gases, neutral gaseous media |
Engineering Features & Advantages
- Precision Proportional Control: The direct-acting proportional solenoid delivers smooth, infinitely variable flow modulation proportional to the input current, enabling accurate gas metering and repeatable process control.
- High-Pressure Capability: Rated for inlet pressures up to 200 bar, the D-QR-02-200-0/25 is suited for high-pressure gas regulation tasks where standard valves would be unsuitable.
- Fast Dynamic Response: Optimized spool and solenoid geometry ensures rapid response times, critical for closed-loop process control and burner modulation applications.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with wear-resistant internal components and a robust housing that withstands vibration, thermal cycling, and contaminated environments.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original DEHAS OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
The DEHAS D-QR-02-200-0/25 proportional gas valve is deployed across a range of heavy industrial scenarios, including industrial burner management and combustion control systems, gas-fired metallurgical furnaces and heat treatment lines, process gas dosing and blending skids in the chemical and petrochemical industry, and automated pneumatic control loops in plastic injection molding and CNC machine tool systems. Its combination of high-pressure rating, precise proportional
PRODUCT IMAGES
DEHAS D-QR-02-200-0/25 Proportional Gas Valve
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- 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
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