Product Overview
The KROM SCHRODER GIK 40R02-5 is a precision-engineered air/gas ratio control valve designed to maintain a constant, repeatable air-to-gas ratio across the full modulation range of industrial combustion systems. Manufactured by Kromschröder (Honeywell), a globally recognized brand in gas control and combustion technology, this valve operates on a pneumatic-mechanical feedback principle: a control diaphragm senses air pressure from the combustion air blower and positions the gas valve plug proportionally, ensuring the gas flow tracks the air flow with high linearity. This cross-modulation function is essential for achieving stable stoichiometric combustion, minimizing excess air, and reducing NOx and CO emissions in modulating burners. The GIK 40R02-5 is a direct-acting, spring-loaded ratio controller with an integral adjustment mechanism for setting the gas/air ratio offset and gain, making it a critical component in industrial burner trains, boiler firing systems, and process heating equipment.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Air/Gas Ratio Control Valve (Process & Pneumatic Valve) |
| Model Designation | GIK 40R02-5 |
| Nominal Size | DN 40 (1 1/2″) |
| Operating Pressure | Standard Industrial Grade (Up to rated inlet pressure per Kromschröder GIK series) |
| Control Medium | Air (control signal) / Natural Gas, LPG, or other non-aggressive gases (process medium) |
| Ratio Adjustment | Mechanical spring-loaded diaphragm with adjustable setpoint offset and gain |
| Mounting & Connection | Flanged or threaded connection per ISO / Manufacturer Interface |
| Body Material | Die-cast aluminum or cast iron housing (per Kromschröder standard) |
| Sealing | NBR / FKM elastomer seals suitable for fuel gas service |
Engineering Features & Advantages
- Precision Ratio Control: The diaphragm-actuated feedback mechanism delivers highly linear gas/air ratio control across the entire modulation range, ensuring consistent combustion quality from low-fire to high-fire.
- Adjustable Setpoint: Integrated mechanical adjustment allows precise tuning of the gas/air ratio offset and gain to match specific burner characteristics and fuel calorific values.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction resistant to vibration, thermal cycling, and contaminated gas streams.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original KROM standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
The GIK 40R02-5 is a direct-acting, spring-loaded ratio controller with an integral adjustment mechanism for setting the gas/air ratio offset and gain, making it a critical component in industrial burner trains, boiler firing systems, and process heating equipment.
PRODUCT IMAGES
KROM SCHRODER GIK 40R02-5 Air/Gas Ratio 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 KROM SCHRODER GIK 40R02-5 Solenoid Directional Control Valve. This German-made hydraulic component features a spool-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.