Maxon 18117-N Flame Rod

The Maxon 18117-N Flame Rod is a critical industrial combustion safety component engineered for high-performance flame rectification. As a direct, identical replacement for the legacy 18117 model, this 7.125-inch rod is specifically designed for Maxon APX line style burners, though it also integrates seamlessly with NP AIRFLO and TUBE-O-FLAME series. Constructed with 95% pure Alumina ceramic insulation and a Kanthal D electrode, it maintains structural rigidity at temperatures up to 2700°F. For field flexibility, this 1/4" NPT flame sensor can be trimmed to length, allowing technicians to optimize the flame signal and minimize nuisance faults across varying low and high-fire conditions. The 0.197-inch diameter Ni-Chrome probe ensures precise sensing of the microamp DC current required to prove stable ignition and prevent unsafe gas flow. Whether you are maintaining Maxon industrial burners in process heaters or gas dryers, the 18117-N provides the dependable flame detection required for 24/7 industrial operations.

• Field-Adjustable Length: The 7.125-inch sensing rod can be trimmed in the field to match specific burner profiles and flame lengths.
• High-Temperature Durability: Engineered with Alumina ceramics and Kanthal D electrodes to withstand thermal stress up to 2700°F.
• Precise Rectification: Optimized for consistent DC microamp signal feedback to Maxon burner management systems.
• Standard Fitting: Utilizes a 1/4" NPT threaded connection with a locknut for secure, airtight mounting in industrial manifolds.
• Direct Compatibility: Drop-in replacement for the discontinued Maxon 18117, ensuring zero downtime during retrofits.

Which Maxon burner models are compatible with the 18117-N?
This flame rod is primarily used on Maxon APX burners (models 0.5 through 5.0). It is also frequently found in NP AIRFLO, RG AIRFLO, and TUBE-O-FLAME assemblies.

Can I use a wire brush to clean the 18117-N flame rod?
Yes. Technicians should use steel wool or a fine wire brush to remove carbon deposits or oxidation. Avoid sandpaper or heavy abrasives, as they can scratch the probe and accelerate future fouling.

What is the difference between the 18117 and the 18117-N?
The units are functionally and technically identical. Maxon updated the part numbering to 18117-N, but all specifications, dimensions, and mounting threads remain the same.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.