Fireye 35-69 Heat Insulator

The Fireye 35-69 Heat Insulator is a critical thermal barrier designed for high-heat industrial burner environments. This 1/2" NPT heat insulator is specifically engineered to protect Fireye 48PT and Fireye UV1A flame detectors from convective and conductive heat transfer. By decoupling the scanner from the sight pipe, the 35-69 prevents sensor overheating, which is the leading cause of premature failure in ultraviolet flame scanners and infrared flame detectors. This OEM component ensures that your Flame Safeguard system maintains signal integrity and consistent combustion monitoring. Constructed from high-durability insulating material, it is an essential specification for technicians servicing commercial and industrial boilers or any Burner Management System (BMS). Proper installation of this Fireye flame scanner accessory helps avoid nuisance shutdowns and extends the operational life of the sensor head in extreme ambient conditions.

Key Benefits for Technicians

• Thermal Protection: Significantly reduces heat conduction from the burner housing to the 48PT and UV1A sensors.
• Standardized Threading: Features a 1/2" NPT connection for seamless integration into existing sight pipes and scanner mounts.
• OEM Reliability: Genuine Fireye 35-69 ensures dimensional accuracy and material compatibility that generic alternatives lack.
• System Longevity: Prevents thermal degradation of sensitive electronic components within the scanner housing.
• Universal Application: Compatible with both infrared (48PT) and ultraviolet (UV1A) detection technologies.

Common Questions

When should a 35-69 heat insulator be replaced?
Technicians should inspect the insulator during annual boiler teardowns. If you notice cracks in the material or if the scanner body is exceeding its rated ambient temperature (typically 125??F/50??C for many models), the insulator should be replaced to maintain proper thermal isolation.

Is this compatible with 1" NPT scanner mounts?
No, the 35-69 is specifically sized for 1/2 inch NPT connections. If you are using a 1" sight pipe, you will require the appropriate reducer or a different insulator model designed for that specific diameter.

Does this insulator affect the scanner's field of view?
When installed correctly as a Fireye burner part, the internal bore of the 35-69 is designed to allow the flame detector an unobstructed view of the pilot or main flame, ensuring no loss in flame signal strength.

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.