Overview
The Fireye 4-314-1 is a replacement ultraviolet (UV) sensing tube engineered for critical flame detection in combustion safety systems. Designed specifically for Fireye 45UV5 flame scanners, this high-sensitivity component ensures accurate flame monitoring in high-demand burner environments as a critical part of industrial combustion safety. The tube detects ultraviolet radiation produced by an active flame and transmits a signal to the associated scanner electronics. This genuine OEM replacement maintains the integrity of flame safeguard systems in commercial boilers, industrial furnaces, and process heating applications.
Key Features
- High-sensitivity UV detection: Precise spectral response essential for differentiating between actual burner flame and background radiation or refractory glow.
- Direct drop-in replacement: Meets original equipment manufacturer specs for UV flame sensors in commercial boilers and industrial furnaces.
- Prevents false shutdowns: Proper maintenance using this genuine ultraviolet flame detector component prevents nuisance shutdowns and maintains the integrity of the flame safeguard system.
- Long-term reliability: Engineered for stable operation across extended service intervals in demanding industrial environments.
- Sealed gas-filled tube design: A sealed, gas-filled, UV-sensitive tube containing two electrodes connected to a source of AC voltage.
Technical Specifications
The 4-314-1 is optimized for specific scanner models and engineering code requirements. The tube is engineered to operate reliably within the specific voltage range provided by the Scanner Power Supply without premature degradation. Replacement is recommended when intermittent flame signals occur or the scanner fails to detect the pilot flame despite proper alignment and cleaning.
Typical Applications
- Commercial boiler flame monitoring and control
- Industrial furnace ignition safety systems
- Gas, oil, and dual-fuel burner applications
- Process heating equipment with flame safeguard requirements
- Retrofit and preventive maintenance of existing 45UV5 scanner installations
Compatibility & Replacements
Compatible With
- 45UV5-1000, 45UV5-1010, and 45UV5-1101 scanners with Engineering Code 6 or higher
- 45UV5-1005, 45UV5-1009, 45UV2, 45UV3-1050 scanners
- C-Series, D-Series, and Flame-Monitor controls
Replaces / Drop-In Replacement For
- Original Fireye 4-314-1 (factory original equipment)
- Used in Firetron flame scanner assemblies (OEM equivalent)
Works With
- Fireye flame safeguard control systems and relays
- Boiler control loops requiring UV-based flame detection
- Burner management systems utilizing 45UV series architecture
















