Industrial Flame Detectors
Optical Flame Detection and Fire Safety Solutions for High-Risk Industrial Facilities
Industrial flame detectors are critical safety devices for early fire detection in petrochemical plants, LNG facilities, power generation sites, aircraft hangars, storage tanks and hazardous industrial processes.
Optical flame detectors use UV, IR, UV/IR, Dual IR and Multispectrum IR technologies. They identify real flames quickly, reduce false-alarm risk and integrate with fire and gas safety systems.

Fast Flame Detection
Early flame detection helps fire and gas safety systems respond quickly in critical processes.
False-Alarm Reduction
Advanced optical technologies, such as Multispectrum IR, can reduce false alarms from sunlight, arc welding and artificial light sources.
Industrial Integration
Flame, gas and smoke detection equipment can integrate with fire and gas panels and process control systems.
What Is a Flame Detector?
A flame detector is an optical sensing device. It detects ultraviolet or infrared radiation from an early-stage fire and sends an alarm signal to fire and gas safety systems. These devices support early intervention where fire can grow rapidly.
Industrial flame detectors form an important part of safety system design. They can address risks from flammable gas, vapour, hydrocarbon fires, fuel leaks, process fires and open flames.
How Industrial Flame Detectors Work
Optical Detection
First, the detector monitors UV or IR radiation emitted by a flame.
Signal Analysis
Next, the selected detector technology electronically analyses the detected radiation.
Alarm Generation
Then, when it identifies a real flame condition, the detector sends an alarm signal to the control system.
System Action
Finally, the alarm can trigger warning, shutdown, fire suppression, evacuation or process safety scenarios.
Flame Detection Technologies
| Technology | Detection Method | Application Advantage |
|---|---|---|
| UV | Detects ultraviolet radiation from a flame. | Can suit applications that require a rapid response. |
| IR | Measures infrared radiation from carbon-based fires. | Can serve hydrocarbon fire-risk applications. |
| UV/IR | Evaluates UV and IR signals together. | Provides more selective detection than single-sensor systems. |
| Dual IR | Analyses two different infrared signal bands. | Provides advanced analysis to help reduce false alarms. |
| Multispectrum IR | Analyses three or more infrared wavelengths at the same time. | Helps minimise false alarms from sunlight, arc welding and artificial light sources. |
Fire and Gas Detection Product Range
UV, IR, UV/IR, Dual IR and Multispectrum IR optical detection technologies.
Infrared, catalytic bead, open-path and acoustic gas detection options.
Electrochemical and process-specific detection technologies.
Explosion-proof smoke detection solutions.
An addressable, fault-tolerant safety controller that can communicate with process control systems.
Combining flame, gas, smoke and hazard-mitigation equipment in one safety architecture.
System Diagram and Technical Layout
This area can show the technical layout of flame detectors around process equipment, tank farms, hangars, gas turbines, LNG facilities or hazardous areas.
Detector selection and placement should consider fire type, field of view, detection distance, environmental conditions, false-alarm sources, hazardous-area classification and the fire and gas safety scenario.

Applications and Industries
Standards and Certification Topics
When selecting flame and gas detection products for high-risk industrial facilities, assess the relevant international performance and safety certifications for the selected detector.
Industrial Flame Detectors: Frequently Asked Questions
What is the difference between UV, IR and Multispectrum IR technologies in optical flame detectors?
UV detectors detect ultraviolet radiation. IR detectors measure infrared radiation from carbon-based fires. Multispectrum IR detectors analyse three or more infrared wavelengths at once. Therefore, they can reduce false-alarm risk from sunlight, arc welding and artificial light sources.
What is the industrial advantage of a fire and gas safety controller?
An addressable, fault-tolerant fire and gas safety controller can monitor flame detectors, gas detectors, smoke detectors and third-party field devices within one system architecture. As a result, it helps centrally manage alarm, notification, shutdown and suppression scenarios in high-risk processes.
Why are SIL 2 and global approvals important for industrial flame detectors?
SIL 2 and international approvals are important when evaluating a detector’s suitability, performance and reliability for high-risk industrial safety functions. In addition, ATEX, IECEx, FM, CSA and similar approvals play a key role when selecting equipment for hazardous-area applications.
Which flame detector can help reduce false alarms in petrochemical and LNG facilities?
In challenging environments such as petrochemical and LNG facilities, Multispectrum IR flame detectors can suit areas with many false-alarm sources. They analyse multiple IR wavelengths. This helps distinguish real flames from sunlight, hot surfaces, artificial light and arc welding effects.
What needs do flame detection systems address in offshore and aviation applications?
Offshore sites, aircraft hangars and aviation applications require fast flame detection, high false-alarm immunity, resistance to harsh conditions and safety-system integration. For this reason, evaluate detector technology, environmental conditions and the fire scenario together.
Request Information on Industrial Flame Detectors
Flame detector selection should consider fire type, detection distance, field of view, hazardous-area classification, false-alarm sources, environmental conditions, SIL requirements and the fire and gas safety scenario.
You can request a technical assessment for industrial flame detection, gas detection and fire and gas safety systems.


