Early detection and emergency protection

Fire & Gas Systems

AOS Orwell provides integrated fire and gas detection, alarm, control and suppression solutions designed to protect personnel, facilities, critical equipment and the environment. Our solutions combine reliable field detection, intelligent safety-system integration and appropriate emergency-response functions for industrial and hazardous-area applications.

Integrated hazard detection

Protection from initial detection to emergency response

Our Fire & Gas solutions are designed around the hazards, operating conditions and emergency-response requirements of each facility. We integrate detectors, alarm devices, safety control panels, shutdown interfaces and suppression equipment into a coordinated protection system that supports early warning and rapid response.

Detect Rapid identification of flame, gas and smoke hazards

Alarm Clear audible, visual and control-room notification

Isolate Integration with shutdown and emergency-control functions

Suppress Appropriate fire-control solutions for identified hazards

Optical flame detection

Flame Detectors

Our Flame detectors are certified solutions (such as SIL 2/FM/CSA/ATEX/IECEx) for hazardous industrial fire and safety environments for over four decades. 

Our optical flame detectors combine sophisticated algorithms with detection technologies such as ultraviolet (UV), infrared (IR), UVIR, dual IR and multispectrum IR, to boost detection while minimizing false alarms.

Ultraviolet flame detectors, Single frequency & Multi-spectrum
Single Frequency and Multi-spectrum infrared flame detectors
Multi-spectrum infrared Hydrogen Flame Detectors
Available as Conventional (mA) and Addressable (EQP) models

Detector selection and positioning should be based on the facility’s fire-risk assessment, potential fuel sources, obstructions and required coverage.

Hazardous gas monitoring

Gas Detectors

We offer Combustible, toxic, gas leak and oxygen depletion detectors for personnel, process and asset protection Our OEM products has designed and manufactured certified gas detection solutions for hazardous industrial environments for over 30 years. 

During this time, we have developed a broad line of innovative and reliable gas detectors, with our acoustic and line-of-sight models winning exida safety awards.

Combustible and hydrocarbon gas detection
Toxic gas detection for gases such as hydrogen sulphide, carbon monoxide, chlorine, hydrogen, nitrogen etc
Oxygen-deficiency and oxygen-enrichment monitoring
Point and open-path gas detection
Acoustic Leak Detector
Available with Conventional (mA) and Addressable (EQP) models

Gas-detector location should consider gas density, ventilation, release points, process conditions and the facility’s hazard analysis.

Alarm and notification devices

FGS Alarming Accessories

Our fire and gas alarming accessories support effective notification, manual activation and emergency response across industrial and hazardous-area environments.

These accessories are selected to complement field-detection systems and provide reliable warning, signalling and local response support.

Beacons designed for use in potentially explosive atmospheres and harsh environmental conditions
Manual fire alarm call points designed for use in flammable atmospheres and harsh environmental conditions
High-power explosion-proof sounders certified for use across a wide temperature range
Combined audio/visual units with certified beacon and sounder configurations
Loudspeakers intended for use in potentially explosive atmospheres
Smoke, heat and multi-sensor photoelectric detector options with LED indication and polycarbonate housing

Accessories should be selected in line with the site hazard classification, notification requirements and emergency-response philosophy.

Integrated safety response

Fire & Gas Detection Safety Systems & Suppression Systems

We provide integrated Fire & Gas safety systems that receive signals from field detectors, evaluate alarm conditions and initiate predefined responses through an approved cause-and-effect strategy.

The system can generate audible and visual alarms, communicate with control-room interfaces, initiate equipment shutdown, close isolation valves, stop ventilation systems and activate the appropriate fire-suppression response.

Suppression solutions are selected according to the identified fire hazard, protected area, occupancy and equipment type. Systems may include water-based, foam, gaseous, clean-agent, water-mist, deluge or localized suppression arrangements.

Fire and gas control panels
Safety logic and cause-and-effect programming
Audible alarms, beacons and emergency notification
Emergency shutdown and ventilation-system interfaces
Deluge, foam, water-mist and gaseous suppression solutions
System testing, commissioning and functional verification

Suppression-system selection must be based on the protected hazard and applicable project, fire-safety, environmental and regulatory requirements.

Fire and gas detection and suppression system

Very early smoke detection

Smoke Detection (VESDA – Very Early Smoke Detection Apparatus)

Very Early Smoke Detection Apparatus systems provide continuous air sampling for the early identification of smoke particles, often before smoke becomes visible or conventional detectors enter alarm.

Air is drawn through a network of sampling pipes and analysed by a highly sensitive detector. Multiple alarm levels can be configured to provide early warning, investigation time and staged emergency response.

Aspirating smoke detection is particularly suitable for critical environments where conventional point detectors may be difficult to access, too slow or affected by high airflow.

Aspirating smoke-detection systems
Engineered sampling-pipe networks
Configurable alert, action and fire-alarm thresholds
Integration with fire-alarm and building-management systems
Applications for control rooms, data rooms, electrical rooms and critical equipment areas

Our delivery capability

Complete lifecycle support for Fire & Gas systems

Our support can cover system engineering, equipment supply, integration, commissioning and lifecycle maintenance for both new installations and existing facilities.

design_services

Engineering & System Design

Detector selection, coverage planning, control-system architecture, alarm philosophy and cause-and-effect development based on project requirements.

integration_instructions

Integration & Commissioning

Integration with control, safety, shutdown, alarm and building-management systems, followed by testing, commissioning and functional verification.

build

Maintenance & Testing

Routine inspection, calibration, detector testing, functional testing, fault diagnosis, spare-parts support and system upgrade services.