Fire & Gas Systems

Fire & Gas Systems covers the full chain of a fire and gas detection system: detectors in the field, the controllers and fire alarm panels that process their signals, alarm devices, and the suppression hardware released on a confirmed fire. Seven Star LLC supplies this equipment from Muscat, Oman, with products from Dräger, Honeywell, Xtralis, MEDC, Det-Tronics and MSA Safety among the brands listed.

Detectors, logic controllers and fire fighting equipment

Fire & Gas Detectors is the largest group. It holds fixed and portable gas detectors, flame detectors, aspirating smoke detectors and explosion-protected sounders and beacons.

Logic Controllers holds the equipment that receives those signals: conventional and addressable fire alarm control panels, loop cards, gas detection controllers and a fire and gas safety system controller.

Fire Fighting holds clean agent suppression cylinders with their release components, and landing valves for wet riser systems.

How the parts of a fire and gas system work together

Field detectors report gas concentration, flame or smoke to a controller. The controller applies alarm set points and voting, for example two detectors out of three in one fire zone, and then drives the outputs written in the cause and effect chart: sounders and beacons, ventilation shutdown, signals to the emergency shutdown system and release of extinguishing agent. Compatibility matters at every interface. A replacement detector has to match the controller input type or the loop protocol, not just the target gas.

Hazardous-area ratings and approvals

Field devices in classified areas need ATEX or IECEx certification with a suitable protection concept, such as flameproof or intrinsically safe, and the right gas group and temperature class. Fire alarm equipment for buildings is normally specified to the EN 54 series or to UL and FM listings. Operators in the GCC often add a SIL requirement for detectors and logic solvers used in safety functions.

For an accurate quotation

Send the complete part number where one exists. Otherwise describe the device type, the gas or fire hazard, the output signal, the approvals required and the system it connects to.