Gas Suppression Systems
- January 14, 1989
- Posted by: Amr Sohil
The main extinguishing principle for this system is that gas, when applied to an area where fire is present, displaces air around the fire, removing the oxygen that the fire requires to continue burning. Some gaseous system with chemical or synthetic characteristics is extinguishing fire by interrupting fire chain reaction. A gaseous system can be designed to release a variety of gasses, including Argonite, Inergen, CO2, FM200, Novec, or an equivalent gas. Each type of gas offers specific benefits and disadvantages when fighting specific types of fires.
Gaseous systems are primarily installed in enclosed areas with controlled ventilation, where they can provide optimal fire protection. These systems are used as a total flooding system for a wide range of hazards, though they are not safe to be used to suppress fires of chemicals that have their own oxygen supply or in areas where reactive metals are present.
CO2 fire extinguishing system:
Carbon dioxide suppresses fire without leaving behind any residues after discharge thus avoiding damage to sensitive equipment. With no agent clean up, there is less downtime after an incident. When properly designed, the carbon dioxide system will suppress fire in Class A, B, and C hazards by displacing the air containing oxygen that supports combustion. Typical hazards protected by carbon dioxide systems include printing presses, vaults, open pits, dip tanks, spray booths, ovens, engine rooms, coating machines, process equipment, hoods and ducts, flammable gas or liquid storage areas, and generators.
The High Pressure Carbon Dioxide System is especially effective for non-occupied hazards. Personnel occupying areas protected by carbon dioxide systems must be evacuated prior to system discharge. Therefore, discharge time delays and alarms are mandatory for occupied hazards. Whatever the application, from cylinder to nozzle, each system can be custom-designed for specific fire hazards. High pressure systems use individual storage cylinders—from 35 lb. (16 kg) to 120 lb. (54 kg) capacity each—that can be manifolded together for rapid simultaneous discharge. Cylinder valves can be opened automatically or manually and either locally or remotely using electric, pneumatic or mechanical valve actuators.
- ISS- CE mark Local assembly of CO2 Systems using imported cylinders & accessories.
- ISS-supply UL\FM systems by ANSUL – USA. when specification require such approval.
- Also, VDS- approved CO2 system can be supplied by HYGOOD -UK upon request
ISS HFC 227ea system:
FM-200 systems are accepted as providing reliable and effective fire protection solutions for high value assets, processes and locations, as well as the people who work in these protected areas
The FM-200 Clean Agent is a colorless, odorless, non-contaminating gaseous fire protection agent. Electrically non-conductive, FM-200 works by removing heat from a fire so that combustion cannot be sustained. The decision to use FM-200 can be based on a number of key factors: it is the most widely used of the chemical replacements for Halon 1301 and it is an agent that has been used to successfully protect tens of thousands of high-technology facilities in 70 countries around the world.
Extensively tested, FM-200 systems are proven safe for use in occupied areas. They are designed using bespoke software, which accurately calculates the amount of FM-200 required for the protected space. The target concentration of FM-200 in an identified protected volume is matched to international standards, which themselves are the result of extensive and repeated fire tests, to match design to fire protection performance.
- ISS- has signed an agreement with FSL (Firetec Systems Ltd.) – UK. to provide the first LPCB Locally assembled HFC 227 ea (FM200) Systems and filling station in EGYPT.
- Also, ISS-supply UL/FM FM200 and other gas systems by HYGOOD – UK. when specification required such approval.