Description

Fire Suppression Systems protect valuable resources and critical facilities of your business is our focus.  Lean Ventures Limited is one of the East Africa’s leading fire protection companies, offering Fire Suppression solutions for many applications.

We supply, install and maintain the following types of fire suppression systems

• Inert gas fire suppression system
• Carbon dioxide fire suppression system
• Chemical gas fire suppression system

A Fire suppression system is made up of many electrical and mechanical components, these are:-

• Fire Suppression Control Panel
• A fire suppression system has a minimum of two firedetection zones.  The fire suppression control panel uses whats as a ‘Co-Incidence” monitoring facility.  This allows the fire suppression system to monitor all detectors connected to these zones.  The fire suppression gas will only be discharged if there is a coincidence of activation  from a minimum of two fire detection zones
• Smoke detection.

• Audibile alarms.

How does a suppression system work?

Any fire burns when it has sufficient Heat, Oxygen and Fuel. The suppression system is designed to remove one or more of the elements.

Inert Gas Fire Suppression systems:-

These reduce Oxygen to below 15%.  With Oxygen levels at around 15% and below, combustion is not possible.  Fire suppressants such as INERGEN, IG55 and IG541 are designed to reduce oxygen levels to below 15% but higher than 12%.  This means that it is safe for the occupants of the enclosure to egress safely post discharge.

Synthetic/Chemical fire suppression systems:- 

These fire suppressants are designed to reduce heat.  Basically the agents are very similar to refrigerants.  Due to the nature of the fire suppression technique, these refrigerants only require a small concentration.  This means less cylinders and lower pressures.  Oxygen level are also not significantly reduced which also makes them safe to use within occupied spaces.

Water Based systems:- 

Generally these systems are not suitable for total flooding of computer rooms and other typical fire suppression applications.  Water mist fire suppression system are particularly good for extinguishing or suppressing fire that burn at high temperatures.  The fire itself is used as a medium for drawing in the water vapours as it burns and this suppresses itself.

Water Sprinkler fire suppression systems:-

These work by drenching the are area they are protecting. This inerts the fuel and stops the spread of fire.  The problem with sprinkler systems, is that they can sometimes do more damage than the fire itself!

High Expansion Foam fire extinguishing systems:- 

Water mixed with high expansion foam solution such as AFFF, allows the foam to rapidly smother the are with foam.  This is not suitable for most common fire suppression applications, but particularly good for large open spaces, where spillage of fuel or other types of combustible liquids are present.