How does Compressed Air Foam System work?
How does Compressed Air Foam System work?
A Compressed Air Foam System uses a Class A foam concentrate, combined with water, and compressed air to form a fire extinguishing agent that is greater than the sum of its parts.
When would you use a CAFS system?
A compressed air foam system (CAFS) is used in firefighting to deliver fire retardant foam for the purpose of extinguishing a fire or protecting unburned areas.
What is CAFS in fire fighting?
CAFS stands for Compressed Air Foam System and is a system for the production of high-quality CAF (Compressed Air Foam), which is used to fight solid and liquid fires.
How is compressed air foam made?
Compressed-air foam (CAF) is generated by injecting air under pressure into a foam solution stream. The process of moving the solution and air mixture through the hose or piping. if done correctly, forms compressed-air foam.
What is an advantage of compressed air foam?
Compressed air foam provides quicker knockdown times and minimizes FF exposure to immediately dangerous to life and health (IDLH) environments. The increased drain time of the CAFS allows water to be used more effectively while fire fighting. Due to its high-surface tension, water tends to run off of surfaces.
Who invented CAFS?
So says Mark Cummins, who invented the Compressed Air Foam System in 1976. While Cummins invented CAFS and at one time had the patent for CAFS in just about every English-speaking country, those patents have expired and anyone can manufacture a CAF system.
What is class A foam?
Class A foams are used to extinguish fires caused by wood, paper, and brush. Class A foams generally do not contain per- and polyfluoroalkyl substances (also known as “PFAS”).
How do you calculate foam solution?
The formula for calculating the needed foam concentrate at a flammable liquid release is as follows: Area X Critical Application Rate (CAR) X Eduction Rate (ER) X 15 = Foam Concentrate Needed.
Which type of foam proportioner relies on the Venturi effect?
National Foam Proportioners utilize the water flowing through them to produce a venturi effect that induces foam concentrate into the water stream.
What is class B foam used for?
Class B firefighting foams are commercial surfactant solutions that have been (and continue to be) stored and used for fire suppression, fire training, and flammable vapor suppression at military installations and civilian facilities and airports, well as at petroleum refineries and bulk storage facilities, and …
What does CAFS stand for on a fire engine?
Compressed Air Foam Systems
Compressed Air Foam Systems (CAFS) An alternative method of fighting fires with foam when supplies of water are restricted. Compressed Air Foam Systems have several benefits away from the traditional use of Water to fight fires.
What is a B foam?
BIOEX supplies multi-purpose firefighting foam concentrates, also called A/B foam. It forms an aqueous film or a foam blanket above the fuel and spreads quickly over the fuel. The foam blanket blocks vapor and prevents from reignition, while the water included in the foam blanket cools down the fuel.
