Fire Extinguishers
A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations. Typically, a fire extinguisher consists of a handheld cylindrical pressure vessel containing an agent which can be discharged to extinguish a fire. more...
 Home
ATV Parts
Apparel & Merchandise
Automotive Tools
Aviation Parts
Boat Parts
Car & Truck Parts
 Air Conditioning and Heat
Air Intake & Fuel Delivery
Brakes
Charging & Starting Systems
Computer, Chip, Cruise...
Cooling System
Decals, Emblems, & Detailing
Emission System
Engines & Components
Exhaust
Exterior
Filters
Gaskets
Gauges
Glass
Ignition System
Interior
Lighting & Lamps
Other Parts
Safety & Security
 Air Bags & Parts
Anti-Theft Devices
Car Alarms
Fire Extinguishers
Keyless Entry Remote / Fob
Other
Remote Car Start
Seat Belts & Parts
Salvage Parts Cars
Suspension & Steering
Transmission & Drivetrain
Turbos, Nitrous,...
Wheels, Tires & Parts
Car Audio, Video
Manuals & Literature
Motorcycle Parts
Other Vehicle Parts
Personal Watercraft Parts
Racing Parts
Services & Installation
Snowmobile Parts
Vintage Car & Truck Parts
Wholesale Lots
Usage
The typical steps for operating a stored pressure fire extinguisher (described by the acronym "PASS") are the following:
- P - Pull the safety pin
- A - Aim the nozzle at the base of the fire, from a safe distance (*about 1 to 3 meters (4 to 10 feet) away)
- S - Squeeze the handle
- S - Sweep the extinguisher from side to side while aiming at the base of the fire
The approximate starting distance varies by the size and type of the extinguisher. (ie. Water APW vs 1.1 kg (2.5 lb) Dry Chemical.)
If using a cartridge operated extinguisher you must push down on the cartridge puncturing lever to pressurize the extinguisher after pulling the pin.;
CO2 fire extinguishers usually have a horn-shaped nozzle. Do not touch this horn (or the pipe linking it to the extinguisher) when attempting to put out a fire - your hand may freeze to the extinguisher, unless it is equipped with what is called a Frost Horn.;
;
There are various types of extinguishers, which are used for different types of fires; using the wrong type can worsen the fire hazard, but using the right one can better the situation.
History
The first automatic fire extinguisher of which there is any record was patented in England in 1723 by Ambrose Godfrey, a celebrated chemist. It consisted of a cask of fire-extinguishing liquid containing a pewter chamber of gunpowder. This was connected with a system of fuses which were ignited, exploding the gunpowder and scattering the solution. This device was probably used to a limited extent, as Bradley's Weekly Messenger for November 7, 1729, refers to its efficiency in stopping a fire in London.
The modern fire extinguisher was invented by British Captain George William Manby in 1818; it consisted of a copper vessel of 3 gallons (13.6 litres) of pearl ash (potassium carbonate) solution contained within compressed air.
The soda-acid extinguisher was invented and patented in 1923 by Hungarian fire brigade officer Kornél Szilvay. His extinguisher used the reaction between sodium bicarbonate solution and sulphuric acid to throw a jet of water on to a fire.
A vial was suspended in the cylinder containing concentrated sulphuric acid. Depending on the type of extinguisher, the vial of acid could be broken in one of two ways. One used a plunger to break the acid vial, while the second released a lead bung that held the vial closed. Once the acid was mixed with the bicarbonate solution, carbon dioxide gas was expelled and thereby pressurize the water. The pressurized water was forced from the canister through a nozzle or short length of hose.
Read more at Wikipedia.org
|
Contact
