What is the operating lever on a fire extinguisher?
Operating lever: the lever is the metal piece that can be pressed or squeezed to operate the extinguisher. However, the operating lever will not be able to be pressed/squeezed unless the pull pin has first been removed.
What does it mean to discharge a fire extinguisher?
A fire gauges extinguisher can be “overcharged” meaning the contents are under too much pressure, “discharged” meaning that there is not enough pressure to work correctly or “in the green” which means that the unit is properly charged.
What are the parts of a fire extinguisher?
The main parts of a fire extinguisher are five: one or two tanks; a valve assembly; a hose, or a nozzle; an extinguishing agent; a propellant. The tanks are made of metal; they contain the extinguishing agent and the propellant. They can be manufactured by extrusion or by calendering, deep drawing and welding.
What is discharge time in fire extinguisher?
The approximate discharge time for 10 to 20 pounds of dry chemical ranges from 10 to 25 seconds. Once activated, can an ABC extinguisher be turned off? Yes, stop squeezing the trigger and the dry chemical stream will stop. This may be appropriate if you must reposition yourself in relation to the fire.
Which part of fire extinguisher should Amit pull first to unlock it?
Knowing how to use a fire extinguisher could save your life in an emergency. The key to putting out a fire with an extinguisher is to use the PASS strategy: Pull the pin, Aim the hose, Squeeze the lever, and Sweep the hose.
Should you test fire extinguishers?
Fire extinguishers should be maintained at regular intervals (at least once a year), or when specifically indicated by an inspection. … It will normally reveal the need for pressure testing (hydrostatic testing) of an extinguisher to ensure the cylinder is safe to use.
How can you tell if a fire extinguisher is still good?
Most fire extinguishers should have a pressure gauge with a red section and a green section. If the needle is in the green, you’re good. If your extinguishers don’t have a pressure gauge and you want to test them, press in the pin. If it pops back up, the extinguisher is pressurized.
How do you clean an ABC fire extinguisher discharge?
Spray stuck-on residue with isopropyl alcohol diluted 50 percent with warm water. Let the solution sit for several minutes, and then wipe with a damp rag. To neutralize sodium bicarbonate and potassium bicarbonate residue, apply a solution of 98 percent hot water and 2 percent vinegar.
What are the 4 types of fire extinguishers?
There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire. Multipurpose extinguishers can be used on different types of fires and will be labeled with more than one class, like A-B, B-C or A-B-C.
What are the seven parts of a fire extinguisher?
This includes the hose, handle, cylinder, nozzle, pin security tag, maintenance or inspection tag, safety pin and gauge. A fire extinguisher is nothing without all of these working parts!
What is a 20 B fire extinguisher?
The B:C rating is equivalent to the amount of square footage that the extinguisher can cover, handled by a professional. 20 B:C = 20 square feet of coverage. 3. C indicates it is suitable for use on electrically energized equipment.