Air pressurized water (APW) extinguishers are a type of fire extinguisher that use ordinary water (H2O) to suppress fire. The water is propelled by ordinary air (atmosphere), pressurized in the extinguisher. They are also known by the slang term water can.
Types of Fire Extinguishers: PRESSURIZED WATER MODELS- are appropriate for use on Class A fires only. These must never be used on electrical or flammable-liquid fires. CARBON DIOXIDE- extinguishers contain pressurized liquid carbon dioxide, which turns to a gas when expelled. These models are rated for use on Class B and C fires, but can be used on …
What is a pressurized water fire extinguisher used for?
What type of fire extinguisher contains pressurized water? Air-Pressurized Water (APW) Extinguishers APW stands for "air-pressurized water." APWs are large, silver extinguishers that are filled about two-thirds of the way with ordinary tap water, then pressurized with normal air.
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What type of fire extinguisher is filled with water?
Water- Air Pressurized Water Extinguishers (APW) – These extinguishers use water as the main extinguishing agent, usually filled two thirds of the way with water. According to OSHA, CO2 extinguishers are designed for Class B and C (flammable liquid and electrical) fires. Do fire extinguishers contain water?
What are the different 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. Class A extinguishers will put out fires in ordinary combustibles such as wood and paper. Class B extinguishers are for use on flammable liquids like grease, gasoline and oil.
Can you use a CO2 extinguisher on a wood fire?
CO2 fire extinguishers are safe for use on flammable liquid and electrical fires. They are NOT for use on wood, paper or fabric fires. They are also NOT suitable for cooking fires that involve oil and grease (such as chip pan fires) as the extinguisher could end up blasting the flames into surrounding areas.
What are the ingredients of a fire?
The Fire Triangle or Combustion Triangle is a simple model for understanding the necessary ingredients for most fires. The triangle illustrates the three elements a fire needs to ignite: heat, fuel, and an oxidizing agent (usually oxygen).
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Pressurized Water Can Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher