What is a fire nozzle?
A handline nozzle is connected to the fire hose that provides water flow to extinguish fires. The quality of the handline nozzle that you choose ensures effective fire extinguishing and better water flow.
What is nozzle fire extinguisher?
in fire fighting, a device for generating and directing a stream of water, foam, powder, or other fire-extinguishing substance. The simplest type of nozzle is a tube with a terminal attachment that adjusts the stream. The output of fire-hose nozzles varies from 1 to 200 kg of fire-extinguishing substance per sec.
How does a fire nozzle work?
How does an automatic nozzle work? The automatic nozzle uses a principle very similar to that of a pumper relief valve. A highly dependable spring, connected to the baffle that forms the discharge orifice, is balanced against the water pressure in the nozzle.
What is all purpose nozzle?
A multipurpose nozzle is a combination smooth bore and fog nozzle. It provides the maximum reach and penetration of a smooth bore, while still enabling the benefits of a fog stream at the same time or independently.
What are the two types of fire nozzles?
There are five basic nozzle types:
- the solid bore.
- the single gallonage (sometimes called variable pressure/variable flow)
- the adjustable gallonage.
- the automatic or constant pressure.
What are the three position of an all purpose fire nozzle?
The all purpose nozzle (APN) is a 1 1/2-inch, three-position nozzle with a throw handle for shut, fog or solid stream positions. It can also be used with the 4-foot AFFF applicator for low-velocity fog patterns and has a removable nozzle tip for inserting the AFFF applicator.
Which fire fighting agent is most effective at removing heat?
Water
How does foam extinguish a fire?
Unlike other extinguishing agents – water, dry chemical, CO2, etc., a stable aqueous foam can extinguish a flammable or combustible liquid fire by the combined mechanisms of cooling, separating the flame/ignition source from the product surface, suppressing vapors and smothering.
Which advantage does dry chemical have over carbon dioxide in fire fighting?
Dry Chemical Extinguishers: They have an advantage over CO2 extinguishers in that they leave a blanket of non-flammable material on the extinguished material which reduces the likelihood of re ignition.
Can CO2 cause fire?
What are fire hazards and extinguishing media for carbon dioxide? Flammable Properties: Does not burn. Specific Hazards Arising from the Chemical: Can displace oxygen in the air, causing suffocation.