automatic fire extinguisher, non powder

Found this whilst trawling for an extinguisher. JK do one for £54 ish, but its a powder one.

This one is a 'Clean' operating extinguisher. if the unmentionable should happen, I think this one would leave the engine bay clean. £101 inc p&p


http://www.mailspeedmarine.com/fire-gas-safety/fireblitz/automatic-gtfe-halon-replacement-5979-5980-598175.bhtml

 

its a gas extinguisher, suitable for liquid and gas fires!
foam is the way forward, as soon as the fire melts a hole in your tinware foam and light clusters the gas will escape and the fire will reignite as it only shields the oxygen from the fire.
a foam extinguisher is best as the foam clings to the fuel both restricting oxygen and cooling.

 

I spoke to the guy at Firetec about this and he said both foam and powder would work well in our buses but thought that powder had the edge. Dry powder is the most versatile and . volume for volume, most effective. (You need a lot of foam in the right place).
Foam is easier to clean.
You choose

gas extinguishers are good at beating back the original flames quickly and saving sensitive electrical equipment bu D is right, doesnt prevent flare up.

Cheers
s

 

I'll agree that powder has the edge over foam, but having seen the mess it made of my dash when that went up... I opted for foam for my Firetec!

Over 12 months later and I was still hoovering up blue powder every time we went over speed bumps.

 

Hope that little bottle delivers a large enough volume of foam!

 

its all a bit confusing as to what is best.

Spoke to a technician guy today. He says the old gas (halon) would allow re-ignition as it took out the oxygen, the new gases being used actually attack the fire source.

He knows of two engines( marine) that were written off this year , because they ran for a while and inhaled the powder.
His company sells all three types, but advised the gas??????????? confused now :dizzy:

 

i've been looking around and can't find one of them single nozzle jobs that aren't powder, i would like a foam one but can't see any, also i'm slightly dubious on the single outlet ones as they go off at 79 degrees (the glass bulb breaks) does this glass bulb work well on bumpy ground.....does the engine bay get upto 79 degrees on a long run up hill.......

 

someone on the old tlb was running with one of these (bulb/glass file types) and had been for 5 months, with no problems, JK are selling them( suppose that don't mean much though )

With my recent fuel p****g carb exploits, I really need something soon.

 

this one
http://www.fireprotectiononline.co.uk/2kg-automatic-fire-extinguisher.html

 

Haribo fried eggs!
Why didnt you say, puts out the fire and leaves an edible goo, you can't beat that value!!

 

foam is definately better than dry powder-FACT
i'm a firefighter of 10 years and have been to hundreds of car fires!
the extinguisher in the engine bay is just meant to act as a first line of defence to allow you to tackle the blaze more safely as it has been suppressed. you ideally should have a larger extinguisher in your bus of the same media (foam). dry powder is prone to reignition too. great as a quick knock down but nothing else. it aslo negates the effect of foam which a lot of modern fire appliances (ours included) carry.

 

hi Dog,
Given the same size container which extinguishant would be the most effective?

I only ask because I got my information from the technical director of a Fire extinguisher manufacturer and I'm getting conflicting info from you a Fire expert.

Did a bit more research and it seems that dry powder knocks down the fire the quickest and foam is best at preventing re-ignition. Loads of you tube videos confirm this.

Would it therefore be better to have a drypowder fire suppression system to get the fire out quick followed by a hand held foam extinguisher to prevent re-ignition? (engine would be a gooey mess but there are other prioritys!)

Cheers
s