Kidde air-powered siren

[Daniel]

Here is a small compressed-air siren from the Walter Kidde Co. which I found on Ebay last year. I believe that it was used on sprinkler systems (i.e. water siren). It is solid brass with excellent bearings but requires much more air than my compressor can give. It might work nicely on steam. Has anyone played with one of these before?

http://www.youtube.com/watch?v=K_PZhi1NXr4

[Jpressman8]

Where did you get that nifty little thing? That's a pretty neat little siren.

[C. Bryant]

Its what they used on automatic carbon dioxide [ Co-2 ]
Fire Extinguisher systems on ships, in the engine room and of course,
when sounding
means GET OUT of the area or risk death
Co-2 puts out the fire and
takes away the air.
Siren
works at about 850-900 PSI what Co-2 systems , & extinguishers hold.
. If you can find one made by C0-2 Fire Equipment Co.( The Fyr Fyter Co. )
Its about a
30% to 40 % larger siren a real loud one.

[Daniel]

So was this siren designed to run on CO2? Is the siren used as a CO2 exhaust vent? The tolerance between the rotor and stator seems wide enough to prevent freezing. It would probably run nicely on steam.

[C. Bryant]

Only a small amount of the Co-2 would go to the siren most of it
gets discharged through horns * directed in to the ships engine
room, or on the engine itself.

* Horns like you would see on a 10LB Co2 Fire Extinguisher etc.
I think they are metal instead of plastic like on a portable Fire Ext.