Re: Another one for the books

[Crash Gordon® <NONE@xxxxxxxx>]

sounds like a dry pipe system?


"petem" <petem001@xxxxxxxxx> wrote in message =
news:sEa3e.24958$rl.694508@xxxxxxxxxxxxxxxxxxxxxx
> I have come across a very special type of sprinkler here in a shop =
where=20
> they make plastic...
>=20
> There is 2 line of pipes...one is looking like the normal one we see =
every=20
> where but the size of the pipe looks small for the length of the =
pipe..
> and there is a second pipe with heads at the same level as the first =
one but=20
> they have no detection device plugging the holes..like if they all =
been=20
> triggered..and the pipe is normal size for sprinkler...
>=20
> the way it work is that pipe with detection heads on it on a small =
pipe is=20
> under air pressure and there is no water in those pipes..
> when a head blow because of heat the air pressure drop releasing water =
to=20
> the other bigger pipe and flooding the whole place..
> I have seen it in action...boy it was raining like in a tropical storm =

> inside...
>=20
> from what I understood this system was a down fit from water based =
original=20
> system to a air one (the smaller system) cause they don't heat the =
place at=20
> all during winter and the original system could not be converted to =
air=20
> directly because of some law..
>=20
>=20
>=20
> "Jackcsg" <nospam@xxxxxxxxxx> a =E9crit dans le message de news:=20
> ZPmdnf4gK4Qf-tHfRVn-tw@xxxxxxxxxxxxxxx
> > "Robert L. Bass" <robertlbass@xxxxxxxxxxx> wrote in message
> > news:bf6dnX_bSpZnoNHfRVn-tw@xxxxxxxxxxxxxx
> >> > nor do all the heads pour buckets
> >> > of water down at the same time.
> >> > It only happens in Hollywood.
> >>
> >> There is a type of sprinkler system which does that.  It's called a =

> >> deluge
> >> system.  Activate it and water sprays out everywhere.  I've only =
seen one
> > of
> >> them.  It was a huge warehouse in Farmington, CT.  They had a huge =
fire
> > pump
> >> and backup generator to provide the necessary water pressure.  We
> > monitored
> >> waterflow, pressure, primary and secondary power, etc.
> >>
> >> BTW, this was a takeover of a huge ADT installation.  The client =
had
> > broken
> >> off from ADT for reasons unknown to us.  Neither system was =
functioning
> > when
> >> we arrived, though I don't think it was really ADT's fault.  These =
people
> >> regularly broke things.  The burglar alarm was a muxed system with=20
> >> modules
> >> installed all over the building.  Sensors had (IIRC) 6K EOL =
resistors.=20
> >> We
> >> replaced the burglar alarm with a Napco MA-3000.  I forget what we =
used
> > for
> >> the fire alarm.
> >>
> >> Anyway, we installed the systems, fixed a number of problems with =
the
> > wiring
> >> and made frequent visits to repair stuff when they would hit things =
with
> >> fork trucks.  After a couple of years some character talked his way =
into
> >> doing a free "inspection" for them.  He told the client there were
> > problems
> >> with the alarms (which were functioning perfectly) and sold them on =
an
> >> "upgrade".  They wound up with a single, combined bug and fire =
alarm
> >> system -- which was not even rated for commercial fire.  They were =
slow
> >> payers so I was actually glad to be rid of them.
> >>
> >> Oh, by the way, the deluge system had been installed because the =
prior
> >> owners of the building stored flammable goods.  The people who had =
it=20
> >> when
> >> we got there stored computer hardware.  Imagine what would have =
happened
> > if
> >> that deluge system went off with a few million dollars worth of PCs =
on=20
> >> the
> >> shelves.  :^)
> >>
> >> Regards,
> >> Robert L Bass
> >>
> > I've never run across one. I can see why I haven't though....
> > What did it use to detect a fire?
> >
> >=20
>=20
>=20
>