Extra security for deluge valve 1

[DavidCR]

We are thinlking on using a deluge system indoors where preventing water damage is very important issue for the client, and we are thinking on using a deluge system.

I have worked with common deluge valves (Viking, Tyco), for many industrial or common applications where following the normal listed designs is not a problem.

To prevent unwanted water discharges one can think of double or extra securities on the electronic or hydraulic actuation system, but if there is a leak on the priming-pilot lines, or somebody tampers the manual actuation valve, the rubber of the diaphragm is damaged or clogged, or the solenoid valve fails for unkown reasons or a failure on the alarm system or a test, etc. Also a sprinkler pilot line can fail thinking of a hydraulic actuation system, so there is always some risk of unwanted water flood.

So I´m courious if semoboody knows if there are options to add extra security on a deluge valve thinking on the mechanical side that retains the clapper from fail, or safer valves on this issue.

Some people has even commented "crazy" ideas like using two deluge valves on series or double solenoid valve, etc. And of course we want to stay on the listed manufacturers specs.

Does somebody knows if there are options on deluge valves that include double mechanical securities, or options like an hybrid of deluge&preaction system ?.

Any ideas are welcome. Thanks in advance.

 

[LCREP]

Human life vs water damage are you thinking water damage is more important? As a person that did insurance loss prevention for way too many years I will take water damage over human life. Call your insurance carrier loss prevention department and see what they want. You may end up paying more premium or nothing at all. Most play houses in New York City have deluge systems protecting the stages as it has been part of the NYC code for many years.

 

[cdafd]

""""Most play houses in New York City have deluge systems protecting the stages as it has been part of the NYC code for many years."""

Interesting

 

[DavidCR]

For all the comments and points of view, thanks a lot.
Yes, old historic, delicate wood, plaster, fabrics, paintings, gold, no flood provisions. (Maybe some freedom following NFPA 914).
I have some experience with Viking E and F, Tyco DV5, inspections on Bermad, Watts all diagphragm type. Also changed some non-diagphragm old style valves.
Has anybody a design descripcion on a deluge systema on an actual theater. Or the use of a non-deluge water curtain?.