Sprinkler Pipe Auto Shutoff in Tornado Shelter?

10/29/2024

I am designing a community tornado storm shelter and per ICC 500, Section 309.1, any penetration of the shelter envelope by a liquid line is to be provided with an automatic shutoff.

How is this being achieved with sprinkler pipe penetration?

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6 Comments

Pete H

10/29/2024 06:41:23 am

I could be entirely wrong, but my best guess is with an automatic shutoff valve listed for fire protection. Here are the two I found:

https://assuredautomation.com/news-and-training/refineries-and-cryogenic-transfer-trailer-manufacturers-use-automatic-fire-safety-shutoffs-to-protect-property-and-life/?srsltid=AfmBOoo-cpwRZNSlB9WmXYF5oWfbKuC1len-5FyKIfMewcBovXTcF6sP

https://www.tyco-fire.com/products-and-solutions/valves-devices-and-components/wet-system-valves-and-components/rsv-1_fis/rsv-1-residential-shut-off-valve

Nic J

10/29/2024 08:10:09 am

Reading the second paragraph in section 309.1 it states "hazardous gas and liquid.." I read it as the intent is to provide an automatic shut off for hazardous materials possibly entering the space. I've worked on the design for a couple of storm shelters and never had to install automatic shutoffs on sprinkler or standard plumbing lines.

Glenn Berger

10/29/2024 08:16:39 am

I am with Nic J on this one. Shut-off valves for hazardous materials, not for fire suppression systems.

Chris Nelson

10/29/2024 09:56:29 am

Im just a lowly new englander, but arent tornado shelters in the ground? Could water flooding from the sprinkler be considered a hazardous liquid?

Jack G

10/29/2024 10:55:35 am

I agree that the auto shut off is for hazardous gas and liquids.
When you think about it the shelter would contain toilets sinks water line and waste lines ( if not chemical toilets) .
Larger ones automatic sprinkler piping.
Hazardous liquids could be fuel/ fuel fill lines for the generator or fuel tank. Gas— gas lines for appliances

Ricardo Gonzales Jr

12/2/2024 02:25:49 pm

Water is hazardous when the occupants can't get out. Food for thought.

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Sprinkler Pipe Auto Shutoff in Tornado Shelter?

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