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BMW 3-Series (E90 E92) Forum
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anyone have fire sprinklers *inside* their home?
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11-15-2021, 03:16 PM | #67 |
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What's the melting temperature of PEX?????
(180-200F, according to my search engine du-jour.)
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11-16-2021, 07:44 PM | #68 | ||
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Most residential sprinkler systems use CPVC piping which melts around 420 F. So you'd think that's an issue since fire is obviously much hotter, but in reality the sprinklers will activate prior to pipe melting, and that water spray greatly cools the smoke layer. |
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11-17-2021, 12:17 PM | #70 | |
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And when I was joking with one of the maintenance guys about the old movie bit of setting them off with a lighter, he said that it will not work, there is some sort of safety system that will prevent discharge if it is only one head getting the heat. Anybody know if this is true or not? |
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11-17-2021, 02:28 PM | #71 |
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This is all very educational, thanks everyone for all the information. I guess I still have a bit of apprehension if sprinklers are in my home but overall it's definitely a good thing to have weighing pros/cons.
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11-18-2021, 12:34 AM | #72 | |
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What he said is sorta true though. There are pre-action sprinkler systems that require both a sprinkler to break and a smoke detector to activate for water to discharge. Generally used in places like IT rooms. |
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11-18-2021, 10:17 AM | #73 | |
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