When reading NFPA 13 Handbook, 8.16.1.1. The figure shows several layout of valves installation. My question is what is the order to install the valves. Wet system figure shows control valve, then check valve; however the dry pipe system shows check valve first then control valve. So what is the right order to install valves? Or it doesn't matter as long as you have control and check valve?
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2 Comments
Joe
11/2/2017 06:29:19 am
Functionally I don't believe the order will impact the system. It could be useful to have the isolation valve first, then any other devices downstream of the valve in case of maintenance or inspection.
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Jeff Werre
10/27/2023 11:00:27 am
I am having a difficult time finding where a check valve is required on a 13 system. Can someone assist with a code section.
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