Have a project that is a large ESFR warehouse with many storage bays and many zoned systems. About every 150 to 200 feet is a 1-1/2 inch hose valve that is tied to the overhead system with 1-inch pipe drops.
What is the purpose for these? Where is the code basis? We may be modifying some of these areas with new work and I want to be sure we're upkeeping code, but I'm not familiar with the purpose of these hose valves. Thanks in advance. Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe
9 Comments
Wayne Ammons
2/4/2020 09:03:26 am
The code basis is from NFPA 13, Section 12.2 (2016 Edition)
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Wayne Ammons
2/4/2020 09:06:53 am
Here is a follow-up with the annex material from the sections referenced above:
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Jesse
2/4/2020 12:23:54 pm
As a 20+ year retired fire chief officer, now fire protection engineer - the code sections are right on the money.
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sean
2/4/2020 01:26:38 pm
Agreed.
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Jesse
2/4/2020 01:31:30 pm
Yeah they do.
Kelly
2/5/2020 08:51:22 am
To be honest, I also don't like Class III standpipe systems for the same exact reason. Currently working on a design where class III would be required but the client has requested no 1-1/2" hose valves because they do not want their workers or contractors attempting to use them, and their fire department will only use the 2-1/2" connections. NFPA 14 needs a reboot as well if you ask me...sorry kind of off topic. Just annoyed I need to seek a variance to provide a safer design.
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sean
2/5/2020 09:27:42 am
if you look in the building code (IBC) there are numerous exemptions that allow for a class I system
Bruce Null
11/12/2021 04:57:22 pm
If anyone is looking for a standpipe protector Guard Pro has the best out there. They will comply all the codes
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