Randy,
Code wise, I don't anything that restricts you from doing that. I
always have felt uncomfortable with the idea of a standpipe on a dry
valve, but perhaps some of the fire fighters amongst us could help up
on the merits of those.
The problem I see with the floor control on a dry system is that most
floor controls contain flow switches, which are a no-no. You could
install a valve, but probably not anything to monitor flow. Also, I'm
not sure how the check valve requirement would play in to this. There
is a restriction on using check valves to separate a dry system, but
does that prohibit check valves for any reason? It could.
Todd
At 06:51 PM 4/9/2008, you wrote:
Forum Members,
I have a two part question.
1. Can I have a combined standpipe on a dry system? I have 4 story factory
building that's not heated. Fourth floor is above 30 feet so I need a
standpipe. I have a heated pump room with a dry pipe valve. I was first
looking at the project with a dry manual standpipe and a separate dry
sprinkler system riser. I would like to combine the two and save piping
2. Is it OK to put floor control valves in on dry pipe system? There is a
removable section of roof where they take equipment out. I would like to
give the facility the ability to shut individuals floors down for
modification to the systems.
Thanks,
Randy Knutson
Shilo Automatic Sprinkler, Inc.
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
860.535.2080
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