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We have to move pre-action valves for two different pre-action systems from their original location in the fire riser room to another area of a warehouse. The location where they are inteded to be placed is protected by ESFR sprinklers for high-pile storage hazards.
Is there any requirement to place the valves and panel in this location? Do they have to be placed in a room to avoid mechanical damage, or some type of enclosure? Can they just be in the warehouse without any code violation (we are under both FM and NFPA suppression standards)? Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
7 Comments
Mike L
12/15/2021 07:11:13 am
NFPA does not limit the locations where Pre-Action valve assemblies can be located. The valves should be installed in an readily accessible location and protected from physical damage. In the case of an active warehouse, bollards or a guardrail is recommended. The releasing panel should be treated as an electrical panel (provide a smoke detector above it and maintain minimum of 3 feet of clearance in front of it).
Wilsun Menor
12/13/2023 07:21:08 pm
Hey Mike. Got any ideas on the maximum distance a preaction cabinet can be from the room it's serving? Thank you.
Jesse
12/15/2021 08:12:31 am
I'm assuming the new location is physically closer to the area protected by the pre-action system(s),. This is really good because doing so will reduce the volume of the system.
Glenn Berger
12/15/2021 08:16:01 am
Mike nailed the answer above with one exception: You might need to perform calculations to assume hydraulics is not compromised by the relocation of the risers.
Alex
12/15/2021 08:24:21 am
Everything is listed above! I would run new calculations to verify both hydraulics and water delivery time.
Mark Harris
12/17/2021 06:12:28 pm
Agree with above comments but also consider drain requirements. Once saw a pre-action valve in a closet with a five gallon bucket under the main drain pipe,
sean
12/31/2021 06:32:31 pm
while our gut tells us this will work, you should do the calcs just as confirmation and legal record. Leave a Reply. |
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