Ken, I think you would have to with the check valve. I would push back a little in that by adding a normally open valve and a flow switch or manifold would not change the physics of the system enough to warrant the additional vents. If you had a 2 story building without zone valves, you would only need one vent. However, if you add normally open valves and flow switches, you would now need 2 (or 3?). From the standpoint of physics, why? Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 (tel:860-535-2080) (ofc) 860-554-7054 (tel:860-554-7054) (fax) 860-608-4559 (tel:860-608-4559) (cell)
> > On Oct 9, 2023 at 12:06 PM, <Ken Wagoner > (mailto:[email protected])> wrote: > > > Yes, Todd, on each floor, as they're using a Victaulic UMC manifold which > includes a check valve. > > thanks for the information, > > Ken Wagoner, SET > Parsley Consulting > 500 West Mechanic Street > Harrisonville, Missouri 64701-2235 > Phone: (760) 745-6181 > Visit the website > (https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1) > > On 10/9/2023 10:49 AM, Fpdcdesign wrote: > > > > > Is there a check valve on the floor control assembly? > > > > > > > > Todd G Williams, PE > > Fire Protection Design/Consulting > > > > Stonington, CT > > > > 860-535-2080 (tel:860-535-2080) (ofc) > > > > 860-554-7054 (tel:860-554-7054) (fax) > > > > 860-608-4559 (tel:860-608-4559) (cell) > > > > > > > > > > > > > > > > > > > > On Oct 9, 2023 at 11:44 AM, <Ken Wagoner > > > (mailto:[email protected])> wrote: > > > > > > > > > Forumites, > > > > > > I'm working on a multi-story building protected per NFPA 13. As each > > > floor has a separate control valve, is a means to vent trapped air > > > required on each floor? Or is it only required at the highest level of > > > the building? > > > > > > My thinking is that each floor has a separate fire sprinklers system. > > > > > > Any thoughts? > > > > > > Ken Wagoner, SET > > > Parsley Consulting > > > 500 West Mechanic Street > > > Harrisonville, Missouri 64701-2235 > > > Phone: (760) 745-6181 > > > Visit the website > > > (https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1) > > > > > > > > > _________________________________________________________ SprinklerForum > > > mailing list: > > > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > > > To unsubscribe send an email to > > > [email protected] > > > (mailto:[email protected]) > > > > _________________________________________________________ SprinklerForum > > mailing list: > > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > > To unsubscribe send an email to > > [email protected] > > (mailto:[email protected]) > > > _________________________________________________________ SprinklerForum > mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to [email protected] >
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