Todd The Appendix states every time you drain and refill the system you must release the trapped air, so by definition a system has a control valve, Water flow switch and a drain. thus each floor can be independently shut off and drained then refilled, thus they would need an air vent.
From: Fpdcdesign <[email protected]> Sent: Monday, October 9, 2023 9:28 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: Air venting 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<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2flists.firesprinkler.org%2flist%2fsprinklerforum.lists.firesprinkler.org&c=E,1,kkJFqHD9aPZ537cxcwsvCwhm4R70ZvOo0S6Gk85XBohNOoT8T8tqeEyD1jPp7R9kcbPnYM6LadkeGms2rGQ4ebRtpnutZk0Pvr4uRXN6yosuxtdFj9TITn02jgen&typo=1> To unsubscribe send an email to [email protected]<mailto:[email protected]> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2flists.firesprinkler.org%2flist%2fsprinklerforum.lists.firesprinkler.org&c=E,1,xj9ibRM4Hh0YHKhgD08rPdbBBiyBoA7qWVlPZKh75rBkQ3Swky86MzZ_V29hAsPpsUSSHrkUd2tURI2WqmGXcBYhSo658sDckWF2OTKDm2GM6SdalA,,&typo=1> To unsubscribe send an email to [email protected]<mailto:[email protected]> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2flists.firesprinkler.org%2flist%2fsprinklerforum.lists.firesprinkler.org&c=E,1,DZ297MXRTZwqKIIbZ42kAolu2j17L3p1FgYyvF36-UDup3MCS3b8pWLk118R66hsQJLiNlWJ60j6X0Psp6FgFZJ9TNRxyhGNas1z4Cd1BgVhDPivMQyCwr7Pz3o,&typo=1&ancr_add=1> To unsubscribe send an email to [email protected]<mailto:[email protected]>
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