It sounds like an apartment building. If the floors above are CPVC systems, they wouldn’t require an air vent.
I would argue the use of metal devices in the valve assembly does not constitute a metallic pipe system. Taylor Schumacher Security Fire Sprinkler<http://www.j-berd.com/> 1 Industrial Blvd | Sauk Rapids, MN 56379 Office: 320.656.0847 | Direct: 320.640.7050 On Oct 9, 2023, at 6:32 PM, Ken Wagoner <k...@parsleyconsulting.com> wrote: Caution: This email originated from outside your organization. Please take care when clicking links or opening attachments. It is even more of an issue for this building, as the only air vent valve is provided on the garage level of a four story building. thank you all for the good and timely responses, 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 sprinklerforum-le...@lists.firesprinkler.org
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