Currently only piv. Want to remove piv and just install main control valve at riser. Piv didn't close all the way. Been underground a long time.
On Mon, Oct 20, 2025, 12:36 PM Parsley Consulting <[email protected]> wrote: > Tim, > > I won't copy what Craig and Tom have said, only to offer my own thoughts. > > If the backflow serves only one sprinkler system, the OS&Y valves there > function as a system control valve. Indeed §16.9.3.3.5 in the '22 and '25 > editions of -13 specifically permits them to serve as a control valve to a > sprinkler system provided they are listed for fire protection. And the > supervision requirements of §16.9.3.3 would apply as well. > > Why are you adding a PIV, and installing a control valve at risers? Is > there more than one system? > > sincerely, > *Ken Wagoner, SET* > > > *Parsley Consulting 3002 Younger Drive > <https://www.google.com/maps/search/3002+Younger+Drive+%0D%0A++++++++++Harrisonville,+Missouri+64701-3909?entry=gmail&source=g> > Harrisonville, Missouri 64701-3909 > <https://www.google.com/maps/search/3002+Younger+Drive+%0D%0A++++++++++Harrisonville,+Missouri+64701-3909?entry=gmail&source=g>* > *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 10/20/2025 10:54 AM, [email protected] wrote: > > We are trying to remove PIVs, and install a main control valves at risers. > AHJ is saying we must have a PIV. Also, we have BFPs before the PIVs. Can > anyone help me find in NFPA 13 or 24 the section about PIVs? > > > _________________________________________________________ > SprinklerForum mailing > list:https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to [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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