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Hello lovely forum. Recently there was a question on taking the FDC off the fire pump bypass as long as it was downstream of any control valves on the pump bypass.
[Moderator Note: link to that question is here: https://www.meyerfire.com/daily/allowed-to-tap-fdc-into-fire-pump-bypass] Building off that question, I have seen freestanding fire department connections being feed into an exterior hotbox that has the backflow preventer. This setup is before the feeds enter the building, and before going to a fire pump inside the building (and control valves before the pump). Is this a violation of code, for having control valves on the FDC line before the valve header? Thanks for your time. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
4 Comments
Jack G
10/28/2021 09:06:58 am
The fire dept usually shuts down the supply to the system after they start pumping into the fdc to ensure their pumper is getting adequate water.
Brad K
10/28/2021 10:26:02 am
I don't see this proposed arrangement as against code provided executed correctly. It should be no different than a vaulted backflow with PIV and FDC. The fire department can shut down the PIV and supply water to the FDC downstream of the backflow. The water travels into the pump room and there MUST be a city bypass around the pump with supervised open valves. This allows FDC water to the systems. See 13:8.17.2.4.4.
Mark Harris
10/28/2021 06:16:14 pm
Maybe it has changed but looking at section 8.17.2.4.8 NFPA 13 2007 edition states" fire department connections shall not be on the suction side of fire pumps"
Alex
10/29/2021 07:03:40 am
Hi Anonymous, Leave a Reply. |
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