We have a company in town quoting to do the five-year inspection on the check valves on the FDC. I have never seen this before and don't read that through my interpretation in NFPA#25. Can I get some clarification please?
NFPA 25 from 2017, chapter 18.104.22.168 states that check valves shall be checked internally to verify components operate properly.
The company I work for does 5 year inspections where we do internal inspections, gauge maintenance, hydro testing (if required) & check valves( including trim).
Hope that helps
Thanks so much Steve for your input. We are ahead of the curve here, and do more than everyone else. But no one has done these before. NFPA 25 has a separate Area dealing with fire department connections. It calls for hydrostatic test of the pipe between the input and the check every five years and does not mention the 5 year on the FDC valve. Are you doing the Hydrostatic test as well? The section you refer to talks about riser check valves requiring this internal inspection. Does this make them separate from the FDC check valve? Would really like an interpretation of this from NFPA if possible. Also, if doing the FDC Hydrostatic test, how are you doing it? Thanks again for your help.
What were doing on a 5 year wet system is main riser, cross main, and branch line visual internal inspection. All Check valves internal inspection( if necessary a flush out by flipping a grooved FDC check around and running water through). To be honest we fill the FDC with static pressure to check for leakage. If the system has a roof or wall hydrant it gets a full hydro test. We flow the most remote standpipe connection and measure with our hose monster inline flow meter. Also,Water gauge calibration/replacement. During the internal inspection we determine if the system needs a full flush (rare) we are also looking for m.i.c or slime.
To be up front with you 90% of our customers don't spend the money on this, but we do service 4 hospitals and 2 state universities who do. The hospitals don't really have a choice because their records are under review by the joint commission and dept. of public health.
We also have a few parking garages that are dry manual standpipe and we hydro test those every 5 years. We often find problems with these systems during that testing and it shows the necessity for it.
its taken me about ten years to develop those accounts to get that work and it helps to have a national sprinkler service company to compete against because they were also pushing the same testing at a much higher cost.
hope that helps.
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