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What sprinkler type or finish would you recommend for a highly corrosive area? In this case I'm working on a pool equipment room.
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7 Comments
Mike
11/19/2018 10:11:46 am
Go to the sprinkler data sheet and look under finishes. Each manufacturer has footnotes. White Teflon seems to be the best. A more expensive alternative is stainless steel and you can always call the manufacturer.
James Phifer
11/19/2018 10:23:12 am
The last time we provided a sprinkler system for a pool, we used stainless steel pipe and stainless steel heads. Expensive but effective.
Dave L.
11/19/2018 10:54:07 am
(NFPA #13 6.2.6.1 and A.6.2.6.1)
Christopher
11/19/2018 12:52:07 pm
I just had lunch with the national viking rep and we discussed this very issue. We had be specifying PTFE for pool equipment areas and were told this was incorrect. PTFE apparently is not good for chlorine areas which contradicts Vikings earlier statements. The rep suggest that poly or wax is the best option. Stainless steel did not hold up well to chlorine in their long term test as well.
Dave L.
11/20/2018 10:23:07 am
Thanks, that’s interesting info, Christopher. While it does not recommend which finish for what application, if you can find it, Viking’s “Sprinkler Corrosion Resistant Finishes” data sheet does a very good job of comparing the different finishes relative to each other, and which parts are actually coated. Poly for example generally only protects the frame and deflector, while other finishes protect the other components, the whole assembly, or even the waterway. While a designer/PM, I found it very valuable to build working relationships with the major reps. If you filter through their inherent biases, I have usually found them to be of high integrity and very helpful. They often buy lunch, too.
Dave L.
11/20/2018 03:36:14 pm
I just talked to a technical services rep at yet another sprinkler manufacturer, also recommended against PTEE and even stainless. Recommended educating the owner that the sprinkler may have to be replaced more frequently. But wow, maybe factory-dipped wax is still the best. Here is a related answer from NFPA in an NFPA 25 Q&A I Googled:
Bob peters
2/3/2022 09:54:39 am
What is the coating for sprinklers over pools and pool filter/supply rooms. Upright type. Leave a Reply. |
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