I agree. I don’t see what information you’re really wanting to get. Considering it’s a restricted orifice. There is a process like this that you need to do on a deluge. You would choose the Inspector‘s test or the furthest most accessible point and get your readings while doing a full flow test. I guess that test would be more understandable with the idea that paddle water flow switches require a minimum GPM to activate so if you get a waterflow alarm, that's not activating this could possibly be a foreseeable way to diagnosed.
Get Outlook for iOS<https://aka.ms/o0ukef> ________________________________ From: Fpdcdesign <[email protected]> Sent: Wednesday, March 11, 2026 7:34:19 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: inspector test connection The intent of the ITC is to simulate the flow of one sprinkler in order to test the alarm activation. The fire pump has nothing to do with it. There is no measuring the flow from it. However, if you colleague is going to pitot an ITC, call me. I want to watch. Todd Williams Fire Protection Design/Consulting Stonington, CT 860-608-4559 On Mar 11, 2026 at 5:54 AM, <Teaster1974<mailto:[email protected]>> wrote: I have a colleague that says must use fire pump rated pressure to determine flow from inspector’s test connection. I said its a restricted orifice to represent a sprinkler head flowing. Therefore pump pressure is negligible. Who is right? _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]
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