It comes from an elevated municipal water tank.  Flow is not an issue.

Craig Prahl | Jacobs | Fire Protection SME – Special Hazards | 
[email protected]<mailto:[email protected]> | 
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From: Fpdcdesign <[email protected]>
Sent: Wednesday, July 12, 2023 4:53 PM
To: Discussion list on issues relating to automatic fire sprinklers 
<[email protected]>
Subject: [EXTERNAL] [Sprinklerforum] Re: Forward Flow testing valve arrangements

Pretty good supply if you can flow 1800 gpm at a good pressure without a pump.




On Jul 12, 2023 at 4:37 PM, <Craig Prahl<mailto:[email protected]>> wrote:
Providing an array of 2.5” hose valves as a test header for testing the 
backflow preventer.  Sprinkler System demand is around 1800 gpm.

So, here’s the debate, when determining how many valves you need do you 
consider each valve capable of 250 gpm or 500 gpm flow?

Nothing in NFPA 13, the debate goes on………….

Craig Prahl | Jacobs | Fire Protection SME – Special Hazards | 
[email protected]<mailto:[email protected]> | 
www.jacobs.com<https://urldefense.com/v3/__http:/www.jacobs.com/__;!!KZTdOCjhgt4hgw!-_khxU8gU0_6jc895I7kRbnU8JghRDsWgqOblZ4jr7Qp2IVbR30VYw_hWvNFtphnl0uWpB9KIvbYi1pvZz4$>
1041 East Butler Road   Greenville, South Carolina  29606
CONTACT BY: Phone 1-864-676-5252, Email or MS TEAMS


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