NFPA 25 added a section regarding this in 2023. 8.3.3.11: Where simultaneous operation of multiple pumps is required to meet the water-based system demand for flow and pressure, the requirements of 8.3.3.10(2) shall be repeated at each flow condition with all pumps operating simultaneously.
So, your test-header will need to accommodate the combined flow. Hope this helps! Eric Rieve, SET Rieve Fire Protection From: Fpdcdesign <fpdcdes...@gmail.com> Sent: Monday, January 29, 2024 11:51 AM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org> Subject: [Sprinklerforum] Re: Fire Pump testing procedures I would think you would need to do both, at least initially. Individually to find out that each pump is working correctly itself and both to verify that the full demand can be met. For a future testing program, probably something specialized would be needed. Make sure it is available in writing. On Jan 29, 2024 at 11:45 AM, <Craig Prahl<mailto:craig.pr...@jacobs.com>> wrote: I have a project that requires two 1500 gpm pumps to meet the most demanding system requirements. Client doesn’t want any pumps over 1500 gpm. Long story. As far as testing, would you test each pump individually or together or ?? Trying to establish what we need as far as a test header. Thanks. Craig Prahl | Jacobs | Fire Protection SME – Special Hazards | craig.pr...@jacobs.com<mailto:craig.pr...@jacobs.com> | 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 ________________________________ NOTICE - This communication may contain confidential and privileged information that is for the sole use of the intended recipient. Any viewing, copying or distribution of, or reliance on this message by unintended recipients is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and deleting it from your computer. _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org>
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