Damn Steve, talk about a "Friday" question.. A quick search puts us outside of industry and around a grand.
This interests me, so I may peek around a bit further when I get a chance? Listing issues? IAW 72 or jurisdiction etc.? R/ Matt Matthew J. Willis Ferguson Fire Design, LLC D: (602) 337-0721<tel:6023370721> C: (307) 236-8249<tel:3072368249> [email protected]<mailto:[email protected]> [cid:30d3917c-9c34-4508-a345-3a13cfcd5707]<https://outlook.office.com/bookwithme/user/[email protected]?anonymous&ep=signature> Book time to meet with me<https://outlook.office.com/bookwithme/user/[email protected]?anonymous&ep=signature> ________________________________ From: Steve Leyton <[email protected]> Sent: Thursday, February 12, 2026 4:43 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Waterflow Switch for combined/passive purge systems Caution: This email originated from outside of the organization. DO NOT click links or open attachments unless you recognize or trust the sender. Who can help me ID a flow switch with an adjustable range of triggering flow rates that can be used on a combined or PP system per 13D without ringing the bell upon operation of a plumbing fixture (or 2 or 3?) Signal Safe has a switch with a range of 4-10 gpm but I don’t see where it’s adjustable for a specific flow rate in that range, only for the delay on the retard feature. Working with a homebuilder who is especially sensitive to fire safety and is pro-sprinkler, but like any developer they want to be as cost-efficient as possible. We’re doing a deep-dive into PEX and CPVC and hybrids that use some of both, stand-alone, passive purge, fully integrated domestic/fire, and want to have options for jurisdictions that require an audible alarm. [cid:[email protected]] Steve Leyton, President T | 619.255.8964 x 102 | www.protectiondesign.com<https://url.avanan.click/v2/r01/___https:/urldefense.com/v3/__http:/www.protectiondesign.com/__;!!OBed2aHXvKmHymw!xUP_44imxZbNarYK4A-T5bTTThDYa0yfWnYjTflMMWnrGIjCKgkSfp93-VfkONuBdgFUqckgAlRqJYwt2l_VlQhycZynMg$___.YXAzOnByb3RlY3Rpb25kZXNpZ25hbmRjb25zdWx0aW5nOmE6bzoyZGRjZTc0MjZlMzNjZjAwM2ViYjYwNDAzYzk5ZTY4NTo3Ojc3MTk6OGI3ZjI3ZGQwNWRjZjlkYzljNzU3OTViNGFmZGI3NDlkMmYyZWExYWEwMmU5NjQwMjg3ZTg4NTBmYzY5ZGNmYTpoOlQ6Rg> 2851 Camino Del Rio South | Suite 210 | San Diego, CA 92108 Fire Protection System Design | Consulting | Planning | Training
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