Matt,
You can call me and I can explain this. It's a lot to type. Henry Fontana Operations Manager (NYC) Johnson Controls Fire Protection 100 Lighting Way Secaucus, NJ 07094 Cell: 201-210-9873 henry.font...@jci.com -----Original Message----- From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Matt Grise via Sprinklerforum Sent: Thursday, February 17, 2022 1:10 PM To: sprinklerforum@lists.firesprinkler.org Cc: Matt Grise <m...@afpsprink.com> Subject: filling a pre-action system with water I am curious about how single-interlock pre-action systems get filled up with water: When the detectors activate and open the deluge valve but no sprinkler head is open - how quickly does the piping actually fill up with water? Is it fast enough that you need to worry about a water hammer if the piping fills before the heads start to open? I did not know if the supervisory air just kind of oozes out and lets the water in slowly, or if the valve opens, (maybe kicks the pump on) and really blasts it in there. Does anyone out there have experience with this sort of thing? I would definitely appreciate some insight into how it actually goes down. Thanks! Matt _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.firesprinkler.org%2Flistinfo.cgi%2Fsprinklerforum-firesprinkler.org&data=04%7C01%7CHenry.Fontana%40jci.com%7C9e7ae3fb54184669b5af08d9f240b0c2%7Ca1f1e2147ded45b681a19e8ae3459641%7C0%7C0%7C637807182789862070%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Llp%2FN275sqrT84Wdlr1wntx4zjlcti2HX%2Fy1HqfebcA%3D&reserved=0 _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
