Can somebody on East Coast big city please respond? What about using a PS15 Nominal System Pressure 15 psi low pressure switch on the dry system standpipe?
On Wed, Oct 20, 2021 at 2:08 PM Mike Morey via Sprinklerforum < [email protected]> wrote: > I don’t know that their is an express limit other than minimum 7psi. That > said for safety reasons if you have an air source capable of anything close > to that I’d come up with something to regulate it. Doesn’t 13 limit air > testing to 60 psi for safety? Air pressure is much more dangerous than > water as far as amount of energy stored. > > > Mike Morey > > CFPS 3229 • NICET S.E.T. 123677 > > Project Manager • Fire Protection Group > Shambaugh & Son, LP an EMCOR Company > > 7614 Opportunity Drive • Fort Wayne, IN • 46825 > > direct 260.487.7824 / cell 260.417.0625 / fax 260.487.7991 > email [email protected] > > [Image] > > ________________________________ > From: Sprinklerforum <[email protected]> on > behalf of Matthew J Willis via Sprinklerforum < > [email protected]> > Sent: Wednesday, October 20, 2021 4:51:07 PM > To: [email protected] < > [email protected]> > Cc: Matthew J Willis <[email protected]> > Subject: Supervised Air Manual Dry Standpipe > > > BE ADVISED - This email originated outside EMCOR. > > > > Having an interesting discussion with a senior field man. > > He is concerned that some of the compressors pump to 125 +/-, and was > asking about an AMD. > > I have searched, and also from a hands-on standpoint, do not believe one > is required. > > It certainly is if we introduce a dry valve or deluge into the standpipe > system, but then it gets a different name. > > NFPA 72 only mentions a 10 psi differential for supervisory circuits with > air. > > Is an AMD required on this type standpipe? > > R/ > Matt > > Matthew J. Willis > Design Manager / Code Compliance > 1530 Samco Road, Rapid City, SD 57702 > Office-605.348.2342 /Direct-605.593.5063/Cell-605.391.2733 > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > https://urldefense.com/v3/__http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org__;!!FaxH778!Me68QOsN00ZJIIRC_8sOvWRaXf3Z8J8WpecLIJ7HV906Frsxib_TWTneXSPMdVXX$ > > This message is for the named person's use only. It may contain > confidential, proprietary or legally privileged information. No > confidentiality or privilege is waived or lost by any mistransmission. If > you receive this message in error, please immediately delete it and all > copies of it from your system, destroy any hard copies of it and notify the > sender. You must not, directly or indirectly, use, disclose, distribute, > print, or copy any part of this message if you are not the intended > recipient. > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
