Can you use a pressure switch to detect a drop in pressure rather than a vain type flow switch? If there is a jockey pump and therefore a steady system pressure you should be able to detect the pressure drop from static pressure to residual pressure.
Potter makes a pressure switch with a pneumatic retard device that could also compensate for some short term pressure variations. Mike C Sent from my iPhone On Sep 19, 2013, at 10:07 AM, Mike Henke <[email protected]> wrote: > Thomas, > > I do not believe that anyone makes a flowswitch for schedule 80 pipe that is > Listed for use on fire sprinkler systems. Can you replace a spool piece with > schedule 40 pipe? > > Before anyone suggests, no you cannot just trim the paddle of a standard > flowswitch. > > What type of facility is it that is using sched 80? > > Regards, > > mike > > Mike Henke CET > Sprinkler Product Manager > Potter Electric Signal Co. > www.pottersignal.com > 314-595-6740 Direct > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Thomas > Watt > Sent: Thursday, September 19, 2013 9:24 AM > To: [email protected] > Subject: Flow switch for 6" sch80 > > Can't seem to find it. Anyone? > _______________________________________________ > 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
