Check the UL listing requirements, I believe the sprinkler heads are pressure tested at 500 PSI. Mark at Aero
-----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, August 06, 2014 9:05 AM To: [email protected] Subject: Excessive system pressure and opening of sprinklers Got a client that has had more than one incident of "accidental" sprinkler discharge they claim is due to municipal pressure surges. Static pressure on this industrial system is 150 psi, and a surge tank was installed a couple of years back to mitigate alleged pressure spikes. Anyone heard of sprinklers opening due to a pressure spike? It was only one head out of multiple hundreds in the building. Craig L. Prahl Fire Protection Group Lead CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29303 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] _______________________________________________ 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
