I would check with the manufacturer of the specific sprinkler you are proposing to install. Dry sprinklers have internal moving parts and the designs aren't necessarily the same between different ones; if there's a measurable added friction loss in the barrel from flow over and through the various tube and spring assemblies, I'd wager they've got the net K or pressure loss available.
Steve Leyton -----Original Message----- From: [email protected] on behalf of Matt Grise Sent: Thu 8/15/2013 6:40 AM To: [email protected] Subject: RE: Equivalent Length of Dry Sprinkler for Hyd Calcs If you call tyco they can probably answer that for you. I was under the impression that the given k factor applied to the entire device - so that the dry head ended up discharging as if a regular head of the same k factor was installed directly. Matt Grisé PE*, LEED AP, NICET II Sales Engineer Alliance Fire Protection 130 w 9th Ave. North Kansas City, MO 64116 *Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.927.0222 cell www. AFPsprink.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Spencer Allen Sent: Thursday, August 15, 2013 8:25 AM To: [email protected] Subject: Equivalent Length of Dry Sprinkler for Hyd Calcs Hi Forum, I was wondering if anyone was aware of a manufacturer which published equivalent lengths of dry sprinklers for use in hydraulic calculations? Best Regards, Spencer Allen Fire Engineering Solutions | Sprinkler Design & Consultancy _______________________________________________ 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
