Kevin, Why a poor design? What about someplace like Phoenix where the risers are outside the building? Even if more expensive than a single clapper as Lamar points out I'd bet cheaper than the single clapper type plus a check valve.
On Wed, Apr 7, 2010 at 10:59 AM, Law, Kevin W <[email protected]> wrote: > Poor design? Who made it? > > > Kevin Law, PE > Bechtel National, Inc. > Waste Treatment Project > Fire Protection Engineering > Work (509) 371-3280 > Cell (509) 531-5715 > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Doug Hicks > Sent: Friday, April 02, 2010 7:24 AM > To: sprinkler board > Subject: FDC > > We have a 90° Siamese double clapper FDC rising vertically from the ground. > The double clapper is hinged at the top. Is there a reason for the double > clapper instead of the more common single swinging clapper? > > Douglas Hicks > General Fire Equipment Co of Eastern Oregon, Inc > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
