Nope. These are not bushings for sprinklers connected directly to branch lines for future accommodation of a suspended ceiling, and standard fittings of the required size were available, so neither of the exceptions applies.
These are bushings that were installed by the contractor for simplicity in construction, not because they met any of the design criteria. Paul J. Pinigis, P.E. Chief Life Safety Engineer -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Posey, Mike Sent: Monday, March 12, 2007 2:24 PM To: [email protected] Subject: RE: Equivalent length of bushings NFPA 13, 2002 edition...... 6.4.6.2 Hexagonal or face bushings shall be permitted.... 6.4.6.3. Hexagonal bushings as permitted....... USE OF BUSHINGS IS ALLOWED Mike Posey Direct: 972-587-5232 [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Pinigis Sent: Monday, March 12, 2007 1:03 PM To: [email protected] Subject: Equivalent length of bushings Does anyone out there know where I can find the equivalent length of various bushings that were installed in a system. I know that NFPA 13 does not permit the use of bushings, and that they do not require additional equivalent length to be added to the calculations for the bushings, but I would like to include them in our calculation for peace-of-mind. Paul Pinigis Hankins and Anderson Consulting Engineers 4880 Sadler Road Suite 300 Glen Allen, VA 23060 v: (804) 285.4171 f: (804) 217.8520 http://www.haengineers.com _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
