This is a VERY interesting topic for discussion. Hanger vs Structure
The following is pure speculation and open for corrections. The listing probably does not touch on minimum structural specifications - at least directly. The catch-all "when installed in accordance with manufacturer instructions" ties the listing to the structure indirectly. The manufacturer sees the customer installer needing some direction on minimum gauge thickness, does some testing, and provides that guidance in the data sheet. End of speculation. Even if the above speculation is accurate, you still have to get it blessed by the SEOR. It's his baby and his 50lb load limit. Generally speaking, SEs, MEs, and CEs don't do listings. You may need to go to the SEOR with Tolco test data and hat in hand. J. Scott Mitchell, P.E. --- On Mon, 9/28/09, Thom McMahon <[email protected]> wrote: I would pull the UL listing for the 78 and read it, if it says what the catalog says your AOK. Any hanger or attachment listed for fire sprinkler systems is assumed to meet all of the NFPA requirements for load. That is why the minimum desk thickness is 18ga. Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 _______________________________________________ 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)
