Well, that's a lot of fancy words that don't say non-combustible. Some pipe won't sustain combustion without direct flame impingement, so maybe that's what they meant when they said it wasn't combustible. But it also won't retain it's shape and when that occurs you have a breach in the rated wall.
Easiest thing to do is if you have to go through a rated wall, transition to steel and fire caulk it at the penetrations and be done with it. Why debate it? Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Thomas Watt Sent: Tuesday, April 28, 2009 1:56 PM To: [email protected] Subject: Re: Rating of the sprinkler escutcheon >From the Lubrizol website... The flame spread and smoke generation characteristics of TempRite CPVC materials have been evaluated by Underwriters Laboratories, Inc. (ULI), Southwest Research Institute (SWRI), and Factory Mutual (FM) employing a number of recognized test methods. ULI evaluated TempRite CPVC for flammability in accordance with UL 94, which is used for determining the flammability of plastic materials used in the components and parts of finished products. This test measures a material's resistance to burning, dripping, glow emission and burn through. CPVC has achieved the highest rating available within the scope of this test of V0, 5VB and 5VA. ----- Original Message ----- From: "Greg McGahan" <[email protected]> To: <[email protected]> Sent: Tuesday, April 28, 2009 1:31 PM Subject: RE: Rating of the sprinkler escutcheon When I called Lubrizol they indicated that the cpvc should be considered non-combustible UNLESS I totally misunderstood them (very possible this week). Greg McGahan Operations Manager Living Water Fire Protection 1160 McKenzie Road P.O. Box 877 Cantonment, Florida 32533 (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 [email protected] _______________________________________________ Sprinklerforum mailing list http://lists.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 http://lists.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)
