You can only trace valves if the product says it is listed for protecting valves in NFPA 13 systems or something similar.
You can’t automatically assume you can do anything. What does the listing state, that’s where you start. Craig L. Prahl Fire Protection Group Lead/SME CH2M 200 Verdae Blvd. Greenville, SC 29607 Direct - 864.920.7540 Fax - 864.920.7129 CH2MHILL Extension 77540 craig.pr...@ch2m.com From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Dewayne Martinez Sent: Thursday, December 01, 2016 3:53 PM To: sprinklerforum@lists.firesprinkler.org Subject: RE: pipe heat trace [EXTERNAL] So I can heat trace the sectional valves since they are not specifically excluded per NFPA 13 and 14? From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of Roland Huggins Sent: Thursday, December 01, 2016 10:23 AM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: Re: pipe heat trace NFPA 14 has similar requirements for the dry pipe valve but this is a sectional control valves (another term from 13 since 14 does not differentiate by name but it helps focus the discussion). Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org<http://www.firesprinkler.org/> On Nov 30, 2016, at 12:11 PM, craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com> wrote: Heat trace systems for fire protection are to be Listed for their intended purpose. You need to look at the listing to see what the system’s installation limitations are. Some systems may only be used for pipe up to a certain size for example. No you cannot use heat tape on system valves. The systems are also to be electrically supervised, typically accomplished through the fire alarm system. See 2013, NFPA 13, 8.16.4.1.4 – 8.16.4.1.4.2 for more info. NFPA 13, 2013: 7.2.5.2.3 Heat tape shall not be used in lieu of heated valve enclosures to protect the dry pipe valve and supply pipe against freezing. This is under Dry Pipe Valves, there is also similar verbiage under preaction and deluge valves in 7.3.1.8.2.3 since dry, preaction or deluge would be the most likely systems used where the system could be subject to freezing. it would be assumed that a wet pipe system valve would automatically be located in a heated area. Craig L. Prahl Fire Protection Group Lead/SME CH2M 200 Verdae Blvd. Greenville, SC 29607 Direct - 864.920.7540 Fax - 864.920.7129 CH2MHILL Extension 77540 craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Dewayne Martinez Sent: Wednesday, November 30, 2016 11:17 AM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: pipe heat trace [EXTERNAL] I need to heat trace some standpipe feed mains in a parking garage when running from the riser room to the stairwells. Is it acceptable to also heat trace the standpipe control valves? They would prefer to keep them out of the stairwells. Thanks, Dewayne _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org<mailto:Sprinklerforum@lists.firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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