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, [email protected] 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 > [email protected] <mailto:[email protected]> > > > From: Sprinklerforum [mailto:[email protected] > <mailto:[email protected]>] On Behalf Of Dewayne > Martinez > Sent: Wednesday, November 30, 2016 11:17 AM > To: [email protected] > <mailto:[email protected]> > 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 > [email protected] > <mailto:[email protected]> > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org>
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