It was my understanding that this section was addressing ductile iron pipe since there was some confusion on whether you should be using Sch 40 or Sch 10 carbon steel once above the slab or if it was acceptable to extend the ductile iron pipe above the slab.
Plastic above the slab is a disaster waiting to happen. I've seen pictures of plastic stub-ups melting in a fire scenario and rendering the sprinkler system inoperable. Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roland Huggins Sent: Wednesday, July 10, 2013 10:58 AM To: [email protected] Subject: Re: Underground Stub-Up Historically I've always said NO since a pure application of the listing would conflict with having underground pipe installed above ground. But a pure application of terms doesn't necessarily get in the way of actions taken by the technical committee. The same could be said for requiring listed back flow preventers since they are classified (an unacceptable category for all other listed devices). Since this is a common practice, the TC addressed stub-ups last cycle by adding the below: 6.3.1.1.1* Underground pipe shall be permitted to extend into the building through the slab or wall not more than 24 in. (0.6 m). Roland Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On Jul 10, 2013, at 5:38 AM, Mike Hairfield <[email protected]> wrote: > Got a project that HDPE AWWA C906 pipe and fittings were installed. > > > > The stub-up through the floor is a piece of HDPE AWWA C906 pipe with > > a cap fused on the end and not rodded. > > > > I've never seen this done before, is it acceptable with NFPA #24? > > > > Mike Hairfield > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
