I know Ken Wagoner. His eyes are ALWAYS dilated. Sorry Frank, Steve L.
From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mitchell, Scott Sent: Thursday, April 26, 2018 12:35 PM To: [email protected] Subject: RE: HDPE's PE 4710 resin for FP use Yes, we've been dealing with it (for years). In your spec, you could reference the equivalency clause, section 1.4, of NFPA 24. PE4710 is clearly superior to the other resins. It would be a slam dunk. NFPA 24 will not be updated unless someone submits public input. If you don't do it, I might. I imagine Ken Wagoner's eyes are already dilated. J. Scott Mitchell, PE Senior Fire Protection Engineer Mission Engineering CNS Y-12 | 865-576-5258 CNS PTX | 806-477-5883 [thMYA3SSEP] From: Sprinklerforum [mailto:[email protected]] On Behalf Of Hinson, Ryan Sent: Thursday, April 26, 2018 2:59 PM To: [email protected] Subject: HDPE's PE 4710 resin for FP use UG FW forumites, Not sure if any of you are aware of this but NFPA 24 (2016) edition requires HDPE piping materials to be selected from AWWA C906 per Table 10.1.1. NFPA 24 Section 2.3.3 specifically references the 2007 edition of AWWA C906. In AWAA C906 (2007), PE 4710 is not available. The allowable resins in this standard are/were PE 2406, PE 3406, and PE3408. To comply with this, when actually purchasing the HDPE for fire water service, we have been stipulating, and being supplied with, PE4710 (previously dual-certified to PE 3408 including FM approvals matching those of PE3408) for as long as I can remember. FM 1613 Approval Standard dated 12/31/17 has finally recognized the improved hydrostatic design stress characteristics of this resin and reclassified PE 4710 resin pressure classifications matching those the manufacturers had been stating from some time. PE 3408 is being or has already been phased out per our known manufacturers now only making/using PE 4710 resins in HDPE piping and fitting production. Since the 2016 edition of NFPA 24 still only recognizes AWWA C906 (2007), we are having to take the FM-approval as 'overruling' the Standard in this instance or else we are having difficulty writing spec language that allows us to provide PE 4710 for fire protection service because the NFPA 24 does not yet 'allow' for this resin. Have any of you run into this? Do you know if NFPA 24 will be updated so that the 2015 edition of AWWA C906, which does include reference to PE 4710 resins (and others), will be acceptable? Regards, Ryan L. Hinson, PE*, SET** \ Burns & McDonnell Senior Fire Protection Engineer, Fire Protection Engineering Group O 952-656-3662 \ M 320-250-5404 \ F 952-229-2923 [email protected]<mailto:[email protected]> \ burnsmcd.com<http://www.burnsmcd.com/> 8201 Norman Center Drive, Suite 300 \ Bloomington, MN 55437 [cid:[email protected]]<https://www.linkedin.com/company/burns-&-mcdonnell> [cid:[email protected]] <https://www.facebook.com/BurnsMcDonnell> [cid:[email protected]] <https://twitter.com/BurnsMcDonnell> [cid:[email protected]] <https://www.youtube.com/user/burnsmcd> [cid:[email protected]] <http://www.burnsmcdblog.com/> [cid:[email protected]] <https://www.linkedin.com/profile/public-profile-settings?trk=prof-edit-edit-public_profile> Proud to be one of FORTUNE's 100 Best Companies to Work For Please consider the environment before printing this email. *Registered in: LA, MD, MN, PA, TX, & UT **NICET IV - Water-Based Systems Layout This email and any attachments are solely for the use of the addressed recipients and may contain privileged client communication or privileged work product. If you are not the intended recipient and receive this communication, please contact the sender by phone at 816-333-9400, and delete and purge this email from your email system and destroy any other electronic or printed copies. Thank you for your cooperation. [Logo_1_Primary_2Color_sm] Create Amazing.
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