I also would be interested in the their response. NFPA 24’s joint restraint section (10.8.3 – ’10 & ’13 and 10.6.2 – ’16) is quite clear in that “restrained joint systems shall include one or more of the following”: (1) Locking mechanical or push-on joints (2) Mechanical joints utilizing setscrew retainer glands (3) Bolted flange joints (4) Heat-fused or welded joints (5) Pipe clamps and tie rods (6) Threaded or grooved joints (7) Other approved methods or devices
Section 10.8.3.1(10.6.2.1) is all about proper use of rodding satisfying (5) above. Hope this helps, Ryan L. Hinson, PE*, SET** \ Burns & McDonnell Senior Fire Protection Engineer O 952-656-3662 \ M 320-250-5404 \ F 952-229-2923 [email protected] \ burnsmcd.com<http://www.burnsmcd.com/> 8201 Norman Center Drive, Suite 300 \ Bloomington, MN 55437 *Registered in: MN, PA, & TX **NICET IV - Water-Based Systems Layout From: Sprinklerforum [mailto:[email protected]] On Behalf Of Parsley Consulting Sent: Thursday, April 27, 2017 10:37 AM To: [email protected] Subject: Re: In Building Riser -- Restraints Shawn, It might be worth asking the people at Ames/Watts why they provide rodding brackets on the device if that's an unacceptable method of joint restraint. I'd be interested in the answer. sincerely, Ken Wagoner, SET Parsley Consulting 350 West 9th Avenue, Suite 206 Escondido, California 92025 Phone 760-745-6181 Visit our website<http://www.parsleyconsulting.com/> On 04/27/2017 7:43 AM, Shawn Chapman wrote: Ames/Watts will NOT go on record to allow it without a thrust block @ the turn up elbow. Practicality?? to rod back, but no document to allow. Just went through the same scenario. -----Original Message----- From: Smith, David <[email protected]><mailto:[email protected]> To: sprinklerforum <[email protected]><mailto:[email protected]> Sent: Wed, Apr 26, 2017 7:18 pm Subject: RE: In Building Riser -- Restraints Great, thanks! This was actually the first time we had it come up on the 1 piece riser. I’m assuming the other underground contractors simply poured a thrust block because it was either habit or easier than educating us… David Smith | DeputyFire Marshal P 503.635.0378 | F 503.635.0376 [email protected]<mailto:[email protected]> 300 B Avenue | PO BOX 369 Lake Oswego OR 97034 From: Sprinklerforum [mailto:[email protected]]On Behalf Of Richard Carr Sent: Wednesday, April 26, 2017 4:00 PM To: [email protected]<mailto:[email protected]> Subject: RE: In Building Riser -- Restraints You have 3 options, Thrust block Mega lug type Rod back to fitting. Sent from my T-Mobile 4G LTE Device -------- Original message -------- From: "Smith, David" <[email protected]><mailto:[email protected]> Date: 4/26/17 6:52 PM (GMT-05:00) To: [email protected]<mailto:[email protected]> Subject: In Building Riser -- Restraints Quick question came up recently on the 1 piece in building risers. Typically we have seen contractors provide thrust blocks at the bend. We’ve had one installed recently without one and the foundation was poured before we were able to view it. The contractor is advising us that a thrust block is not needed. The specification sheet provided advises: If the piping installation is essentially complete, the piping restraints may adequately take the thrust loads generated by having a blind end on the pipe system. In these cases, no special actions to restrain thrust or side loads are required, and the fitting installed in the system may be adequate for hydrostatic testing. Is the restraint at the pipe connection on the supply side all that is needed? David Smith | DeputyFire Marshal P 503.635.0378 | F 503.635.0376 [email protected]<mailto:[email protected]> 300 B Avenue | PO BOX 369 Lake Oswego OR 97034 PUBLIC RECORDS LAW DISCLOSURE This e-mail is a public record of the City of Lake Oswego and is subject to public disclosure unless exempt from disclosure under Oregon Public Records Law. This email is subject to the State Retention Schedule. _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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