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 <dsm...@ci.oswego.or.us> To: sprinklerforum <sprinklerforum@lists.firesprinkler.org> 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 dsm...@ci.oswego.or.us 300 B Avenue | PO BOX 369 Lake Oswego OR 97034 From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]On Behalf Of Richard Carr Sent: Wednesday, April 26, 2017 4:00 PM To: sprinklerforum@lists.firesprinkler.org 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" <dsm...@ci.oswego.or.us> Date: 4/26/17 6:52 PM (GMT-05:00) To: sprinklerforum@lists.firesprinkler.org 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 dsm...@ci.oswego.or.us 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 Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
