Thanks Thomas and Jamie. Note, the 12" cumulative length wording is only under the armover section. I am not saying I disagree, just a note.
Any other thoughts?? Duane Johnson, PE Program Manager Division of the Fire Marshal (Support Contractor) Office of Research Services National Institutes of Health 301-496-0487 "Protecting Science - One Sprinkler at a Time" -----Original Message----- From: Thomas Watt [mailto:[email protected]] Sent: Tuesday, September 18, 2012 12:21 PM To: [email protected] Subject: Re: Hangers serving pendents over 100psi Is an additional hanger required in the 20" of pipe mentioned? Certainly. But, these 2 hangers do not need to be less than 2 feet apart. They can be spread apart. Half the max allowable distance? end of line hanger spacing/pipe size would not apply once that armover is hung, right? As for the hanger assembly limiting the upward movement, I never noticed this discrepancy before. Thanks for pointing that out. I was taught to always have my rods 1/4 inch from pipe on all armovers and ends of line. Even before cpvc made the issue commonplace. I rarely ever saw those hangers with the foot-type thing that covers the end of the rod. They should have been mandated. Lots of damage done to cpvc pipe by sharp rod ends, stiff-rodding, vibration, expansion, etc.... But that is another thread in itself. Thomas -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120918/6658c5ba/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
