4-way bracing is required on all risers over 3 ft in length. A riser is defined as a vertical supply pipe. I assume you are wondering if a sprig needs to be 4-way braced if it is over 3 ft. in length? A sprig is a vertical supply pipes but it is also defined separately so I would say no you would not need to brace and sway bracing is required only on BLs that are greater than 2 in dia. so I would say that would apply to the sprigs because a sprig is a BL by definition.
Now a RN over 3 ft. in length just going by the definitions looks like it would need to be braced. Might want to check the archives cuz I think this was hashed out a couple of years ago?? Reed A. Roisum, CET Ulteig Engineers, Inc. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brian Harris Sent: Tuesday, August 10, 2010 7:39 AM To: [email protected] Subject: 4-WAY BRACES Importance: High Forum- What is the general consensus about putting 4-way braces on "any" vertical pipe that is over 3 feet long? I was under the impression it was for Risers only, is that not the case? Thanks! Brian Harris Design Engineer First Defense Fire Protection 11957 Ramah Church Road Huntersville NC 28078 [email protected] www.firstdefensefire.com <outbind://80/www.firstdefensefire.com> Ph: 704.948.3506 Fax: 704.948.3507 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
