Sprig ups and theTyco Model ESFR-17
Sprig ups and theTyco Model ESFR-17
(OP)
I think I know the answer but here goes anyway.
I have an ESFR job where I want to use the Tyco Model ESFR-17 upright sprinkler http ://www.tyc o-fire.com /TD_TFP/TF P/TFP316_1 0_2009.pdf having a k-factor of 16.8.
From NFPA #13 2002 Edition having to do with upright ESFR sprinklers
8.12.5.3.2 Upright Sprinklers.
8.12.5.3.2.1 Upright sprinklers shall be installed on sprigs arranged so that the deflector is a minimum of 7 in. (178 mm) above the top of the sprinkler pipe.
8.12.5.3.2.2 K-11.2 upright sprinklers shall be permitted to be installed on sprigs arranged so that the deflector is a minimum of 7 in. (178 mm) above the top of the sprinkler pipe.
But on the lower right corner of page 2 of the sprinkler data sheet:
Obstructions Below Upright ESFR Sprinklers, Including Branch Lines
Per the requirements of FM, obstructions below upright ESFR Sprinklers can be ignored as follows:
• Open-web bar joists or trusses having chords no more than 4 inches (102 mm) wide
• Bridging or wind bracing no more than 4 inches (102 mm) wide
• Individual pipes and conduit 4 inches (102 mm) diameter or less (i.e. 3 inch (DN80) pipe size or less will not require sprigs)
• Individual groups of smaller pipe or conduit having a total width of 4 inches or less
It's not an FM project but I think I would be good to go per NFPA #13 on a 3" branch line without sprig ups?
Thanks.
I have an ESFR job where I want to use the Tyco Model ESFR-17 upright sprinkler http
From NFPA #13 2002 Edition having to do with upright ESFR sprinklers
8.12.5.3.2 Upright Sprinklers.
8.12.5.3.2.1 Upright sprinklers shall be installed on sprigs arranged so that the deflector is a minimum of 7 in. (178 mm) above the top of the sprinkler pipe.
8.12.5.3.2.2 K-11.2 upright sprinklers shall be permitted to be installed on sprigs arranged so that the deflector is a minimum of 7 in. (178 mm) above the top of the sprinkler pipe.
But on the lower right corner of page 2 of the sprinkler data sheet:
Obstructions Below Upright ESFR Sprinklers, Including Branch Lines
Per the requirements of FM, obstructions below upright ESFR Sprinklers can be ignored as follows:
• Open-web bar joists or trusses having chords no more than 4 inches (102 mm) wide
• Bridging or wind bracing no more than 4 inches (102 mm) wide
• Individual pipes and conduit 4 inches (102 mm) diameter or less (i.e. 3 inch (DN80) pipe size or less will not require sprigs)
• Individual groups of smaller pipe or conduit having a total width of 4 inches or less
It's not an FM project but I think I would be good to go per NFPA #13 on a 3" branch line without sprig ups?
Thanks.





RE: Sprig ups and theTyco Model ESFR-17
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: Sprig ups and theTyco Model ESFR-17
It appears this section was deleted in the 2007 edition of NFPA 13.
RE: Sprig ups and theTyco Model ESFR-17
Sprig ups, right? Makes sense because I don't think the 16.8 uprights were available in 2002 but I could be wrong.
I need to break down and by a 2010 handbook. Everywhere I work is till on 2002 but knowing this I feel better. I get nervous on large typical jobs where missing one little thing means 2,000 errors on the job.
Thanks.
RE: Sprig ups and theTyco Model ESFR-17
Travis Mack
MFP Design, LLC
www.mfpdesign.com