Using Extended Coverage Sprinkler in Protection of High Plied Storage 2

[Sittipon99]

I'm designing automatic sprinkler system for Chloroprene rubber (commodity class 4).
Ceiling height : 4.4 m.
Top of Storage : 3 m. (Palletized)
Pallet Material : Unreinforced Polypropylene
Comodity Class : Class 4 -----> Unexpanded Group A Plastic
Density : 0.2gpm/sq.ft @ 2500 sq.ft (Table21.33(a))
For above information , May i use extended coverage sprinkler K11.2EC , And spacing them 4.3x4.3 m. ?
Thank you for helping me.

 

[TravisMack]

I don't believe any of the 11.2k are listed for use in storage. They are light / ordinary hazard only. You would have to go to the k25 ex cov sprinklers. They give 14'x14' max spacing.


Travis Mack, SET, CWBSP, RME-G, CFPS
MFP Design, a Ferguson Enterprise

http://www.mfpdesign.com

 

[Sittipon99]

Thank you for your response. I just still wonder ,In the NFPA13 chapter 21 said that i can use K8.0 for density 0.2 gpm/sq.ft to 0.34 gpm/sq.ft and spacing them 4x3 m.(12 sq.m)(Table 10.2.4.2.1(d))
Is that correct?

 

[UFT12]

Table 10.2.4.2.1(d) still applies

 

[Sittipon99]

Thank you for your help UFT12.