Hi i'm designing Extended Coverage sprinkler for warehouse that stored palletized of exposed non-expanded plastic.
Ceiling Height 7.0 m.
Storage Height 3.6 m.
Per NFPA 13 Chapter 24 i did't see using of K25.2EC criteria for exposed non-expanded plastic but FM Data Sheet 8-9 Table 5. said i can...
I'm designing warehouse the stored rubber on rack (Open portable tire rack).
Building Height = 12 meters , Rack Height = 10 meters Only ceiling sprinkler isn't enough.
Can i use chapter 25.8.2 NFPA 13 to protect the rubber. if chepter 25.8.2 will not work please tell me another choice.
Thank You.
I'm designing automatic sprinkler system for roll paper.
NFPA 13(2019) said i will have 250 gpm 2 hours but NPFA 13 (2016Edition) said i will have 250 gpm 1 hour.
Which one is correct.
Thank You.
Hi , i'm just curious the reason to have alarm check valve in the system. I heard someone say " to reducing corrosion ,to avoid unwanted alarms " .
Dose anybody have other reason to install alarm check valve ?
Thank you for helping.
I'm curious how's different between standard sprinkler that without glass bulb and medium velocity spray nozzle.
Can i use standard sprinkler that wihtout glass bulb instead medium velocity spray nozzle?
Thank you for helping me.
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...
