In Rack Sprinkler
In Rack Sprinkler
(OP)
I have a project that we have to install the in-rack sprinkler for plastic group A.
The existing density for the ceiling sprinkler is 0.45 GPM/sq ft. / 3,000s.f.
Storage height is 25ft and Ceiling height is 25'-10", Non-excapsulated, single row rack,
My question is do I need a separate control valve if there are less than 20 in-rack sprinkler? It will be really difficult to run a separated main from the existing riser, so can i just tie in the rack sprinkler to the nearest 6" main?
Existing pipe layout
https://www.dropbox.com/s/tzh2myh8hiam3bs/in%20rac...
The existing density for the ceiling sprinkler is 0.45 GPM/sq ft. / 3,000s.f.
Storage height is 25ft and Ceiling height is 25'-10", Non-excapsulated, single row rack,
My question is do I need a separate control valve if there are less than 20 in-rack sprinkler? It will be really difficult to run a separated main from the existing riser, so can i just tie in the rack sprinkler to the nearest 6" main?
Existing pipe layout
https://www.dropbox.com/s/tzh2myh8hiam3bs/in%20rac...





RE: In Rack Sprinkler
Also, your design has a fundamental problem and that is for a storage height of 25-0 feet and a ceiling height of 25 feet - 10 inches, your ceiling sprinklers will not be provided with the required 18 inches of clearance prescribed in NFPA 13.
RE: In Rack Sprinkler
Ceiling height should be 28'10
RE: In Rack Sprinkler