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A sprinkler system in which parallel cross mains are connected by multiple branch lines, causing an operating sprinkler to receive water from both ends of its branch line while other branch lines help transfer water between cross mains.
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Related Code Sections

3.3.206.5* Definitions, Gridded Sprinkler System
A sprinkler system in which parallel cross mains are connected by multiple branch lines, causing an operating sprinkler to receive water from both ...
3.4.6* Definitions, Gridded Sprinkler System
A sprinkler system in which parallel cross mains are connected by multiple branch lines, causing an operating sprinkler to receive water from both ...
3.4.6* Definitions, Gridded Sprinkler System
A sprinkler system in which parallel cross mains are connected by multiple branch lines, causing an operating sprinkler to receive water from both ...
23.3.3* Plans and Calculations, Detailed Worksheets
to accompany gridded system calculations to indicate flow quantities and directions for lines with sprinklers operating in the remote area Combined K-factor ...
23.3.3* Plans and Calculations, Detailed Worksheets
to accompany gridded system calculations to indicate flow quantities and directions for lines with sprinklers operating in the remote area Combined K-factor ...