I am working on a project with an ESFR system and we have some ductwork
installed below it. The duct system is T shaped with 24” wide section 50 ft
long and 30” wide section 12’-6” long protruding from the center of the 24”.
The top of the duct is 3’-8” below the sprinkler deflector
You will have to put ESFR sprinklers under the 30" wide duct as it is over 24"
wide. As for the 24" wide duct, the ESFR sprinkler heads need to be at least
2'-0" horizontally from the edge of the duct. If the 24" duct is unable to be
moved, then you will either have to put heads under it as well
Is the duct insulated? If so, make sure and add the insulation to the
duct width
Trevor Spain
Igneus Incorporated
On 12/9/2021 1:35 PM, Fpdcdesign via Sprinklerforum wrote:
I am working on a project with an ESFR system and we have some ductwork
installed below it. The duct sys
