ESFR Systems with Conveyors - NFPA 13-2022 14.2.11.4 (4)

[skdesigner]

The above reference states that additional sprinklers are not required below belt conveyors up to 4ft wide, where the area below is void of storage.

In my situation I have two conveyors, each approximately 2'-9" in width running parallel with each other, with a 2'-9" gap between them.

Would I be correct in stating that because neither conveyor exceeds 4'-0 in width, no sprinklers are required beneath? Or would I have to look at their widths in aggregate because they are fairly close together (thus treating them like conduits or other 'tightly grouped' obstructions per in 14.2.11.3.4)?

Thanks in advance.

 

[TravisMack]

IMO, I would not put sprinklers below based on your criteria.

Travis Mack, SET, RME-G,
MEPCad, Inc
AutoSPRINK | AutoSPRINK FAB | AutoSPRINK RVT

 

[skdesigner]

Thanks Travis. My first time using 2022 on a job, so all of these new ESFR rules are throwing me for a loop.

 

[TravisMack]

I know. It is getting a lot different. I had a large project recently and we had a bunch of conveyors. Luckily I was going through the 2022 edition and found that section. The AHJ allowed us to use the 2022, even though 2019 was in force at the time. It had quite a cost savings associated.

Travis Mack, SET, RME-G,
MEPCad, Inc
AutoSPRINK | AutoSPRINK FAB | AutoSPRINK RVT