So, if the ESFR at the ceiling and the conveyor isn't covered, and it's only 24" wide, based on the simple obstruction rules there should be no reason to provide sprinklers below.
No reason to have to dig for any other permission to omit. Craig L. Prahl Fire Protection Group Lead/SME JACOBS - CH2M 200 Verdae Blvd. Greenville, SC 29607 Direct - 864.920.7540 Fax - 864.920.7129 CH2MHILL Extension 77540 [email protected] From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Hairfield Sent: Wednesday, January 24, 2018 4:02 PM To: [email protected] Subject: Re: Conveyors [EXTERNAL] nope ________________________________ From: Sprinklerforum <[email protected]<mailto:[email protected]>> on behalf of Prahl, Craig/GVL <[email protected]<mailto:[email protected]>> Sent: Wednesday, January 24, 2018 4:00 PM To: [email protected]<mailto:[email protected]> Subject: RE: Conveyors Is the conveyor covered? Craig L. Prahl Fire Protection Group Lead/SME JACOBS - CH2M 200 Verdae Blvd. Greenville, SC 29607 Direct - 864.920.7540 Fax - 864.920.7129 CH2MHILL Extension 77540 [email protected]<mailto:[email protected]> From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Hairfield Sent: Wednesday, January 24, 2018 3:58 PM To: [email protected]<mailto:[email protected]> Subject: Re: Conveyors [EXTERNAL] rollers are 2" dia. opening is 1 1/4" ________________________________ From: Sprinklerforum <[email protected]<mailto:[email protected]>> on behalf of Prahl, Craig/GVL <[email protected]<mailto:[email protected]>> Sent: Wednesday, January 24, 2018 3:57 PM To: [email protected]<mailto:[email protected]> Subject: RE: Conveyors What is the actual spacing between the rollers? We have at times had to provide spray beneath conveyors since that is an area where debris could accumulate and often where drive units were located. Is this conveyor covered? I'm curious since you stated it was protected by ESFR which is a bit unusual. Craig L. Prahl Fire Protection Group Lead/SME JACOBS - CH2M 200 Verdae Blvd. Greenville, SC 29607 Direct - 864.920.7540 Fax - 864.920.7129 CH2MHILL Extension 77540 [email protected]<mailto:[email protected]> From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Hairfield Sent: Wednesday, January 24, 2018 3:53 PM To: [email protected]<mailto:[email protected]> Subject: Re: Conveyors [EXTERNAL] 24" wide AHJ is looking for something in NFPA or FM Global that states that they do not require protection ________________________________ From: Sprinklerforum <[email protected]<mailto:[email protected]>> on behalf of Steve Leyton <[email protected]<mailto:[email protected]>> Sent: Wednesday, January 24, 2018 3:50 PM To: [email protected]<mailto:[email protected]> Subject: RE: Conveyors Oops - they're not 30" wide, they're 30" AFF. So how wide are they? I've worked on some giant FC projects but the conveyors weren't 48" in any case. SL From: Sprinklerforum [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Wednesday, January 24, 2018 12:49 PM To: [email protected]<mailto:[email protected]> Subject: RE: Conveyors Considering that the fire load that we want to protect is being conveyed with full exposure to sprinklers above, and it's not practical in distribution and fulfillment center operations to store combustibles under such belt systems, I can't imagine why you'd need sprinklers below a 30" conveyor even if it wasn't open. My 2ยข and nothing more, Steve L. From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Hairfield Sent: Wednesday, January 24, 2018 12:40 PM To: Sprinkler Forum Subject: Conveyors Here is my question: ESFR Systems that have some roller conveyors at 30" AFF that the the opening between rollers is over 50% do they require sprinkler protection under them? It use to be that they were not required to be protected! Thanks, Mike Hairfield
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