Matt,
My take and past practice is to use pendent heads as shown in figure A.8.15.4.
The idea and I believe intent for the water to spray on the Draft Stop and fall
down to the floor thus forming the “Water Curtain”. If you were to use
Sidewalls I would think they need to point at the Draft Stop to perform that
function. Chapter 8.15.4 Vertical Openings, 2010 ed.
Regards,
G. Tim Stone
G. Tim Stone Consulting, LLC
NICET Level III Engineering Technician
Fire Protection Sprinkler Design
and Consulting Services
117 Old Stage Rd. - Essex Jct., VT. 05452
CELL: (802) 373-0638 TEL: (802) 434-2968 Fax: (802) 434-4343
[email protected] <mailto:[email protected]>
From: Sprinklerforum [mailto:[email protected]] On
Behalf Of Matt Grise
Sent: Monday, June 13, 2016 12:53 PM
To: [email protected]
Subject: RE: Closely spaced heads at vertical opening
These would be mounted in the draftstop (a boxed out steel I-beam) pointed away
from the opening.
I am not clear on the intent of the design. The closely spaced sidewall
sprinklers would cover more floor space than closely spaced uprights or
pendants – but they would not throw as much water against the draft stop. Not
sure how it would compare in terms of effectiveness.
Matt Grisé PE*, LEED AP, NICET II
Sales Engineer
Alliance Fire Protection
130 w 9th Ave.
North Kansas City, MO 64116
*Licensed in KS & MO
913.888.0647 ph
913.888.0618 f
913.526.7443 cell
www. AFPsprink.com
From: Sprinklerforum [mailto:[email protected]] On
Behalf Of Michael Hill
Sent: Monday, June 13, 2016 11:37 AM
To: <[email protected]
<mailto:[email protected]> >
Subject: Re: Closely spaced heads at vertical opening
Sidewalks pointed at the draft stop?
I thought part of the reasoning was to have water hit the draft stop and create
a wall of water.
Mike Hill
Sent from my iPhone
On Jun 13, 2016, at 12:18 PM, Matt Grise <[email protected]
<mailto:[email protected]> > wrote:
I have an application where an open stairway will require closely spaced heads
and draft stopping. The construction of the opening lends itself to the use of
sidewall sprinklers set in the draftstop to serve as the closely spaced heads.
Is there anything that prohibits this? In reviewing the handbook, it only
mentions sprinklers – not a particular type, but this still seems ‘out of the
ordinary’.
Thoughts?
Thanks!
Matt Grisé PE*, LEED AP, NICET II
Sales Engineer
Alliance Fire Protection
130 w 9th Ave.
North Kansas City, MO 64116
*Licensed in KS & MO
913.888.0647 ph
913.888.0618 f
913.526.7443 cell
www. AFPsprink.com <http://AFPsprink.com>
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