NFPA 13 2016 Edition 7.7.6 Strainers. A listed strainer shall be provided in the riser or feed main that supplies sprinklers having nominal K-factors smaller than K-2.8 (40).
On Mon, Feb 3, 2020 at 1:40 PM Steve Leyton via Sprinklerforum < [email protected]> wrote: > More specifically, backflows are not fire protection devices, which is why > they are not prescribed by the sprinkler standard. The local health and > water departments are the enforcing agencies with regard to backflow > prevention and cross-connection control, and generally speaking a backflow > appliance is only required to be installed on a private connection to the > public water system that will supply a non-potable demand. So in 99+% of > scenarios, the installation of a strainer would be governed by the serving > water agency since it occurs on the public side (and often in the public > right-of-way) of the backflow appliance. Questions you have about such > equipment should be directed to the cross-connection control department of > the water purveyor. > > > > Steve Leyton > > > > > > *From:* Sprinklerforum [mailto: > [email protected]] *On Behalf Of *Matthew J > Willis via Sprinklerforum > *Sent:* Monday, February 03, 2020 11:36 AM > *To:* [email protected] > *Cc:* Matthew J Willis > *Subject:* RE: Strainers On the Backflow > > > > Backflows, technically, are really not part of 13. > > > > They are included in-so-far as municipalities dictate them. > > > > Therefore, the data sheet is the only real refuge for the info. > > > > As per yours below, do not use a strainer on our systems. > > > > R/ > > Matt > > > > *From:* Sprinklerforum <[email protected]> *On > Behalf Of *Michael Goodis via Sprinklerforum > *Sent:* Monday, February 3, 2020 12:06 PM > *To:* [email protected] > *Cc:* Michael Goodis <[email protected]> > *Subject:* Strainers On the Backflow > > > > Guys, > > > > I am looking and cant seem to find any info on strainers that are > installed on a fire protection line in front of the fire backflow. I found > on the backflow submittal where it states it, but is it in NFPA 13 and > possibly UFC 03-600-01? > > > > > > Thanks, > > > > *Michael Goodis * > > *Salesman, Project Manager* > > *IL#000635 NICET#135586* > > *Key Fire Protection Enterprises LLC* > > *3200 Mike Padgett HWY* > > *Augusta, GA 30906* > > *Office- (706) 790-3473* > > *Cell- (706) 220-8822* > > *Fax: (706) 738-2119* > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org >
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