As a starting point, I'd look at the listed strainer requirements of NFPA 15 (2012) Section 5.9. Many times, refineries and the like will use process water which may come directly from a river or otherwise unprocessed source. API RP 2030 recommends strainers on any system with discharge openings less than 3/8" - normally with 1/8" perforations. That looks to be 3 times smaller than the smallest orifice as a starting point. Make sure the strainer has a flush-out connection that can be used without system shutdown. Minimum is 2" per many refinery minimums. Also, it may be advisable to provide parallel strainers for continuous operation to facilitate periodic cleaning of the strainer at intervals based on water quality and strainer obstruction experience. I would also consult with the sprinkler and/or monitor nozzle manufacturer for their maximum allowable particulate sizes, particularly on the internal pipe sizing of the oscillation mechanism. Also, is your maximum anti cipated flow velocity in the piping going to affect strainer requirements? What is the condition of the piping upstream of the system in question?
Ryan Hinson Burns & McDonnell Direct: 952-656-3662 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Rod DiBona Sent: Friday, January 11, 2013 10:37 AM To: [email protected] Subject: Water filtration specifications We have a sprinkler and oscillating water monitor nozzle system that is going to be fed from tanks and pumps. The owner is going to be filling the tanks with "process water" used at this industrial mine site and has asked us to provide a specification telling him what the largest particulate acceptable would be in the water. I have searched and can't find anything that addresses this. Seems like whatever the standard for potable water is should be fine but I don't know what that is. Anyone know off the top of your head? Thanks. [Description: LOGO_10] Rod DiBona Vice President Rapid Fire Protection office : (605)348-2342 fax : (605)348-0108 cell : (605)391-3553 www.rapidfireinc.com<http://www.rapidfireinc.com> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20130111/76f252c3/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 6561 bytes Desc: image001.jpg URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20130111/76f252c3/attachment.jpg> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
