Is this related to a NFPA 25 inspection? I believe we researched this and found that we had to flow them all due to the overlapping requirement to operate all the valves which kicks in the requirement to run a main drain test on them to ensure they were properly re-opened during the anual test. In NFPA 25 2011 it's covered in 13.3.3 Mike Morey, SET, CFPS Sprinkler Designer BMW Constructors, Inc. O: 317.651.0596 | C: 317.586.8111 www.bmwc.com
________________________________ From: [email protected] on behalf of Greg McGahan Sent: Wed 4/11/2012 1:46 PM To: [email protected] Subject: main drain test When you have a building with multiple floor control valves I have the following question: If the intent of the main drain test is to test the supply, can you accomplish that by flowing the largest or the furtherest from the riser instead of flowing each one individually? Thanks, -- Greg McGahan Living Water Fire Protection, LLC <http://www.livingwaterfp.com <http://www.livingwaterfp.com/> > 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 fax 850-937-1852 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120411/6df53a7f/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum -------------- next part -------------- A non-text attachment was scrubbed... Name: winmail.dat Type: application/ms-tnef Size: 4460 bytes Desc: not available URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120411/12778fe3/attachment.bin> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
