Maximum No. Of Systems from Ring Main Spur
Maximum No. Of Systems from Ring Main Spur
(OP)
Can anyone please advise me if there is a restriction on the number of Fixed Fire Protection Systems (Deluge Waterspray)that can be supplied from a spur off a Yard Ring Main.
I thought there was something in NFPA 850 but I can't find it, my concern is the number of systems that may be isolated simultaneously.
I thought there was something in NFPA 850 but I can't find it, my concern is the number of systems that may be isolated simultaneously.





RE: Maximum No. Of Systems from Ring Main Spur
We typically try to limit to 4 or 6 risers. Simply because the cost to run overhead bulk piping for any more systems will exceed the cost for an additional lead-in to the building from the underground loop.