Just throwing this out there, how many designers add a note to the drawings 
indicating the signage required at the fire department connection indicating 
the pressure required to deliver the standpipe system demand as per NFPA #14 
section 6.4.5.2.2 (2016ed).

On a second note we have a building that is sprinklered and has a standpipe and 
as such the standpipe demand when calculated is 63psi @ 500gpm at the top most 
outlets, so the pressure required to deliver this is 112psi at the inlet of the 
Siamese connection, this was what we put on the sign. I have been advised that 
this is wrong and the pressure would be 149psi at the inlet as this would then 
deliver 100psi at the hose valve.

Comments?

Thank You

James Crawford
Phaser Fire Protection Ltd.
Phone 604-888-0318
Cel: 604-790-0938
Email [email protected]<mailto:[email protected]>
Web: www.phaserfire.ca<http://www.phaserfire.ca>

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