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How to Calc. Standpipes to find residual pressures?

Question asked by e.mchugh on Aug 7, 2019
Latest reply on Aug 8, 2019 by e.mchugh

Regarding hydraulic calculations for Combination Standpipe & FHV Standpipe.

I am designing a core & shell system for a high rise building, in order to find the residual pressure on each floor, what is the correct process?

Each floor will require dual PRVs 2-1/2" that feed into a 4" manifold that supplies the floor riser. Dual PRVs are required due to GPM demand of the sprinkler system.


I have attached my risers details.