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The advantage for a pitot tube would be when you need to measure a larger volume of flow than one single 2-1/2" hydrant outlet can provide.

I'm not in IBC land, and our building code is more relaxed in defining where we can use NFPA 13R in lieu of NFPA 13. To really simplify it: -Does the building require sprinklers - yes or no if yes then go to NFPA 13 - unless - it is a residential occupancy not more than 4 storeys or a care...

I'm not sure what Module 14 is, but if it is a 4 storey building, could it not be designed to NFPA 13R? 13R allows you to calculate a compartment up to 4 sprinklers.

The listing of the head nails it down.

That's why I find the language of that sentence strange, why have it written that the maximum spacing is that of light hazard designed to discharge at 0.05gpm/sq.ft density. "7.3.3.1(3) Quick-Response spray sprinkler at light hazard spacing in accordance with NFPA 13 designed to discharge at...

I just have a question about NFPA 13R 7.3.3.1(3) If I were to use a quick-response dry pendent sprinkler in a 13R single dwelling unit garage, if the head is spaced at 225sq.ft and designed to operate at a 0.05gpm/sq.ft density a K5.6 sprinkler would only need 11.25USGPM @ 4.04psi. a K4.9...

Thanks for the input. We weren't comfortable with the original classification of OH2 for the area. EH2 it is.

Hi, We are working on a design-build project for an existing recycling facility that has a tipping area with a ceiling height of 39'-0". The existing sprinkler system in-place which is rotted out was designed as solid-pile plastics to 5'-0" max storage height (0.2GPM/sq.ft over 1950sq.ft)...