[Sprinklerforum] NFPA-13 (2022 ed) Section 20.4.13.4 ~ Mixed Commodity Segregation

Can I apply the above Section to the following scenario: I have an area which requires .60 over 2,000 sq. ft.. In the area requiring .60, there are only 11 heads in the room and I am calcing 7 heads on the grid line (1 grid line supply the room) at 115 sq. ft. per head. In order to calc 2,000 s

[Sprinklerforum] HYDRAULICALLY CALCULATING MIXED DENSITIES

I have an area which requires .60 over 2,000 sq. ft.. In the area requiring .60, there are only 11 heads in the room and I am calcing 7 heads on the grid line (1 grid line supply the room) at 115 sq. ft. per head. In order to calc 2,000 sq. ft. I am having to extend my calc into an area which re

[Sprinklerforum] Re: F892 K11.4 Upright Sprinkler

Daniel, I tried to investigate this a little bit but didn't find any solid answers. I believe the pintle on the deflector signifies that the sprinkler’s K-factor is not standard for the thread size. Is that a ½” NPT head? The 11.4 may be the exact k-factor while the data sheet lists the 11.2K n

[Sprinklerforum] Re: Phase Converter

“assuming there’s a 460/3 ph in the pump room.” Steve L. That is what I am wondering. If they have the wrong step-down in there and are looking for alternate ways to save $%$$. R/ Matt Please rate our customer service