Hi all,
Do we need to install a fire sprinkler head in a closet that is less than 24 square feet but without a closet door ? Does the closet (without s door) need to have a minimum lintel depth of 8 inches?
Ray
a 1 story building with a 2x10 wood trusses and the roof pitch is less than 4:12
Is the space between the wood trusses and the suspended ceiling an attic or concealed space? What is the difference between attic and concealed space?
So in this case, what is the maximum coverage per head in this...
Our concern is the that every time we branch off from a primary branchline to pick two or three heads in small rooms the preceding branchline will be viewed as a cross main and then would have to be seismically braced regardless of size. If I only use all 1" to 1-1/2" CPVC for a small 13R...
System demand for the dry pipe is 160.6 gpm
length of dry pipe 4" main is about 121 ft
length of the 2-1/2" branch line is about 106 ft
So how do i select the size of the air compressor?
Provide a calculation showing that the 5’-4” long branch line and drop, including the elevation gain from the
cooler ceiling to the existing branch line at .445 X 100 = 45.5gpm, is less than the staring pressure for the roof
level sprinklers at .5 X 11’-6” X 8’ = 46gpm. If the friction loss...
How do I account the pressure loss for the hose valve?
From table 8.3.1.3 NFPA 14
I figure the equivalent length should be 31+12=43 ft (hose+tee)
So where do i add this length in the hass program ?
I have a question regarding water allowance for private hydrant.
According to NFPA 13, 11.1.6.2
Water allowance for outside hose shall be added to the sprinkler requirement at the city main or a private hydrant, whichever is closer to the system riser.
Project info.
5 stories office building...
I have a project that we have to install the in-rack sprinkler for plastic group A.
The existing density for the ceiling sprinkler is 0.45 GPM/sq ft. / 3,000s.f.
Storage height is 25ft and Ceiling height is 25'-10", Non-excapsulated, single row rack,
My question is do I need a separate control...
- building height is about 17 ft
- storage height is less than 12 ft
The warehouse will be used to store/retail packaging for sunglasses. Is this belong to ordinary hazard group 2 (Mercantile? )
