Given that 2'' ball valve is installed along the branch pipe, the valve will be normally open, but the handler is to be removed. Is it acceptable under NFPA 13?
The valve is not allowed.
Why does someone want to install it???
OHHH I am not an engineer, so you can discount my reply if you want, and I cannot do math.
It is due to reduce the down time of impairment. To complete the pipework then finally connect to the valve.
Is this a general question or for a specific building??
If for a specific building, single story or multi story??
Should have asked which year of NFPA 13 you are using??
What you are proposing is not normal, except on multi story buildings, where you have a floor control valve on each floor.
A few sections that would apply:::
2016 nfpa 13
Listed indicating valve is required 126.96.36.199
Id sign is required 188.8.131.52
It is required to be supervised per 184.108.40.206.2.1
Normally most ahj’s want electronic supervision
Look at the interesting profile at this link cdafd . I have no confidence.
Click on this profile cdafd . I have no confidence. Seems foolish or stupid.
You wrote: Given that 2'' ball valve is installed along the branch pipe, the valve will be normally open, but the handler is to be removed. Is it acceptable under NFPA 13?
This question can not be answered directly from NFPA 13. I think sectional valves as necessity for your situation is acceptable. I see them on occasions when existing systems are expanded.
One important fact to remember is that NFPA 13 is an installation standard and does not specify which buildings or structures require a sprinkler system. NFPA 13 specifies how to properly design and install a sprinkler system using the proper components and materials after it has been determined that a sprinkler system is required. The administrative authority for requiring sprinklers within buildings rests with any of the following: the local building code; NFPA 5000, Building Construction and Safety Code; NFPA 101, Life Safety Code; International Building Code; or insurance regulations that typically specify which buildings and structures require sprinkler systems.
Supervision of all the control valves in requiring a type of an automatic sprinkler system rests with the local building code; NFPA 5000, Building Construction and Safety Code; NFPA 101, Life Safety Code; International Building Code; or insurance regulations that typically specify which buildings and structures require sprinkler systems. If those regulations require control valve supervision by a specific method , then NFPA 13 will elaborate with the standards on how to install the supervisory devices on the systems.
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