We have designed the sprinkler system for a warehouse with 1400 GPM at 123 psi water demand. So due to High fire pump capacity, (Regarding NFPA) Is it permissible to have a variable speed drive for the fire pump? Because if only a limited number of sprinklers are activated, the large pump will...
Hi, I think two methods are mentioned in NFPA codes to determine fire pump capacity and ground-level water tank volume in an industrial site with some sprinklered and unsprinklered buildings and some hydrants in the yard.
the first method is based on chapter 18 NFPA 1, "Minimum Required Fire...
Hi
I didn't find any regulation about automatic fire protection system design for unpackaged bulk storage such as piled grain warehouse.
Is it effective to install sprinkler system for such these warehouses?
Is there any criteria for such system design (like NFPA 13)?
Does it comply with ASME B36.1 to weld a 2.5" pipe to a 6" main pipe through making hole on the main pipe and welding the other pipe in the T form? both pipes are seamless sch 40 and water pressure is 100 psi.
In accordance to chapter 7 Of NFPA 14,the pressure limitations for class II standpipe (1 1/2 in. outlet) are between 4.5~6.9 bar and fire pump sizing shall be done to achieve minimum residual pressure on the most remote standpipe. The minimum residual pressure for class I system is 6.9 bar also...
Is That permissible To consider a flexible joint at fire pump's suction and discharge flanges in order to isolation of vibrations? such as rubber joints that placed for water booster pumps.
