Which NFPA Standards guides for Pressure Rating of piping components viz. OS&Y Valves, Strainers, NRV, Piping.
- For a Fire Pump Station, Fire Pumps selected is of 1000 GPM at 12 Bar pressure to achieve 6-7 bar pressure at the remotest hydrant.
- Can anybody tells me if I can use 175 psi...
Trashcanman is correct!
Fire Protection Hydrant System shall be designed based on the residual pressure at the extreme end of the hydrant network.
Assume a case: If the pumping system has been designed to maintain (say) 6 bar pressure with (say) 100 GPM flow when four consecutive hydrants in...
Useful replies undoubtedly!
I would like to add the following....
- Selection of the pump shall be based on the design requirements of the system. Selection should be backed by hydraulic analysis of the system. Like how much flow at what pressure requires to be maintained at the extreme end of...
One Could check UL site for listed Pumps and other components for fire protection system. Check this out to find the listed components:
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm
As per NFPA 20, the strainer shall be installed in the fire pump suction line where removal of the driver is required to remove rocks or debris from the pump impeller. Strainer shall be designed to restrict the passage of 7.9 mm sphere or as recomended by pump manufacturer.
sharique
