minimum water flow required for residential fire sprinkler
minimum water flow required for residential fire sprinkler
(OP)
I have hydraulic calculations done for my fire sprinkler system, but I can't figure out what is the minimum water flow that should be provided to the whole system. Does NFPA 13D specify how to compute that? Can it be deduced from hydraulic calculations? The reason I am asking is because I am trying to figure out if I can reduce the water meter size at my home since utility charges much higher for 1.5" meter vs 1" meter.





RE: minimum water flow required for residential fire sprinkler
(Side note: If you have drawings and calculations never lose them. I would advise getting them copied to a pdf document and save them in multiple places).
That all said the flow will not change it's all about the friction loss through the underground and meter.
RE: minimum water flow required for residential fire sprinkler
RE: minimum water flow required for residential fire sprinkler
Just wanted to commend you for taking the steps for protection.
R/
Matt
RE: minimum water flow required for residential fire sprinkler
RE: minimum water flow required for residential fire sprinkler
I also talked to the fire marshall and a fire sprinkler guy and they all kept talking about running the calculations again. All I want is what is the flow requirement for my currently installed system. It almost sounds like fire sprinkler doesn't determine your minimum flow requirement for the water supply which is strange.
RE: minimum water flow required for residential fire sprinkler
However, you need to pay a competent individual to evaluate this properly. You don't want to trust some one you don't have a business relationship with to answer this over an internet forum.
Travis Mack
MFP Design, LLC
www.mfpdesign.com
"Follow" us at https://www.facebook.com/pages/MFP-Design-LLC/9221...
RE: minimum water flow required for residential fire sprinkler
I will give you my non engineer answer
The reason they say recalc because the change in meter size will change the cal so
You can't just say well my present calcs say I need this flow and pressure so if I change meter size it should work. Needs to be recalced
RE: minimum water flow required for residential fire sprinkler
Pump, tank and you are ready to go
http://www.spdinc.com/products/residential.html