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  1. waterzoot

    How to choose fire pump

    Thanks a lot for your answers my friends. When NFPA speaks about maximum system demand, does it mean all systems downstream of the pump ? in my case Sprinkler (2300 gpm) + inside hoses stations (250 gpm) = 2550 gpm so If it's rignt I can choose à fire pump of 2000 gpm (2000 x 1,4)=2800 > 2550 My...
  2. waterzoot

    How to choose fire pump

    Thanks for your help Travis. Values I give are just for an example. I've only inside hose station downstream of my pump. I've choosen a rating pump of 2500 gpm because I thought that the flow of my calculation point must be under the 100% rating flow of my pump. It is not true ? I don't find...
  3. waterzoot

    How to choose fire pump

    In fact I've made a calculation and I want to size my pump. My results are 522 m3/h (8700 lpm - 2300 usgpm) at 8,10 b (117 psi) I decide to choose a pump 2500 usgpm at 125 psi. Does it correct to do that saying that sprinkler demand (2300 usgpm) + hose demand(250 gpm for ESFR system) is less...
  4. waterzoot

    How to choose fire pump

    Hi ! does somebody can help me ? I want to know in witch NFPA Code I can find how to choose a fire pump and water tank after having result of hydraulic calculation for sprinkler system and hose demand. Thanks

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