does NFPA13 or 20 require the installation of two pumps 2500gpm, one electric and the other diesel plus the jockey, so 3 pumps in the same room. If yes which Ref and Numbre of NFPA .Tanks##
Neither NFPA 13 nor NFPA 20 requires installing 2 fire pumps (very tall buildings might be an exception). As long as 1 pump can provide the entire system demand, is it considered adequate.
Jockey pumps aren't required either by NFPA 13 o NFPA 20. They are installed when water supplies cannot maintain sufficient pressure to avoid a fire pump from starting automatically.
No specific requirements are indicated on NFPA 20 for your question. But you can check NFPA 20, 2016 section 4.20 that might applied with the situation you are looking for.
I would like to knowledge inform you. If your project is 24 hour electric backup, you can use two electric (duty and standby). If it is not 24hr electric backup, you must use the electric duty, diesel standby. jockey pump also use for maintenance pressure. Also can use, two diesel standby and duty pump. If you would like to know more, you can read NFPA 20. Thanks.
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