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  1. 6877263

    vertical turbine pumps and underground tanks

    I have a question about Vertical turbnie pumps. In chapter 7 of NFPA 20 there is a requirement of minimum submergence from the second bowl to the surface of the water. There are only two options in the NFA 20: 1. A well- In this case the subergance must be at least 10 ft below the pumping...
  2. 6877263

    supply mode calculations for NFPA13

    Hello all, I'm reviewing plans for a sprinkler system that is designed for OH-2. The water supply for the sprinkler system is a diesel engine pump (1500 GPM @ 100 PSI), that is supplied from a water tank with the capacity of a 20,000 gallons. The hydraulic calculations were executed in the...

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