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Recent content by Wnaqsh

  1. Wnaqsh

    NFPA 20 - Dedication of Fire Pumps

    Thanks Guys, Actually my case is best described by (mk3223) since the contractor wants to cross the AHJ approval and use the fire pump for flushing. and the source of water is not municipal pressurized line, it's a ground tank, so a pump is required for flushing. Regards,
  2. Wnaqsh

    NFPA 20 - Dedication of Fire Pumps

    Thanks stookeyfpe / Thanks dbill74 In my case the Contractor is trying to save money by not getting special flushing pump, and he is planning to flush the FF piping network with the same fire pump. After flushing the system, the fire pump will be dedicated the FF system only, and no other...
  3. Wnaqsh

    NFPA 20 - Dedication of Fire Pumps

    Hi Guys, I went through NFPA 20 - regarding the possibility of using the fire pump for other purposes. example: Use fire pump to flush the fire system piping network, but couldn't find any reference about this subject. please advise if you have any information related to this point. Note: I...
  4. Wnaqsh

    Pump Working Pressure and Flange Rating

    the 325 psi is manufacturer design maximum working pressure ...
  5. Wnaqsh

    Pump Working Pressure and Flange Rating

    Dear Friends, I need to know the relationship between pump working pressure & flange class rating... For example (Pump working pressure 325 psi and flange drilled to PN16 .... Note: if this subject has been discussed before, please send me the link. Thanks, Waseem
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