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  1. Jeng84

    Schedule 40 vs 10 for pre-action system

    thanks! very helpful! I also found Section 16.3.2 and 16.3.3, which I believe says the same thing you pointed out - If I want threaded fittings I have to use Schedule 30 (pipes 8" and larger) or Schedule 40 (smaller than 8")... But if Im not using threaded fittings I can use Schedule 10. It...
  2. Jeng84

    Schedule 40 vs 10 for pre-action system

    Need some help decoding and/or point in the right direction for steel pipe schedule for sprinkler systems per NFPA 13. I'm looking in NFPA 13 (2022 edition) and I can't find any section that talks about when/if Im allowed Schedule 10 piping? These are the 2 questions I'm trying to find answers...
  3. Jeng84

    NFPA 30 for gensets w belly tanks

    This is great, many thanks! based on these posts I think it's pretty clear how NFPA 30 and the tables for separation distance to buildings and/or property lines apply here. Shame the shell-to-shell spacing in table 22.4.2.1 is not very helpful for belly tanks
  4. Jeng84

    NFPA 30 for gensets w belly tanks

    It's a planned install in the USA, the codes followed are the 2021 I-codes.. I've checked IBC, IFC and IMC and I believe the IFC and IMC takes me to NFPA 37 but it's after that I get unsure... NFPA 37 refers to NFPA 30 for "fuel tanks outdoors (aboveground or underground) in 6.3.3.. But does...
  5. Jeng84

    NFPA 30 for gensets w belly tanks

    That's a great question, apologies for not including that in the original post! It is a UL 142 listed, secondary containment type tank i.e. double wall. It is not a protected above ground tank.
  6. Jeng84

    NFPA 30 for gensets w belly tanks

    I'm looking for insight into which NFPA standard and requirements that apply to the diesel tanks for the following scenario: 2 generators (not em or standby), outside (but has enclosures) with each diesel tank stored underneath (belly tank), tank is rectangular shape and ~5,000 gallons of...
  7. Jeng84

    Private Fire Service Main - Offline hydrants

    Does anyone know of any reference that would provide guidance on how many hydrants can be offline- for maintenance or failure event - at any given time when on a private fire service main? I have checked NFPA 24, 25, IBC and IFC but can't find anything so I assume there is no such guidance?
  8. Jeng84

    NFPA 72 fire alarm monitoring

    Only 375 SF, yes the smokes are spaced per NFPA 72
  9. Jeng84

    NFPA 72 fire alarm monitoring

    Thanks - this is very helpful! No sprinkler system - it is not needed by code (or AHJ) and because the enclosure houses electrical equipment the Owner does not want to install it. The reason I brought up NFPA 72 is because of clause 23.3.4.1 (2025 edition) for Nonrequired (voluntary) system and...
  10. Jeng84

    NFPA 72 fire alarm monitoring

    I have a campus with a protected premises fire alarm system (addressable). We're now adding a new building, it's an electrical equipment enclosure ~375SF, which would not need a fire alarm system per code (IBC 2021) however the Owner wants to install smoke detectors and manual pull station...
  11. Jeng84

    Redundant fire pumps for campus setup

    Hello there, Scenario: Industrial type campus development with multiple buildings (4-6), applicable codes are IBC and NFPA. Private fire loop is being provided, sprinklers are being fed from a fire water tank with a diesel driven fire pump. Question: Is a redundant pump required? I believe...
  12. Jeng84

    Fire pump potable water requirements

    Appreciate the response, and sorry for the confusion, let me see if I can clarify (unfortunately don't have flow diagram: It does not meet the fire flow requirements per Appendix B of the IFC, this jurisdiction requires 4,000 gpm for 4hrs. The booster pump is not required in order to meet...
  13. Jeng84

    Fire pump potable water requirements

    The following question pertains to a project in the US, i.e it is following all applicable US codes; IBC, IFC, NFPA 13, 20 etc. The project is an industrial type campus style project. It has a fire loop that feeds the sprinklers, and a dedicated fire water tank with a fire pump (tank is...
  14. Jeng84

    Domestic booster pump feeding hydrants

    The following question is for a project in the US (so IBC/IFC and NFPA applicable): It is a Campus style project. Sprinklers are fed from a fire loop, pressurized by a fire pump drawing water from a dedicated fire water tank. The domestic water system on site feeds all domestic water sources...

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