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  1. wickedspins

    Location of fire riser

    Anyone know if NFPA has any requirements on where fire riser is located? This would be for a non-residential building with either wet pipe or dry pipe fire sprinkler system. I have heard co-workers mentioning that you cannot located a fire riser in a stairwell. I'm not sure if this is true or...
  2. wickedspins

    Smoke filtration

    Hi, I have a project where the building is located in a rural area. When there's a forest fire, some of the wood smoke particles get into the building through the outside air intake at the air handler. I'm not sure what air filter is being used at the air handler. Has anyone dealt with this...
  3. wickedspins

    Pipe material

    Anyone know what type of pipe material to use to transfer grease, motor oil, antifreeze, and transmission fluid within an auto repair shop? Thanks.
  4. wickedspins

    Sprinkler heads

    If I'm looking to convert an existing wet-pipe system to a dry-pipe system, I figured I need to do the following: 1) Recalculate to ensure the system has enough flow and pressure. 2) Replace fire riser with one used for a dry-pipe system. 3) Add riser mount air compressor. I'm not sure if...
  5. wickedspins

    sprinkler piping in attic

    Hi, I have a small commercial building (~4000 sf) with wood framed construction, a sloped roof, and attic insulation is at the ceiling. A wet pipe sprinkler system is being installed for the building with some upright sprinkler heads in the attic. Depending on the locations of these upright...

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