Water Mist Servey
  • Nozzle #

  • Distance from nozzle to overhead (MAX 12 inches from overhead)

  • Is Nozzle in Pendant Position

  • Is perimeter nozzle within 2' to 5' spacing to bulkhead (Y/N/NA)

  • Is Nozzle spacing to adjacent nozzles within 4' to 10' (Y/N)

  • Is nozzle spraying directly into electrical equipment. (Desired answer is NO)

Vertical Flow – 40 DEG from horizontal and “area” below

  • Is Obstruction greater than 3' from vertical orifice (Desired answer is YES)

  • Are there any Major obstructions that are = to or > than 10 Ft^2 in a projected area (desired answer is NO) If yes, see next column

  • Is obstruction greater than 4' in any dimension (desired answer is NO)

Horizontal Flow - Between 20 DEG and 40 DEG from horizontal

  • For Non-hazard areas are 2 or more orifices blocked (Y/N/# of Orifices blocked)

  • For hazard areas are any orifices blocked (Y/N/# of Orifices blocked)

  • For hazard area, Can 2 or more blocked orifices be improved (Y/N)

  • Is obstruction greater than 2' from nozzle (Desired answer is YES)

  • Are there any major obstructions that are = to or > 10 Ft^2 in projected area (Desired answer is NO) ( If yes , see next column)

  • Is obstruction greater than 4' in any direction. (Desired answer is NO)

  • Is the nozzle going to be moved

  • Vertical Flow obstruction

  • Horizontal Flow obstruction

  • Notes for any moves

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