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NCT 35

Factory Assembled Cooling Towers (FAP)

Factory Assembled Cooling Towers (FAP), also called Package Cooling Towers, are completely manufactured, assembled, and tested at the factory before being shipped as one or several modular units to the installation site.

What Defines an FAP Cooling Tower?

  • Complete Factory Assembly: All components (structure, fill, fans, basins) are assembled at the factory.
  • Modular Shipping: Transported as whole units or in large sections (e.g., single-cell or multi-cell modules).
  • Limited Field Work: Requires only connection to piping, electrical, and placement on a foundation.
  • Standardized Design: Built to standard capacities and configurations (though some customization is possible).

Common Construction & Materials

ComponentTypical Material
Casing/StructureGalvanized steel, stainless steel, fiberglass (FRP), or thermoplastic (PVC)
Fill MediaPVC (film or splash type), sometimes polypropylene
Cold Water BasinMolded plastic (HDPE), stainless steel, or coated steel
FansAxial (FRP or aluminum), centrifugal for smaller units
Drift EliminatorsPVC cellular-style blades
Distribution SystemPVC piping with ABS nozzles (Counter Flow ) or gravity basins (Cross Flow)

Standard Configurations

1. By Airflow & Design

  • Induced Draft, Cross Flow: Most common commercial type.
  • Induced Draft, Counter Flow : More compact, higher efficiency.
  • Forced Draft: Less common, used for specific applications.
  • Round/Tubular: Single fan, compact footprint.

2. By Capacity & Modularity

TypeCapacity RangeTypical Modules
Single Cell50 – 500 tonsOne fan, one basin
Multi-Cell200 – 2,000+ tonsMultiple cells sharing common basin
Mini/Packaged5 – 100 tonsSmall rooftop or ground units