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NCT 93

Double Cross flow vs. Other Types

FeatureDouble Cross flowSingle Cross flowInduced Draft Counter flow
Air InletsTwo opposite sidesOne sideAll around the bottom perimeter
Plan Area (Footprint)Wider for same capacityWider (one-sided)More compact
Pump Head RequiredLow (gravity basin)LowHigher (pressurized nozzles)
Fill AccessibilityExcellent (from central plenum)Excellent (from open side)Poor (requires fill removal)
Freeze RiskHigh (two exposed sides)HighLower (water enclosed in pipes)
Common UseMedium to large industrialSmaller units, space-constrained sitesVery common, all-around use

Typical Applications

  • Large Industrial Processes: Where high capacity is needed and a wider, lower-profile structure is acceptable (e.g., chemical plants, manufacturing facilities).
  • HVAC for Large Buildings/Campuses: Where space allows for a wider footprint.
  • Power Plant Auxiliary Cooling.
  • Situations where low pump head is a key design criterion.
  • Applications with water containing moderate suspended solids where easy maintenance access is valued.