Zero Contamination
Sealed coil keeps process fluid completely isolated from air and spray water.
CLOSED CIRCUIT COOLING TOWER
› Fully sealed coil — process fluid never contacts air
› SS 304 / SS 316 casing with HDG structural frame
› Counter-flow evaporative cooling design
› Energy-efficient axial fans — low noise ≤ 65 dB(A)
› Anti-clog spray nozzles + PVC drift eliminators
› VFD option for fan & pump energy saving
› Capacity: 5 TR to 500 TR per unit
Key Features & Highlights
• Closed circuit design — process fluid never contacts ambient air or water
• Capacity range: 5 TR to 500 TR (single unit); multiple units for higher capacity
• SS 304 / SS 316 casing — corrosion resistant, suitable for coastal and chemical environments
• Hot-dip galvanized (HDG) structural frame for long service life
• Counter-flow / cross-flow configurations available
• Energy-efficient axial fans with low noise operation
• Built-in water distribution system with anti-clog spray nozzles
• Drift eliminators to minimize water carryover (< 0.001%)
• Suitable for process fluid temperatures up to 70°C inlet
• Optional VFD (Variable Frequency Drive) for fan speed control and energy saving
• Compact modular design for easy transportation and installation
• ASME / IS standard coil design for high-pressure duty
• Capacity range: 5 TR to 500 TR (single unit); multiple units for higher capacity
• SS 304 / SS 316 casing — corrosion resistant, suitable for coastal and chemical environments
• Hot-dip galvanized (HDG) structural frame for long service life
• Counter-flow / cross-flow configurations available
• Energy-efficient axial fans with low noise operation
• Built-in water distribution system with anti-clog spray nozzles
• Drift eliminators to minimize water carryover (< 0.001%)
• Suitable for process fluid temperatures up to 70°C inlet
• Optional VFD (Variable Frequency Drive) for fan speed control and energy saving
• Compact modular design for easy transportation and installation
• ASME / IS standard coil design for high-pressure duty
WHY CLOSED CIRCUIT?
Colt CCCT vs Open Cooling Tower
Minimal Maintenance
No scaling inside the process circuit. Only spray water requires treatment.
Lower Operating Cost
Reduces chemical usage, water treatment and blowdown expenses.
Legionella Safe
Closed process side greatly minimizes bacterial growth risks.
Glycol Compatible
Suitable for sub-zero temperatures using anti-freeze on the coil side.
Consistent Cooling
Stable cooling performance throughout the year with minimal fouling.
| Parameter | Colt CCCT | Open Tower |
|---|---|---|
| Fluid Contamination | Zero — fully sealed | High fouling risk |
| Scaling in Circuit | None | Frequent scale buildup |
| Water Treatment Cost | Low (spray side only) | High (full circuit) |
| Blowdown Required | Minimal | High |
| Legionella Risk | Very Low | Higher |
| Maintenance Frequency | Low | Frequent cleaning |
| Cold Climate Use | Yes — glycol in coil | Limited |
| Process Fluid Purity | Maintained throughout | Degrades over time |