| I. Fundamental Design |
| Draft Principle |
Induced Draft (Fan located at the top) |
Pulls air through, preventing re-circulation; fan operates in saturated air. |
| Flow Principle |
Cross Flow (Air moves horizontally across water) |
Allows for lower pump head (gravity distribution) and ease of access to fill. |
| Structure Material |
FRP Pultruded Sections (or heavy-duty molded FRP) |
100% Corrosion Resistance; High strength-to-weight ratio. |
| Certification |
Thermal Performance |
Often CTI-certified (Cooling Technology Institute STD-201) |
| II. Thermal & Hydraulic |
| Water Distribution |
Hot Water Basin |
Gravity Flow Distribution Basin located above the fill |
| Nozzles Type |
Large orifice, metering orifice-type polypropylene (PP) or target nozzles |
Provides uniform water dispersion without clogging. |
| Fill Media Type / Material |
High-efficiency PVC Film Fill (Honeycomb/Cross-fluted) |
Maximizes heat transfer surface area. |
| Drift Loss Guarantee |
Ultra-low, typically $\le 0.005\%$ of circulating water flow |
Minimized water loss for environmental compliance. |
| III. Mechanical Equipment |
| Fan Type Technology |
Axial Flow (Aerodynamically designed) |
High efficiency with low noise levels. |
| Motor Specification |
TEFC (Totally Enclosed Fan Cooled), IP55+ protection, High Efficiency (IE3/IE4) |
Designed for heavy-duty industrial outdoor use. |
| Drive System Transmission |
Right-Angle Gear Drive (Oil-lubricated) or Direct Drive (Smaller units) |
Ensures stable torque transmission and durability. |
| Drive Shaft Connection |
Carbon Composite or SS Shaft with flexible couplings |
Lightweight and prevents vibration issues. |
| Hardware Fasteners |
Stainless Steel (SS 304 / SS 316) |
Prevents rust in high-moisture environments. |