Plastic evaporative cooling pads are widely used in evaporative cooling systems (e.g. cooling towers, air coolers and greenhouses, farms) to reduce air temperature by water evaporation. They are usually made of PP because of their durability, corrosion resistance and efficient cooling capacity.
- 1. Main Features
Material: PP (corrosion resistant, UV stabilized, suitable for outdoor use).
Honeycomb structure: maximizes surface area for optimal water-air contact.
High efficiency: cools air by 5-15°C depending on humidity and airflow.
Low pressure drop: minimal resistance to airflow, reducing energy consumption.
Long service life: resistant to algae, chemicals and weathering (typically 5-10 years).
- 2. Working principle
Water circulation: pump distributes water to the surface of the pad.
Airflow: hot/dry air passes through the wet pad.
Evaporation: water absorbs heat from the air, cooling it.
Cold air output: cooled, humidified air is delivered to the target space.
- 3. Better than traditional materials
Feature |
Plastic Pads |
Wood/Cellulose Pads |
Durability |
Resists rot, mold, and chemicals |
Prone to decay and algae |
Maintenance |
Easy to clean, reusable |
Requires frequent replacement |
Efficiency |
Consistent performance over time |
Efficiency drops when clogged |
Cost |
Higher upfront cost but longer lifespan |
Lower cost but shorter lifespan |