Fan Stack
Innovek · Cooling tower parts
The cylinder that guides air out of your cooling tower
Innovek fan stacks are made from layered laminated polyester with a double-coat design. The inside is smooth so air leaves quickly, and the outside is tough enough for the weather and the daily work of a cooling tower.
- Smooth inner surface for fast air removal
- Strong outer surface that resists weather and tower operation
- Classic cylindrical shape for lower noise and vibration
What it does
A simple part that helps the whole tower
The fan stack sits around the fan and shapes how the air leaves the tower.
Guides the air out
The fan stack is the cylinder around the fan. It directs the air upward and out of the tower, so the fan moves air through the fill instead of letting it escape sideways.
Lets air leave quickly
The inner surface is smooth, so air passes through the stack with little resistance.
Keeps the tower calmer
The classic cylindrical shape helps lower the noise and vibration, not only of the fan itself but of the whole cooling tower.
How it is built
Strong outside, smooth inside
Layered laminated polyester
The stack is made from several layers of polyester laminated together, which gives a strong, light and rust-free structure.
A double-coat design
The inside has a smooth finish for fast air removal. The outside is built for strength and for resistance to the weather and the conditions of a working cooling tower.
In the field
Fan stacks on Innovek cooling towers
Fit with your fan
Stack and fan work as a pair
The small gap between the blade tips and the stack matters for fan performance. Some fans can be adjusted to match the stack: the Cofimco G series and 50F fans have a 2 inch diameter adjustment that lets you reduce the tip clearance, or make up for a stack that is slightly out of round.
Keep the whole drive line matched
- Fan blades chosen for your stack diameter
- A gearbox sized for the fan load
- A drive shaft that carries the power smoothly
Need a new fan stack?
Tell us your fan size and tower type and our engineers will recommend the right stack.