A fogging system works best when the nozzles are spaced correctly, the lines are planned well, and the system is split into zones. If you guess these parts, you may get weak fog, wet floors, or uneven cooling.
This guide explains sizing in simple steps.
1) Decide your goal
- Cooling: comfort in open/semi-open areas
- Humidity: stable moisture level
- Dust control: fog near the dust source
Your goal decides how strong the fog should be.
2) Use your nozzle spacing rule (for quick planning)
- Outdoor: place 1 nozzle every 1 meter
- Indoor: place 1 nozzle every 1.5 meters
(Spacing can change based on application, height, wind, humidity, and nozzle output.)
3) How to count nozzles (easy formula)
Nozzles = (Total pipe length ÷ spacing) + 1
Round up to the next full number.
Example (Outdoor):
Pipe length 20 m → (20 ÷ 1) + 1 = 21 nozzles
Example (Indoor):
Pipe length 20 m → (20 ÷ 1.5) + 1 = 14.3 → 15 nozzles
4) Keep pipe layout simple
- Use one main line and short branch lines
- Avoid very long lines with too many nozzles
- Add a flush point at the line end (helps cleaning)
5) Use zoning (very important)
Make 2–3 zones if:
- area is large
- one side is windy
- you need fog only at certain times
Zoning helps better control, less wetness, and even fog.
6) Final step: test and adjust
- If floor is wet: reduce fog, increase spacing slightly, aim fog across area
- If cooling is weak: check clogging, improve airflow, adjust fog timing
- If fog is uneven: split zones and shorten line lengths