Industrial spray application guide
Mist Eliminator Wash Nozzles for Gas Cleaning Systems
Spray nozzles in mist-elimination service are normally used to wash demister pads or vanes and to distribute scrubbing liquid. The separator removes entrained droplets; the nozzle supports cleaning, wetting and reliable operation.
Engineering focus
What the spray system must accomplish
The design must wet the required area without creating dry zones, excessive liquid loading or inaccessible maintenance points. Fouling, slurry solids, corrosion and the available cleaning pressure often drive the choice more than nominal spray angle alone.
Inputs required before selection
- Demister type, face area and permitted wash zones
- Cleaning liquid composition, solids content and filtration
- Available pressure, flow and wash cycle
- Material compatibility, access and drainage
- Connection, installation space and maintenance access
- Required documentation, test method and acceptance criteria
Comparison
Practical nozzle starting points
| Nozzle approach | Useful starting condition | What to verify |
|---|---|---|
| Full-cone hydraulic spray | Broad area washing where uniform distribution is the priority | Check overlap, free passage and liquid loading |
| Flat-fan spray | Targeted vane-bank or header washing | Confirm alignment and edge-to-edge coverage |
| Spiral or large-free-passage design | Solids-bearing scrubbing liquid or plugging risk | Review wear, spray distribution and access |
Review method
How to move from requirement to a defensible selection
- Define the process envelope. Record normal, minimum, maximum and upset conditions rather than one nominal point.
- Choose the spray function. State whether the job is coverage, impact, atomization, evaporation, gas–liquid contact, washing or cooling.
- Check distribution in the real geometry. Review spacing, overlap, obstructions, wall contact, drainage and access.
- Validate materials and maintenance. Consider corrosion, erosion, solids, filtration, cleaning and replacement intervals.
- Set an acceptance test. Use an observable measure such as coverage, flow, temperature profile, pressure, droplet data or process result.
Related applications
Technical references
These sources define process or system context. Product suitability still requires project-specific engineering review.
- U.S. EPA — Spray-Chamber / Spray-Tower Wet Scrubber fact sheet
- BETE — Gas scrubbing application engineering reference
Last technical review: 31 July 2026
RFQ checklist
Send the operating data, not just a nozzle name
Include the application, fluid, flow, pressure, temperature, spray distance, connection, material preference, drawings and acceptance criteria.