Engineering selection guide: Jeltecn’s ultrasonic atomizing nozzle range uses compressed air, a fine water stream and a vibrating impingement head to form a fine, even spray. This guide explains the verified SK508, SV882 and SV980 data, how the two-stage atomization process works, and what an engineer should confirm before specifying a model.
Quick answer: when does this nozzle fit?
Start with an ultrasonic atomizing nozzle when an industrial process needs a fine spray for dust suppression, humidification or cooling and compressed air is available at the required continuous flow. Do not select on droplet size alone. Compare spray angle, no-wind distance, water flow, air demand, mounting method and the real airflow around the spray zone.
Jeltecn currently lists three verified models. SK508 produces the widest listed angle and has the lowest air demand. SV882 provides a mid-width 60° pattern. SV980 produces the narrowest listed pattern and the longest listed no-wind distance, but it also requires the highest listed air flow.
How a Jeltecn ultrasonic atomizing nozzle works
The atomization process has two stages:
- Preliminary atomization: high-speed flowing air shears a fine water stream into initial droplets.
- Fine atomization: the initial droplets mix with the high-speed air flow and impinge on the vibrating head, producing smaller, more uniform droplets.
The vibration of the impingement head and the high-speed air also help reduce dust adhesion around the spray opening. This is a compressed-air design; it should not be confused with an electrically driven piezoelectric atomizer. When comparing suppliers, confirm the mechanism and test conditions rather than comparing the word “ultrasonic” alone.
Verified SK508, SV882 and SV980 technical data
| Model | Air pressure | Water pressure | Air flow | Water flow | Tested average droplets | Approx. spray distance, no wind | Angle |
|---|---|---|---|---|---|---|---|
| SK508 | 5.0 bar | 1.0 bar | 112 L/min | 0.359 L/min 0.022 m³/h |
10.02 μm at 0.5 m test height |
≈2 m | 80° |
| SV882 | 5.0 bar | 1.0 bar | 240 L/min | 0.746 L/min 0.045 m³/h |
13.79 μm at 1.5 m test height |
≈3.5 m | 60° |
| SV980 | 3.0 bar | 0.5 bar | 307 L/min | 0.688 L/min 0.041 m³/h |
15.82 μm at 2.0 m test height |
≈4 m | 30° |
The listed droplet values are test averages measured at the stated test heights. Spray distance is approximate under no-wind conditions. These values are not a guarantee for every installation; pressure stability, liquid properties, air flow, mounting and ambient air movement can change actual performance.
How to select the model
1. Define the required coverage shape
Use angle and distance together. SK508’s 80° pattern supports wider, shorter coverage. SV882’s 60° pattern is a middle option. SV980’s 30° pattern is narrower and reaches farther in the listed no-wind test. Cross-drafts may shorten or deflect every pattern, so evaluate the nozzle at the intended mounting position.
2. Check the compressor at full load
The compressor must continuously deliver the selected model’s air flow at the operating pressure after line losses. A system that can reach the pressure with the nozzle closed may still be undersized when several nozzles run together. Multiply the per-nozzle flow by the simultaneous nozzle count, then include a practical reserve for piping losses and control response.
3. Check the water supply
Compare the required water pressure and flow with the supply at the nozzle inlet. Use stable delivery and suitable filtration. If the liquid is not clean water, provide its composition, viscosity, temperature and solids information for compatibility review.
4. Validate the process result
Use the published values to shortlist a model, then validate coverage, evaporation or dust interaction in the real process. Mounting height, ventilation, temperature and humidity can materially change the result.
Installation options and connections
The range supports two adapter styles:
- Common type: can be welded or otherwise fixed at the working point.
- Thin-wall type: passes through a thin-wall opening and is secured with a retaining cap.
The documented connections are G1/8 for the water inlet and G1/4 for the air inlet. Keep pipework supported so external load is not transferred to the nozzle. Provide access for inspection and cleaning, and orient the spray so it does not immediately strike surrounding structures. See the ultrasonic nozzle installation guide for the commissioning sequence.
Application fit and limits
Common evaluation areas include industrial dust suppression, humidification and process cooling. The nozzle is most useful where fine droplets and controlled coverage are needed and the site can provide the required compressed air. It may be a poor fit where compressed-air capacity is limited, a high liquid flow is the primary requirement, or strong cross-drafts cannot be controlled.
For processes that need separately adjustable air and liquid feeds or a different spray behavior, review the air atomizing vs. ultrasonic nozzle comparison before selecting the technology.
What to include in an RFQ
- Application and target result
- Required coverage width, distance and mounting height
- Number of nozzles operating at the same time
- Available air pressure and continuous air flow at the nozzle line
- Available water pressure and required total water use
- Liquid composition, viscosity, temperature and solids
- Ambient temperature, humidity, ventilation and cross-drafts
- Common or thin-wall mounting preference and available installation space
If an installed nozzle is weak, uneven or intermittent, follow the ultrasonic nozzle troubleshooting sequence before replacing parts.
With these inputs, Jeltecn can compare SK508, SV882 and SV980 against the actual utility limits instead of recommending from a model name alone. View the product page or send the operating conditions for a quotation.
Frequently asked questions
Which model uses the least compressed air?
SK508 has the lowest listed air flow at 112 L/min. It operates at 5.0 bar air pressure and 1.0 bar water pressure in the published data.
Which model has the longest listed spray distance?
SV980 has an approximate 4 m spray distance under no-wind conditions. Its listed spray angle is 30° and air flow is 307 L/min.
Are the droplet values guaranteed in every installation?
No. They are tested average values at specified test heights. Actual results depend on the complete operating and environmental conditions.
What are the inlet connections?
The documented water inlet is G1/8 and the air inlet is G1/4.
What materials and liquids are available?
The supplied parameter sheet does not define a universal material or liquid-compatibility range. Confirm the body material and liquid compatibility in the quotation for the specific process.
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