Choose a narrow-angle full cone nozzle for a smaller footprint or longer spray reach. Choose a wide-angle full cone nozzle for broader coverage at a shorter installation distance. The final decision must also match the required flow, pressure at the nozzle, target geometry, liquid condition and available clearance.
Wide Angle vs Narrow Angle Full Cone
| Selection factor | Narrow angle | Wide angle |
|---|---|---|
| Footprint at the same distance | Smaller | Larger |
| Typical installation | Longer reach or compact target | Short mounting distance or broad target |
| Spray envelope | Requires less lateral clearance | Requires more clearance around the cone |
| Header planning | May require more nozzle positions | Requires careful overlap and edge checks |
| Main verification | Reach, impact area and stable flow | Usable edge coverage and pattern stability |
Start with Target Size and Mounting Distance
The theoretical diameter of a round cone can be estimated from the spray angle and nozzle-to-target distance. This calculation is a layout starting point only. Gravity, pressure, flow, liquid properties, cross-flow and nozzle geometry can change the installed footprint.
Use the full cone spray distribution test to verify critical coverage.
When to Start with a Narrow-Angle Nozzle
- The nozzle is mounted farther from the target.
- The required footprint is compact.
- Nearby equipment limits the spray envelope.
- The process requires concentrated full-cone coverage rather than broad wetting.
Review the BBG narrow-angle full cone nozzle. Its published model table should be used for the exact angle, flow, pressure, orifice, material and connection.
When to Start with a Wide-Angle Nozzle
- The available mounting height is limited.
- A broad target must be covered from one position.
- A header must cover a large area with controlled overlap.
- The installation provides clearance for the wider spray envelope.
Review the wide-angle full cone nozzle. Confirm that the usable footprint—not only the theoretical diameter—meets the process requirement.
Does a Wide Angle Mean Fewer Nozzles?
Not always. A wider cone increases theoretical coverage, but edge distribution, header pressure balance, target shape and required uniformity can still determine the nozzle count. Verify the complete grid rather than multiplying one theoretical footprint.
Header Layout Checks
- Define the target width and length.
- Confirm mounting distance and available clearance.
- Calculate a preliminary footprint for the candidate angle.
- Select flow at the available nozzle pressure.
- Set preliminary spacing and orientation.
- Check pipe size and pressure balance.
- Test representative positions across the header.
For a rectangular grid, also compare the BB square full cone nozzle and the square full cone header design guide.
Liquid and Material Checks
Provide liquid composition, temperature, viscosity, specific gravity and suspended solids. These variables may change model selection, material compatibility, filtration and maintenance requirements.
RFQ Information
Send the application, target dimensions, mounting distance, required flow, available pressure, liquid details, connection, material, quantity and destination. Include a drawing when several nozzles will be installed in a header.
Request a narrow- or wide-angle full cone review
Related: Full cone nozzle products | Full cone selection guide
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