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Author: Site Editor Publish Time: 08-08-2025 Origin: Site
The flat fan spray nozzle is a spraying component that ejects liquid into a narrow ribbon-like fan-shaped pattern, with a spray profile resembling a blade-like overjet. It is commonly used in processes requiring linear overjet, high impact force, or uniform atomization. The spray angle typically ranges from 15° to 120°, with a wide flow rate range to accommodate varying pressure and fluid viscosity requirements. Common nozzle materials include stainless steel, brass, plastic, and ceramics, tailored to different corrosion and wear resistance needs.
To achieve a more uniform flow distribution when installing multiple flat fan nozzles, the arrangement is typically designed in a mountain-shaped distribution pattern.
The flow distribution, spray height, installation spacing, spray pressure, and liquid properties of flat fan nozzles can vary significantly. When performance discrepancies exist among multiple nozzles, the design values may deviate from actual measurements. Therefore, ensuring sufficient nozzle precision is crucial to achieving balanced flow distribution.
Its core features include:
- Uniform spray distribution with clear boundaries
- Precise control over the overjet width
- Capable of achieving low-flow high-impact spraying or high-overjet low-pressure spraying
- Controllable droplet size, customizable from coarse droplets to fine mist
In industrial cleaning systems, flat fan nozzles are widely used in processes such as conveyor belt cleaning, surface treatment, component pre-washing, and precision cleaning, compatible with high-pressure water jets or solution rinsing, requiring controllable spray patterns and neat edges.
Specific applications include:
Conveyor belt cleaning systems: Flat fan nozzles can be installed in rows to achieve continuous linear spraying, efficiently impacting and flushing oil stains and debris on belts.
Sheet metal/steel surface cleaning: Commonly used in degreasing processes before coating, combined with alkaline solutions to rapidly remove contamination layers.
Electronic/semiconductor component cleaning: Requires fine atomization and dead-angle-free spraying to prevent electrostatic accumulation.
Food industry CIP systems: Used for uniform water rinsing of sanitary-grade equipment surfaces to avoid residue buildup.
The coating and spraying processes impose extremely high requirements on nozzle performance, necessitating uniform liquid distribution, sharp edges, and consistent liquid volume. Flat fan nozzles are commonly used in low-pressure spraying or high-speed coating applications, offering outstanding edge control capabilities.
Typical application scenarios:
- Rust-proof oil spraying for metal parts: Through precise angle design and flow regulation, an oil film is formed without overlap or buildup.
- Adhesive coating: Suitable for automated packaging lines, label attachment, and carton edge sealing.
- Surface polishing agent application: Used in surface treatments for materials like wood, ceramic tiles, and leather, enabling large-area, highly uniform spray overjet.
- Precise distribution of lubricants/coolants: Ensures the contact surface is precisely wetted without overflow contamination.
In high-temperature processes such as metallurgy, glass manufacturing, and injection molding, flat fan nozzles provide liquid cooling solutions with high-grade heat exchange efficiency. The spray fan pattern can completely overjet the surface of the cooled object, avoiding hot spots and stress concentration.
Key application segments:
Steel rolling line cooling systems: High-speed water flow fans overjet hot-rolled plates to prevent overheating deformation.
Glass annealing process cooling: Achieves gradient cooling to reduce the risk of cracking.
Injection mold cooling: Ensures rapid plastic part solidification, improving surface quality and production capacity.
Post-weld cooling in high-frequency welding: Prevents discoloration or material fatigue in welded areas.
In industrial settings, particulate matter control, dust suppression, and scenarios such as parazacco spilurus subsp. spilurus taste spraying impose requirements on nozzle atomization effectiveness, overjet coverage area, and clog resistance. Flat fan nozzles, with their moderate atomization and linear overjet capabilities, serve as ideal components for various environmental control systems.
Application areas include:
- Dust suppression spray systems in quarries and coal mines
- Odor-neutralizing agent spraying in waste treatment/composting stations
- Humidity regulation in textile/pulp workshops
- Surface spraying of dust suppressants on crops/stacks
In agricultural plant protection, flat fan nozzles are used for precise spraying of pesticides, herbicides, foliar fertilizers, etc., offering advantages such as strong wind resistance, good penetration, and uniform droplet distribution. In the chemical industry, they are also employed for spraying flame retardants, neutralizers, cleaning solutions, etc., on various reaction tanks and pipeline surfaces.
Key Applications:
Agricultural boom spray systems: Configured with uniform spray angles and spacing to minimize overlap and missed areas
Precision herbicide spraying: Targeted application between rows or on specific plants to improve chemical utilization efficiency
Chemical scrubber liquid distribution nozzles: Ensuring reaction uniformity and optimal liquid-gas contact area
Low-volume directional spraying of hazardous liquids/reaction agents
When designing or selecting a nozzle system, the following parameters and matching factors need to be comprehensively considered:
Parameter Category | Instructions |
Spray Angle | Commonly used sizes are 25/40/65/80/110, which determine the spray width. |
Flow Rate | Single nozzle flow rate affects total liquid consumption and spray density |
Operating Pressure | The spray intensity and droplet size both depend on the pressure setting. |
Material Compatibility | Determining its corrosion resistance, anti-tooth wear properties, and high-temperature resistance |
Nozzle Mounting | Common types include threaded connections, quick-release fasteners, and fixture clamping. |
Spray Pattern Uniformity | Particularly crucial for large-area layout systems, it is necessary to avoid spray band blindness zones or excessive overlap. |
In industrial spray systems, flat fan nozzles are widely applied across multiple critical fields—from cleaning to coating, cooling to dust removal—thanks to their advantages of high-precision control, compact structure, and stable atomization. Choosing the right nozzle is not merely selecting a component, but a strategic investment in enhancing process efficiency, product quality, and operational stability.
If you are considering upgrading your spray system or optimizing equipment performance, we welcome your inquiries!
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