Fine Droplets: Small droplet size increases surface area, improving heat exchange and absorption efficiency
High Capacity: Delivers high flow rates while maintaining fine atomization
Circular Distribution: Hollow cone pattern provides wide coverage
Clog-Resistant Design: Simple whirlchamber structure with smooth flow channels
Multiple Material Options: Stainless steel, brass, PP, PVDF, silicon carbide, and more
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Hollow Cone (Spiral-Type) Nozzle
Product Overview
The hollow cone (spiral-type) nozzle is an industrial spray nozzle that produces a hollow cone spray pattern through a spiral structure. Liquid is discharged under pressure through the voids in the spiral, creating a circular spray pattern. Droplets are slightly coarser than those from other hollow cone nozzles, but the flow rate is extremely high. The compact one-piece design delivers maximum throughput for a given pipe size while providing excellent clog resistance.
How It Works
Liquid enters the nozzle and flows along the spiral channels, exiting through the voids in the spiral. The spiral structure imparts rotational motion to the liquid, and centrifugal force creates a hollow cone spray pattern. With no small internal passages or whirlchambers, droplets are relatively coarser, but the flow path is very smooth and resistant to clogging.
Key Advantages
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High Flow Capacity: One-piece spiral design delivers extremely high flow rates in a compact size
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Excellent Clog Resistance: No small internal passages, ideal for liquids containing particulate matter
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One-Piece Construction: No moving parts, rugged and durable, low maintenance
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Wide Spray Angle Range: 50° – 180° for broad coverage
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Multiple Material Options: Stainless steel, brass, PP, PVDF, silicon carbide, PTFE, and more
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Slightly Coarser Droplets: Reduces drift, suitable for open-space applications
Typical Applications
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Dust Suppression: High flow coverage effectively controls dust
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Fire Protection: High-flow water mist for rapid cooling and fire suppression
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Flue Gas Desulfurization (FGD): Corrosion-resistant materials, high-flow spraying
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Gas Cooling: High-flow atomization for rapid heat exchange
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Chemical Spraying: Scrubber towers, reactor spraying
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Wastewater Treatment: Aeration, defoaming
Technical Specifications
Parameter
Typical Range
Spray Pattern
Hollow cone (circular ring)
Spray Angle
50° – 180°
Flow Rate
5 – 500+ L/min (at 3 bar)
Operating Pressure
0.5 – 10 bar
Droplet Size
Medium to coarse (pressure-dependent)
Connection Size
1/4″ – 2″ NPT / BSPT
Available Materials
303/316 stainless steel, brass, PP, PVDF, silicon carbide, PTFE, Hastelloy
| Parameter | Typical Range |
|---|---|
| Spray Pattern | Hollow cone (circular ring) |
| Spray Angle | 50° – 180° |
| Flow Rate | 5 – 500+ L/min (at 3 bar) |
| Operating Pressure | 0.5 – 10 bar |
| Droplet Size | Medium to coarse (pressure-dependent) |
| Connection Size | 1/4″ – 2″ NPT / BSPT |
| Available Materials | 303/316 stainless steel, brass, PP, PVDF, silicon carbide, PTFE, Hastelloy |
Selection Guide
Application
Recommended Material
Recommended Angle
Notes
Dust suppression
PP / 316 stainless steel
90°–150°
Wide coverage, high flow
Fire protection
Brass / stainless steel
120°–180°
Large area coverage
Flue gas desulfurization (FGD)
Silicon carbide / Hastelloy
90°–120°
Corrosion and wear resistant
Gas cooling
316 stainless steel
60°–120°
High flow, rapid heat exchange
Chemical spraying
PTFE / PVDF
90°–150°
Chemical corrosion resistant
Wastewater treatment
PP / 316 stainless steel
120°–180°
Clog-resistant, high flow
| Application | Recommended Material | Recommended Angle | Notes |
|---|---|---|---|
| Dust suppression | PP / 316 stainless steel | 90°–150° | Wide coverage, high flow |
| Fire protection | Brass / stainless steel | 120°–180° | Large area coverage |
| Flue gas desulfurization (FGD) | Silicon carbide / Hastelloy | 90°–120° | Corrosion and wear resistant |
| Gas cooling | 316 stainless steel | 60°–120° | High flow, rapid heat exchange |
| Chemical spraying | PTFE / PVDF | 90°–150° | Chemical corrosion resistant |
| Wastewater treatment | PP / 316 stainless steel | 120°–180° | Clog-resistant, high flow |
Comparison with Other Hollow Cone Nozzles
Nozzle Type
Droplet Size
Flow Capacity
Clog Resistance
Typical Applications
Spiral-Type
Medium to coarse
Very High
★★★★★ Best
Dust suppression, fire protection, FGD
Whirlchamber-Type
Fine
High
★★★ Good
Cooling, d
| Nozzle Type | Droplet Size | Flow Capacity | Clog Resistance | Typical Applications |
|---|---|---|---|---|
| Spiral-Type | Medium to coarse | Very High | ★★★★★ Best | Dust suppression, fire protection, FGD |
| Whirlchamber-Type | Fine | High | ★★★ Good | Cooling, d |
