IKEUCHI USA, Inc. The Fog Engineers

Flat Spray Semi-Fine Fog Nozzles DOVVA-G series nozzles

Thread standard - Pipe conn. size Rc1/2 or Rc3/4 Standard pressure -
Spray angle 70°, 55° Spray capacity 1.0–50 ℓ/min (*1) Supply air type Compressed air
Liquid feeding system Liquid pressure Mean droplet diameter - Air consumption 50–3,000 ℓ/min, Normal (*1)
Air pressure - Free passage diameter 2.5–5.9 mm (*2)


• Flat spray pneumatic nozzle producing semi-fine atomization with a mean droplet diameter of 80 μm or more (*3).
• Clog-resistant design due to large free passage diameter is suitable for spraying factory effluents and waste water.
• Simple structure, easy maintenance.

*1) Measured at compressed air pressure of 0.1–0.4 MPa and liquid pressure of 0.1–0.5 MPa.
*2) Free passage diameter of nozzle orifice for DOVVA-G 70゚ spray angle type.
*3) Measured by Laser Doppler Method.


• Denitration: Gas cooling
• Moisture control: Flue gas
• Combustion: Waste water

Industries in which this nozzle is used

• Steelmaking
• Pollution Control

Product specifications

Structure • Comprising several parts: Nozzle body, pipe, mixing adaptor, flange, etc.
• Internal mixing type designed to mix compressed air and liquid inside the nozzle (Pre-mix type: compressed air and liquid are already mixed inside the nozzle adaptor).
• Liquid pressure type.
Material Stainless steel 316L, 304, etc. (For details, see the component list below the drawing)


Spray capacity code Nozzle thread size 1 Type of length Mass (g)
Rc1/4 A 750
B 900
C 1,100
D 1,250
Rc3/8 A 900
B 1,100
C 1,350
D 1,550
Rc1/2 A 1,350
B 1,700
C 2,000
D 2,350
Rc3/4 A 2,050
B 2,500
C 2,950
D 3,400

The mass shown is when the total length is the standard length L1 and excludes a flange.

Type of length

Type Total length L1(mm) Length L2 (mm)
A 560 300–400
B 760 400–600
C 960 600–800
D 1,160 800–1,000

・L1 shows the standard length.

Outer dimensions

No. Components Standard materials
Nozzle body S316L
Pipe S316LTP
Mixing adaptor S304
Liquid socket S304
Packing Metal wire reinforced AES wool
Flange S304
Bolt S304

In our material code, "S" represents "stainless steel". (Example) S316L represents stainless steel 316L.


Dimensions and Pipe connection sizes

Spray capacity code

Nozzle thread size 1

Pipe connection sizes
2 (Air) & 3 (Liquid)

Outer diameter φD

82 Rc1/4 Rc1/2 21
180 Rc3/8 23
300 Rc1/2 29
500 Rc3/4 Rc3/4 35

• Appearance and dimensions may differ depending on nozzle codes and materials. Please contact us for details.

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How to order

Have a question? We don’ t provide cataloge items. We can provide custom-made products to meet your requirements.

Please inquire or order for a specific nozzle using our coding system.
The coding system is described in our catalog downloadable by clicking "Catalog" button placed below.
You can also contact us for further information to find suitable products.