Spillback nozzles(with variable flow) SPB series nozzles

Pipe conn. size Rc1/2 Spray angle 60゚, 85゚, 95゚, 100゚, 105゚, 120゚, 125゚, 127゚, or 130゚ Mean droplet diameter 99–237 μm
Strainer Not included Standard pressure 2.0 MPa Spray capacity 2.00–20.0 ℓ/min
Air consumption - Free passage diameter 1.3–3.0 mm


• Variable capacity hollow cone spray nozzle generating fine atomization with uniform spray distribution.
• The turn-down ratio of spray capacity is 1:10.
• The variation in spray droplet sizes is minimized.
• SPB series nozzles are suitable for gas cooling where the flow rate or gas temperature varies.


• Cooling: Incinerators (flue gas desulfurization), cement factories, glass factories, blast furnaces, iron works, blast furnaces (dry dust catcher)
• Moisture control: Blast furnaces (water spraying to hot blast stove)

Industries in which this nozzle is used

• Pollution control

Product specifications

Structure • Spray capacity can be controlled by opening/closing the return flow valve while supply pressure is kept constant.
Material • Nozzle orifice: Tungsten carbide
• Protection pipe: Stainless steel 316
• Optional material: Stainless steel 316L, Stainless steel 304, Stainless steel 440C
Type Mass(kg)
A 3.0
B 3.4
C 4.1
D 4.8
E 5.5

*The mass does not include flange.

Outer dimensions

SPB series

Type Total length L1 (mm) Length L2 (mm)
A 480 200–300
B 580 300–400
C 780 400–600
D 980 600–800
E 1,180 800–1,000

• Appearance and dimensions may differ depending on materials and nozzle codes. Inquire with us for details.

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