Air Caps and Fluid Nozzles
Air Cap Select
ion Chart
To reduce the risk of an injury, follow the
Pressure Relief Procedure, page 27, before
removing or installing a fluid nozzle and/or air cap.
NOTE: All air c
ap pattern shapes and lengths in the
following cha
rt were measured under the following
conditions. P
attern shape and length are material
dependent.
•
Distance to target:
10 in. (254 mm)
•
Inlet air pressure:
50 psi (34 kPa, 3.4 bar)
•
Fan air:
adjusted for maximum width
•
Fluid flow rate:
10 oz/min (300 cc/min)
Part No.
(color)
Pattern
Shape
Length
in. (mm)
Recommended
Fluid Viscosity, in
centipoise (cp) at
70°F (21°C)♦
Recommended
Production Rates
Transfer
Efficiency
Atomiza-
tion
Cleanli-
ness
24N438
(black)
Round
end
15-17
(381-
432)
Light to medium
(20–70 cp)
Up to 15 oz/min (450
cc/min)
Better Best
Good
24N279
(black)
Round
end
14-16
(356-
406)
Medium to
heavy
(70–260 c
p), and
high soli
ds (360+ cp)
Up to 15 oz/min (450
cc/min)
Better Better
Good
24N376
(black)
24N276
(blue)
24N277
(red)
24N278
(green)
Tapered
end
17-19
(432-
483)
Light to medium
(20–70 cp)
Up to 15 oz/min (450
cc/min)
Best Better Better
24N274
(black)
Tapered
end
12-14
(305-
356)
Light to medium
(20–70 cp)
Up to 15 oz/min (450
cc/min)
Good Good
Best
24N275
(black
)
Tapere
d
end
14-16
(356-
406)
Light t
omedium
(20–70
cp), and high
solids
(360+ cp),
aerosp
ace coatings
Up to 25 oz/min (750
cc/min)
Best
Good
Best
24N439
(black)
Tapered
end
11-13
(279-
330)
For use with 2.0 mm
nozzles. Medium to
heavy (70–260 cp),
and high solids (360+
cp)
Up to 20 oz/min (600
cc/min)
Good
Best Better
24N477
(black)
24W279
(green)
Round
end
15-17
(381-
432)
Light to medium
(20–70 cp)
Up to 15 oz/min (450
cc/min)
Better Best
Good
24N4
53
(bla
ck)
Roun
d
end
14-1
6
(356
-
406)
Ligh
ttomedium
(20–
70 cp)
Up to 15 oz/min (450
cc/min)
Bett
er
Bett
er
Good
♦ Centipoise = centistokes x fluid specific gravity.
70 3A2494E
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