Graco 309419D User Manual
INSTRUCTIONS-PARTS LIST
ELECTROSTATIC AIR SPRAY
309419D
Air Caps and Fluid Nozzles
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
FAN PATTERN FLUID NOZZLES
PROt Xs Gun
Fluid Nozzle Part No.
197263 0.75 mm (0.030 in.)
197264 1.0 mm (0.042 in.)
197265 1.2 mm (0.047 in.)
197266 1.5 mm (0.055 in.)
197267 1.8 mm (0.070 in.)
197268♦ 2.0 mm (0.080 in.)
Fluid Nozzle
Orifice Size
ENG
249920* 0.75 mm (0.030 in.)
249921* 1.0 mm (0.042 in.)
249922* 1.2 mm (0.047 in.)
249923* 1.5 mm (0.055 in.)
249924* 1.8 mm (0.070 in.)
249925*♦ 2.0 mm (0.080 in.)
* Glass reinforced acetal construction.
♦ The 2.0 mm (0.080 in.) nozzles must be used with
air cap 24A439.
FAN PATTERN AIR CAPS (All Models)
Air Caps
Air Cap
Part
No.
24A438 Round End 381–432 mm (15–17 in.)
24A279 Round End 356–406 mm (14–16 in.)
24A376{ Tapered
24A274 Tapered
24A439 Tapered
24A275 Tapered
Pattern
Shape
End
End
End
End
Pattern Length
with Wide Pattern Kit*
[without Wide Pattern Kit*] Recommended Fluids & Production Rates
[330–381 mm (13–15 in.)]
[330–381 mm (13–15 in.)]
432–483 mm (17–19 in.)
[330–381 mm (13–15 in.)]
305–356 mm (12–14 in.)
[330–381 mm (13–15 in.)]
279–330 mm (11–13 in.)
[254–305 mm (10–12 in.)]
356–406 mm (14 –16 in.)
[297–348 mm (12–14 in.)]
* Wide Pattern Kit – Part No. 24A431
{ Also available in the following colors:
24A276 – blue
24A277 – red
24A278 – green
Light to medium viscosity.
Up to 600 cc/min (20 oz/min).
Medium to high viscosity.
Up to 600 cc/min (20 oz/min).
Light to medium viscosity.
Up to 600 cc/min (20 oz/min).
Light to medium viscosity.
Up to 600 cc/min (20 oz/min).
For use with 2.0 mm nozzles.
Medium to high viscosity and high solids.
Up to 600 cc/min (20 oz/min).
Light to medium viscosity and high solids.
Aerospace coatings.
Up to 750 cc/min (25 oz/min).
NOTE: All air cap pattern shapes and lengths were
measured under the following conditions:
Distance to Target: 254 mm (10 in.)
Inlet Air Pressure: 3.4 bar (34 kPa, 50 psi)
Fan air: adjusted for maximum width with manual gun.
Fluid Flow Rate: 300 cc/min. (10 oz./min.)
Pattern shape and length are material–dependent.
ROUND PATTERN KITS
Light to Medium Viscosity. Light to Medium Production.
PROt Xs Gun
Kit Part No.
(Manual No.)
245217
(309447)
245219
(309447)
277851
(313223)
2 309419
Pattern
Diameter
102 to 152 mm
(4 to 6 in.)
203 to 254 mm
(8 to 10 in.)
Adjustable
WARNING
Always turn off the power, air, and fluid supply to the gun, and trigger the gun to relieve system pressure before
installing or removing the air cap/fluid nozzle assembly. This will help reduce the risk of serious injury, including
splashing in the eyes or on the skin, or electric shock.
NOTE: Refer to your air spray gun instruction manual to install the air cap and fluid nozzle. If you do not have a
copy of the manual, copies are available at no charge from Graco Inc.
Terms
Viscosity
Light: 20 centipoise at 21_C (70_F)
Medium: 70 centipoise at 21_C (70_F)
Heavy: 160, 260 centipoise at 21_C (70_F)
High Solids: Over 360 centipoise at 21_C (70_F)
Centipoise = centistokes x fluid specific gravity.
NOTE: Refer to the Viscosity Conversion Chart on
the back cover to convert to other units of measurement.
How to Use the Fluid Nozzle Graphs
KEY
260 Centipoise Fluid
160 Centipoise Fluid
70 Centipoise Fluid
20 Centipoise Fluid
Fan Pattern Production Rate
Light Production: Fluid flow of up to 200 cc/min.
(7 oz./min.)
Medium Production: Fluid flow of up to 400 cc/min.
(14 oz./min.)
High Production: Fluid flow of up to 600 cc/min.
(20 oz./min.)
Round Pattern Production Rate
Light Production: Fluid flow of up to 150 cc/min.
(5 oz./min.)
Medium Production: Fluid flow of up to 200 cc/min.
(7 oz./min.)
2. The thick vertical line in each graph represents the
target flow rate for that nozzle size. Find the graph
that has the marked point closest to the thick
vertical line. This is the recommended nozzle size
for your application. Significantly exceeding the
target flow rate may result in lower spray performance due to excessive fluid viscosity.
Use the procedure below to select the proper fluid
nozzle for your application.
1. For each of the fluid nozzle graphs, find the point
on the graph corresponding to your desired fluid
flow rate and viscosity. Mark the point on each
graph with a pencil.
3. From the marked point, move across to the vertical
scale to find the required fluid pressure. If the
required pressure is too high, then use the next
largest nozzle size. If the fluid pressure is too low
(< 0.35 bar, 3.5 kPa, 5 psi), then use the next
smallest nozzle size.
309419 3
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