INSTRUCTIONS-PARTS LIST
ELECTROSTATIC AIR SPRAY
309419D
ENG
Air Caps and Fluid Nozzles
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
FAN PATTERN FLUID NOZZLES
Fluid Nozzle
Orifice Size
PROt Xs Gun
Fluid Nozzle Part No.
197263
197264
0.75 mm (0.030 in.)
1.0 mm (0.042 in.)
1.2 mm (0.047 in.)
1.5 mm (0.055 in.)
1.8 mm (0.070 in.)
2.0 mm (0.080 in.)
0.75 mm (0.030 in.)
1.0 mm (0.042 in.)
1.2 mm (0.047 in.)
1.5 mm (0.055 in.)
1.8 mm (0.070 in.)
2.0 mm (0.080 in.)
197265
197266
197267
197268♦
249920*
249921*
249922*
249923*
249924*
249925*♦
* Glass reinforced acetal construction.
♦ The 2.0 mm (0.080 in.) nozzles must be used with
air cap 24A439.
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
Fan Pattern Production Rate
Light Production:
Fluid flow of up to 200 cc/min.
(7 oz./min.)
Light: 20 centipoise at 21_C (70_F)
Medium: 70 centipoise at 21_C (70_F)
Medium Production: Fluid flow of up to 400 cc/min.
Heavy: 160, 260 centipoise at 21_C (70_F)
High Solids: Over 360 centipoise at 21_C (70_F)
(14 oz./min.)
Fluid flow of up to 600 cc/min.
(20 oz./min.)
High Production:
Round Pattern Production Rate
Centipoise = centistokes x fluid specific gravity.
Light Production:
Fluid flow of up to 150 cc/min.
(5 oz./min.)
NOTE: Refer to the Viscosity Conversion Chart on
the back cover to convert to other units of measure-
ment.
Medium Production: Fluid flow of up to 200 cc/min.
(7 oz./min.)
How to Use the Fluid Nozzle Graphs
2. The thick vertical line in each graph represents the
KEY
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 perfor-
mance due to excessive fluid viscosity.
260 Centipoise Fluid
160 Centipoise Fluid
70 Centipoise Fluid
20 Centipoise Fluid
Use the procedure below to select the proper fluid
nozzle for your application.
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.
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.
309419
3
Fluid Nozzle Performance Graphs
Fluid pressures are measured at the spray gun inlet.
ORIFICE SIZE: 0.75 mm (0.030 in.)
ORIFICE SIZE: 1.2 mm (0.047 in.)
Bar/PSI
Bar/PSI
50
50
45
40
35
30
25
20
15
10
45
40
35
30
25
20
15
10
3.0
3.0
2.5
2.0
1.5
2.5
2.0
1.5
1.0
0.5
1.0
0.5
5
5
0
1
2
3
4
5
6
7
8
9 10
0
5
10
15
20
25
30
oz./min.
oz./min.
cc/min.
cc/min.
60
120
180
240
300
200
400
600
800
FLUID FLOW
FLUID FLOW
ORIFICE SIZE: 1.0 mm (0.040 in.)
ORIFICE SIZE: 1.5 mm (0.059 in.)
Bar/PSI
Bar/PSI
50
50
45
40
35
30
25
20
15
10
45
40
35
30
25
20
15
10
3.0
3.0
2.5
2.0
1.5
2.5
2.0
1.5
1.0
0.5
1.0
0.5
5
5
0
5
10
15
20
25
30
0
5
10
15
20
25
30
oz./min.
oz./min.
cc/min.
cc/min.
200
400
600
800
200
400
600
800
FLUID FLOW
FLUID FLOW
Performance Graphs are continued on page 5.
309419
4
Fluid Nozzle Performance Graphs
Fluid pressures are measured at the spray gun inlet.
ORIFICE SIZE: 1.8 mm (0.070 in.)
ORIFICE SIZE: 2.0 mm (0.080 in.)
Bar/PSI
Bar/PSI
50
20
1.4
1.2
1.0
45
40
35
30
25
20
15
10
18
16
14
12
10
8
3.0
2.5
2.0
1.5
0.8
0.6
6
0.4
0.2
1.0
0.5
4
5
2
0
5
10
15
20
25
30
0
5
10
15
20
25
30
oz./min.
oz./min.
cc/min.
cc/min.
200
400
600
800
200
400
600
800
FLUID FLOW
FLUID FLOW
Viscosity Conversion Chart
High
High
Measurement
Light Medium Heavy Solids
Measurement
Light Medium Heavy Solids
Poise
0.2
20
32
13
30
15
12
10
0.7
70
2.6
3.6
Zahn 1
37
Centipoise
260
360
Zahn 2
18
30
Du Pont Parlin 7
Du Pont Parlin 10
Fisher 1
Zahn 3
30
21
13
41
28
18
20
Zahn 4
Zahn 5
Fisher 2
33
36
Sears Craftsman Cup
Redwood No. 1 Sec.
Redwood No. 2 Sec.
Engler Degrees
Saybolt Furol Sec.
23
286
30.05
9.4
Ford Cup 3
98
1060
105.6
34.65
124.5
1465
149
Ford Cup 4
28
68
58
Krebs Units KU
35
62
2.9
47.75
171.5
Saybolt Universal
SSU
100
370
1280
1730
35
Shell 2
Shell 3
Shell 4
40
15
48
22
309419
5
Air Cap Comparison
Air Cap
Part No.
Air Cap
Color
Pattern
Shape
Transfer
Efficiency
Atomization
Best
Cleanliness
Good
24A438
24A279
24A376*
24A276*
24A377*
24A378*
24A274
24A439
24A275
Grey
Grey
Grey
Blue
Round End
Round End
Better
Better
Best
Better
Better
Better
Better
Better
Good
Good
Tapered End
Tapered End
Tapered End
Tapered End
Tapered End
Tapered End
Tapered End
Better
Better
Better
Better
Best
Best
Red
Best
Green
Grey
Grey
Grey
Best
Good
Good
Best
Best
Better
Best
Good
* Identical except color
Air Cap Compatibility Chart
Recommended
Replacement
Part No.
197477
197478
197479
197480
197481
24A438
24A376
24A274
24A279
24A439
6
309419
Air Consumption Charts
24A438
24A279
25
20
15
10
5
25
20
15
10
5
0
0
5/16 in. x 25 ft hose
5/16 in. x 50 ft hose
20230405056067080
2023040506067080
Wall Pressure (psi)
Wall Pressure (psi)
Test Conditions
24A376, 24A276,
24A277, 24A278
24A274
D Fan valve adjusted full open
D PRO Xs4 Gun
25
25
20
15
10
5
20
15
10
5
0
0
202303404506067080
202304050560670780
Wall Pressure (psi)
Wall Pressure (psi)
24A439
24A275
25
20
15
10
5
25
20
15
10
5
0
0
202303404506067080
2030405056067080
Wall Pressure (psi)
Wall Pressure (psi)
309419
7
Graco Standard Warranty
Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the
date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco,
Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be
defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or sub-
stitution of non–Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of
Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture,
installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for
verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The
equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect
in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and
transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other
remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the
date of sale.
Graco makes no warranty, and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection
with accessories, equipment, materials or components sold but not manufactured by Graco. These items sold, but not manufactured
by Graco (such as electric motors, switches, hose, etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide
purchaser with reasonable assistance in making any claim for breach of these warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,
breach of warranty, the negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnais-
sent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires
exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procedures concernées.
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to you:
1–800–328–0211 Toll Free
612–623–6921
612–378–3505 Fax
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
This manual contains English. MM 309419
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 2001, Graco Inc. is registered to ISO 9001
Revised 12/2009
8
309419
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