Graco 307803J Electrostatic Air Spray Air Cap and Fluid Nozzles Owner's Manual

INSTRUCTIONS-PARTS LIST
307803
Rev. J
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
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INSTRUCTIONS
ELECTROSTATIC AIR SPRAY
Air Caps and Fluid Nozzles
FAN PATTERN FLUID NOZZLES
PRO3500t
PRO4500t
Fluid Nozzle
Part No.
PRO5500t
Fluid Nozzle
Part No.
n/a
191830
0.75 mm
(0.030 in.)
185156
191831
1.0 mm
(0.040 in.)
185157
191832
1.2 mm
(0.047 in.)
185158
191833
1.5 mm
(0.059 in.)
185159
191834
1.8 mm
(0.070 in.)
Fluid Nozzle
Orifice Size
FAN PATTERN AIR CAPS (All Models)
Air Cap
Part No.
Pattern
Shape and
Length
Recommended Fluids
& Production Rates
193033
Round End
381 to 432 mm
(15 to 17 in.)
Light to medium viscosity.
Medium to high production.
177036
Tapered End
381 to 432 mm
(15 to 17 in.)
Medium to high viscosity
and high solids.
Medium to high production.
177039
Tapered End
356 to 407 mm
(14 to 16 in.)
Medium to high viscosity.
Medium to high production.
180739
Round End
381 to 432 mm
(15 to 17 in.)
Medium to high viscosity
and high solids.
Medium to high production.
196860
Tapered End
432 to 483 mm
(17 to 19 in.)
Light to medium viscosity.
Medium to high production.
ROUND PATTERN KITS
Light to Medium Viscosity. Light to Medium Production
PRO3500t
PRO4500t
PRO5500t
Kit Part No.
NOTE: All the air cap pattern shapes and lengths were
measured under the following conditions.
Distance to Target: 305 mm (12 in.).
Atomization Air Pressure: 2.1 bar (30 psi).
Pattern
Diameter
Fan air: adjusted for maximum width.
(Manual No.)
Fluid Flow Rate: 300 cc/min. (10 oz./min.).
222329
(307935)
102 to 152 mm
(4 to 6 in.)
222330
(307935)
203 to 254 mm
(8 to 10 in.)
GRACO INC.
P.O. BOX 1441
MINNEAPOLIS, MN
ECOPYRIGHT 1986, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
55440–1441
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: 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.
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.
(14 oz./min.)
Round Pattern Production Rate
Light Production:
NOTE: Refer to the Viscosity Conversion Chart on
the back cover to convert to other units of
measurement.
Fluid flow of up to 150 cc/min.
(5 oz./min.)
Medium Production: Fluid flow of up to 200 cc/min.
(7 oz./min.)
How to Use the Fluid Nozzle Graphs
KEY
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.
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.
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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.
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, 5psi), then use the next smallest
nozzle size.
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
3.0
50
45
3.0
2.5
2.0
40
FLUID PRESSURE
FLUID PRESSURE
40
35
30
25
1.5
1.0
20
15
2.5
2.0
1.5
1.0
30
20
15
10
0.5
5
oz./min.
35
25
10
0.5
45
0
1
2
cc/min.
60
3
4
5
120
6
7
180
8
9 10
240
5
oz./min.
0
5
cc/min.
300
10
200
FLUID FLOW
ORIFICE SIZE: 1.0 mm (0.040 in.)
45
3.0
35
30
20
15
2.5
2.0
1.5
1.0
cc/min.
30
20
15
10
0.5
5
oz./min.
35
25
10
0.5
45
40
FLUID PRESSURE
FLUID PRESSURE
1.0
800
50
25
1.5
600
30
ORIFICE SIZE: 1.5 mm (0.059 in.)
40
2.0
25
Bar/PSI
50
2.5
400
20
FLUID FLOW
Bar/PSI
3.0
15
0
5
10
200
15
400
20
25
600
FLUID FLOW
Performance Graphs are continued on page 4.
30
800
5
oz./min.
cc/min.
0
5
10
200
15
400
20
25
600
30
800
FLUID FLOW
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3
Fluid Nozzle Performance Graphs
Fluid pressures are measured at the spray gun inlet.
ORIFICE SIZE: 1.8 mm (0.070 in.)
Bar/PSI
50
3.0
45
FLUID PRESSURE
40
2.5
2.0
35
30
25
1.5
1.0
20
15
10
0.5
5
oz./min.
cc/min.
0
5
10
200
15
400
FLUID FLOW
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20
600
25
30
800
Air Cap Comparison
BEST
Air Cap and Operator Cleanliness
BEST
Atomization
193033
177036
177039
180739
193033
177036
177039
180739
Air Cap Air Consumption
Transfer Efficiency
BEST
AIR CAP AIR FLOW (SCFM)
15
193033
177036
177039
180739
14
13
12
11
10
193033
177036
177039
180739
Test Conditions:
D Target Distance: 305 mm (12 in.)
D Fluid Flow Rate: 300 cc/min (10 oz/min.)
D PRO 4500 Gun with 2.8 bar (40 psi) air at the gun
inlet.
D Fan Valve adjusted for a 356 mm (14 in.) pattern
width.
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5
Notes
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Viscosity Conversion Chart
Light
Medium
Heavy
High
Solids
Poise
0.2
0.7
2.6
3.6
Zahn 1
37
Centipoise
20
70
260
360
Zahn 2
18
Du Pont Parlin 7
32
Du Pont Parlin 10
13
Fisher 1
30
Fisher 2
15
33
Sears Craftsman Cup
Ford Cup 3
12
36
Redwood No. 1 Sec.
Ford Cup 4
10
28
68
35
58
62
370
1280
1730
Measurement
Krebs Units KU
Saybolt Universal
SSU
100
Shell 2
40
Shell 3
15
Shell 4
20
Heavy
High
Solids
Zahn 3
30
41
Zahn 4
21
28
Zahn 5
13
18
286
1060
1465
30.05
105.6
149
9.4
34.65
47.75
35
124.5
171.5
Measurement
Light
Medium
23
98
Redwood No. 2 Sec.
Engler Degrees
30
2.9
Saybolt Furol Sec.
48
22
Manual Change Summary
The manual was updated per ECO Z002055.
307803
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 by an authorized Graco distributor 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 substitution 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 reconnaissent 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:
1–800–367–4023 Toll Free
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.
Sales Offices: Minneapolis, Detroit
International Offices: Belgium, Korea, Hong Kong, Japan
GRACO INC.
P.O. BOX 1441
MINNEAPOLIS, MN
55440–1441
www.graco.com
PRINTED IN U.S.A. 307803 August 1986, Revised June 2000
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307803

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