Graco 307803F ELECTROSTATIC AIR SPRAY Air Caps and Fluid Nozzles Owner's Manual

INSTRUCTIONS-PARTS LIST
307–803
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
Rev. F
Supersedes E
INSTRUCTIONS
ELECTROSTATIC AIR SPRAY
Air Caps and Fluid Nozzles
FAN PATTERN FLUID NOZZLES
PRO3500
PRO4500
PRO5500
Fluid Nozzle
Part No.
191–830
FAN PATTERN AIR CAPS (All Models)
Air Cap
Part No.
Recommended Fluids
& Production Rates
Fluid Nozzle
Orifice Size
Pattern
Shape and
Length
177–033
Light to medium viscosity.
Medium to high production.
0.75 mm
(0.030 in.)
Round End
381 to 432 mm
(15 to 17 in.)
177–036
Tapered End
381 to 432 mm
(15 to 17 in.)
Medium to high viscosity
and high solids.
Medium to high production.
177–039
Tapered End
356 to 407 mm
(14 to 16 in.)
Medium to high viscosity.
Medium to high production.
180–739
Round End
381 to 432 mm
(15 to 17 in.)
Medium to high viscosity
and high solids.
Medium to high production.
191–831
1.0 mm
(0.040 in.)
191–832
1.2 mm
(0.047 in.)
191–833
1.5 mm
(0.059 in.)
191–834
1.8 mm
(0.070 in.)
ROUND PATTERN KITS
Light to Medium Viscosity. Light to Medium Production
PRO3500
PRO4500
PRO5500
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.).
Pattern
Diameter
(Manual No.)
Atomization Air Pressure: 2.1 bar (30 psi).
Fan air: adjusted for maximum width.
Fluid Flow Rate: 300 cc/min. (10 oz./min.).
222–329
(307–935)
102 to 152 mm
(4 to 6 in.)
222–330
(307–935)
203 to 254 mm
(8 to 10 in.)
GRACO INC.
P.O. BOX 1441 MINNEAPOLIS, MN
COPYRIGHT 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 21C (70F)
Medium: 70 centipoise at 21C (70F)
Heavy: 160, 260 centipoise at 21C (70F)
High Solids: Over 360 centipoise at 21C (70F)
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.
2 307–803
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.)
Bar/PSI
50
50
45
3.0
3.0
35
30
2.0
25
1.5
20
15
1.0
2.5
2.0
5
oz./min.
35
30
25
1.5
1.0
10
0.5
45
40
FLUID PRESSURE
FLUID PRESSURE
40
2.5
ORIFICE SIZE: 1.2 mm (0.047 in.)
Bar/PSI
20
15
10
0.5
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
45
3.0
35
30
25
1.5
1.0
20
15
2.5
2.0
5
oz./min.
cc/min.
45
35
30
25
1.5
1.0
20
15
10
10
0.5
800
40
FLUID PRESSURE
FLUID PRESSURE
2.0
600
30
50
40
2.5
25
ORIFICE SIZE: 1.5 mm (0.059 in.)
Bar/PSI
50
3.0
400
20
FLUID FLOW
ORIFICE SIZE: 1.0 mm (0.040 in.)
Bar/PSI
15
0.5
0
5
10
200
15
400
20
600
FLUID FLOW
25
30
800
5
oz./min.
cc/min.
0
5
10
200
15
400
20
25
600
30
800
FLUID FLOW
Performance Graphs are continued on page 4.
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
4 307–803
20
600
25
30
800
Air Cap Comparison
Air Cap and Operator Cleanliness
BEST
BEST
Atomization
177–033 177–036 177–039 180–739
177–033 177–036 177–039 180–739
Air Cap Air Consumption
Transfer Efficiency
BEST
AIR CAP AIR FLOW (SCFM)
15
177–033 177–036 177–039 180–739
14
13
12
11
10
177–033 177–036 177–039 180–739
Test Conditions:
Target Distance: 305 mm (12 in.)
Fluid Flow Rate: 300 cc/min (10 oz/min.)
PRO 4500 Gun with 2.8 bar (40 psi) air at the gun
inlet.
Fan Valve adjusted for a 356 mm (14 in.) pattern
width.
307-803
5
Notes
6 307–803
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
Measurement
Parlin 7
32
Parlin 10
13
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
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
Krebs Units KU
Saybolt Universal
SSU
100
Shell 2
40
Shell 3
15
Shell 4
Light
Saybolt Furol Sec.
30
23
98
Redwood No. 2 Sec.
Engler Degrees
Medium
2.9
48
22
Graco Warranty and Limitation of Liability
WARRANTY
Graco warrants all equipment listed in this manual which is 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. 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.
For Sales to Canadian Customers:
Except as expressly stated herein, Graco makers no representations, warranties or conditions, express, implied or collateral, concerning any goods or services sold, and GRACO SHALL NOT BE LIABLE IN ANY MANNER FOR any other representation,
warranty or condition of any kind, whether arising by operation of law or otherwise, including but not limited to, WARRANTIES OF
MERCHANTABLE QUALITY OR FITNESS FOR A PARTICULAR PURPOSE.
LIMITATION OF LIABILITY
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or for 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.
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or call Graco: 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: Atlanta, Chicago, Detroit, Los Angeles
Foreign Offices: Belgium, Canada, England, Korea, Switzerland, France, Germany, Hong Kong, Japan
GRACO INC.
P.O. BOX 1441 MINNEAPOLIS, MN
55440–1441
PRINTED IN U.S.A. 307–803 August 1986, Revised September 1996
8 307–803

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