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

INSTRUCTIONS–PARTS LIST
307–803
Rev. D
Supersedes C
This manual contains IMPORTANT
WARNINGS AND INSTRUCTIONS
READ AND RETAIN FOR REFERENCE
ELECTROSTATIC AIR SPRAY, FAN PATTERN AND ROUND PATTERN
AIR CAPS AND FLUID NOZZLES
FAN PATTERN AIR CAPS (All Models)
FAN PATTERN FLUID NOZZLES
PRO3500
Fluid Nozzle
Part No.
PRO4000,
PRO5000,
AS4000,
AS5000
Fluid Nozzle
Part No.
185–156
181–298
1.0 mm
(0.040 in.)
185–157
181–299
1.2 mm
(0.047 in.)
181–300
1.5 mm
(0.060 in.)
185–159
181–301
1.8 mm
(0.070 in.)
ROUND PATTERN KITS
Light to Medium Viscosity. Light to Medium Production
PRO3500
Kit Part No.
Recommended Fluids
& Production Rates
177–033
Round End*
381 to 432 mm
(15 to 17 in.)
Light to medium viscosity
Medium to high production
177–037
Round End*
279 to 330 mm
(11 to 13 in.)
Light to medium viscosity
Light to medium 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
High production
NOTES:
1. All the air cap pattern shapes and lengths were
measured under the following conditions:
Pattern
Diameter
(Manual No.)
(Manual No.)
222–329
(307–935)
218–998
(307–732)
102 to 152 mm
(4 to 6 in.)
222–330
(307–935)
220–906
(307–732)
203 to 254 mm
(8 to 10 in.)
GRACO INC.
Pattern
Shape and
Length
Orifice Size
185–158
PRO4000,
PRO5000,
AS4000,
AS5000
Kit Part No.
Air Cap
Part No.
Distance from Gun End to Workpiece: 254 mm (10
in.)
Air Pressure: 2.1 bar (30 psi)
Production Rate: 300 cc/min. (10 oz./min.)
Other conditions will produce different results.
2. See page 3 for the
Graphs.
P.O. BOX 1441 MINNEAPOLIS, MN
COPYRIGHT, 1986, GRACO INC.
Fluid Nozzle Performance
55440–1444
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 bodily injury,
including splashing in the eyes or on the skin, or electric shock.
NOTE: Refer to your air spray gun instruction manual for installing 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 70
Medium: 70 centipoise at 70
Heavy: 260 centipoise at 70
Light Production: Fluid flow of up to 200 cc/min.
(7 oz./min.)
Medium Production: Fluid flow of up to 600 cc/min.
(14 oz./min.)
High Production: Over 400 cc/min. (14 oz./min.)
NOTE: Refer to the Viscosity Conversion Chart on
the back cover to convert to other units of
measurement.
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.)
HOW TO USE THE FLUID NOZZLE GRAPHS
Fluid nozzle performance will vary depending on fluid
viscosity, fluid flow, and fluid pressure . Using these
variables, Example 1, below, shows you how to use the
graphs to choose the fluid nozzle best suited for your installation. Once you have selected your fluid nozzle,
Example 2, shows you how to use the graphed information to adjust the variables to get the results you want.
KEY
Each of the fluid nozzle graphs has three
graphed lines:
L
Light Viscosity
M Medium Viscosity
H Heavy Viscosity
NOTE: For the best atomization and electrostatic results, use the largest orifice nozzle size that is
compatible with your pressure and flow conditions.
EXAMPLES:
1. If your fluid is medium viscosity, your required flow is
450 cc/min., and your desired fluid pressure is 1.05
bar, you would proceed as follows to determine
which fluid nozzle would best suit your needs.
2. If you are using a 1.2 mm fluid nozzle, your fluid is
medium viscosity, and your required flow is 355 cc/
min., you would proceed as follows to determine how
much fluid pressure is required.
a. On each of the fluid nozzle graphs, find 450 cc/
min. on the flow axis and 1.05 bar on the pressure axis. Mark the spot with a pencil.
a. Locate the graph for the 1.2 mm nozzle.
b. Compare how close the marked spot is to the
graphed line for medium viscosity fluid (M).
The nozzle whose graph has the mark which
comes closest to the medium viscosity line is the
nozzle you should use.
c.
c. In this case, you should use a 1.2 mm nozzle.
b. Find 355 cc/min. on the flow axis.
Move up from this point on the graph to the line
for medium viscosity fluid (M).
d. Look to the left, on the pressure axis, to find the
fluid pressure required.
e. The fluid pressure required is about 0.9 bar.
FLUID NOZZLE PERFORMANCE GRAPHS
ORIFICE SIZE: 1.0 mm (0.040 in.)
Bar/PSI
3.0
H
M
L
3.0
2.0
1.5
1.0
2.5
2.0
1.5
1.0
0.5
M
L
0.5
oz./min.
H
2.5
ORIFICE SIZE: 1.2 mm (0.047 in.)
Bar/PSI
cc/min.
200
400
600
800
oz./min.
cc/min.
1000
200
400
FLUID FLOW
3.0
1.5
1.0
M
L
2.5
2.0
1.5
1.0
0.5
oz./min.
cc/min.
1000
H
M
L
0.5
800
2.0
H
2.5
600
ORIFICE SIZE: 1.8 mm (0.070 in.)
Bar/PSI
3.0
FLUID FLOW
ORIFICE SIZE: 1.5 mm (0.060 in.)
Bar/PSI
200
400
600
FLUID FLOW
800
1000
oz./min.
cc/min.
200
400
600
800
1000
FLUID FLOW
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
Measurement
Light
Medium
30
Fisher 1
30
Fisher 2
15
33
Sears Craftsman Cup
Ford Cup 3
12
36
Redwood No. 1 Sec.
98
286
1060
1465
Ford Cup 4
10
28
Engler Degrees
2.9
9.4
34.65
47.75
35
124.5
171.5
30.05
105.6
149
68
Gardner Holdt Bubble
Krebs Units KU
Saybolt Universal
SSU
100
0
Saybolt Furol Sec.
Redwood No. 2 Sec.
35
58
62
370
1280
1730
23
SERVICE INFORMATION
Added fluid nozzles and round pattern kits for Model 3500SC
Spray Gun. Deleted air cap part numbers 177–034, 177–036,
177–846, and 180–740.
.
THE GRACO WARRANTY AND DISCLAIMERS
WARRANTY
Graco warrants all equipment manufactured by it 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. As purchaser’s sole remedy for breach of this warranty, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment proven 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, 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 with Graco equipment of
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.
DISCLAIMERS AND LIMITATIONS
THE TERMS OF THIS WARRANTY CONSTITUTE PURCHASER’S SOLE AND EXCLUSIVE REMEDY AND ARE IN LIEU OF ANY OTHER WARRANTIES (EXPRESS
OR IMPLIED), INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, AND OF ANY NON–CONTRACTUAL LIABILITIES, INCLUDING PRODUCT LIABILITIES, BASED ON NEGLIGENCE OR STRICT LIABILITY. EVERY FORM OF LIABILITY FOR DIRECT, SPECIAL OR
CONSEQUENTIAL DAMAGES OR LOSS IS EXPRESSL Y EXCLUDED AND DENIED. IN NO CASE SHALL GRACO’S LIABILITY EXCEED THE AMOUNT OF THE
PURCHASE PRICE. ANY ACTION FOR BREACH OF WARRANTY MUST BE BROUGHT WITHIN TWO (2) YEARS OF THE DATE OF SALE.
EQUIPMENT NOT COVERED BY GRACO WARRANTY
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH
RESPECT TO ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not
manufactured by Graco (such as electric motor, 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.
Factory Branches: Atlanta, Dallas, Detroit, Los Angeles, West Caldwell (N.J.)
Subsidiary and Affiliate Companies: Canada; England; Switzerland; France; Germany; Hong Kong; Japan
GRACO INC.
P.O. BOX 1441 MINNEAPOLIS, MN 55440–1444
PRINTED IN U.S.A. 307–803 8–86 Revised 2–89
4ą307-803

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