INSTRUCTIONS-PARTS LIST

This manual contains important warnings and information.

READ AND KEEP FOR REFERENCE.

INSTRUCTIONS

307–803

Rev. G

Supersedes F

ELECTROSTATIC AIR SPRAY

Air Caps and Fluid Nozzles

FAN PATTERN FLUID NOZZLES FAN PATTERN AIR CAPS (All Models)

PRO3500

PRO4500

PRO5500

Fluid Nozzle

Part No.

191–830

191–831

191–832

191–833

191–834

Fluid Nozzle

Orifice Size

0.75 mm

(0.030 in.)

1.0 mm

(0.040 in.)

1.2 mm

(0.047 in.)

1.5 mm

(0.059 in.)

1.8 mm

(0.070 in.)

Air Cap

Part No.

193–033

177–036

177–039

180–739

Pattern

Shape and

Length

Round End

381 to 432 mm

(15 to 17 in.)

Tapered End

381 to 432 mm

(15 to 17 in.)

Tapered End

356 to 407 mm

(14 to 16 in.)

Round End

381 to 432 mm

(15 to 17 in.)

Recommended Fluids

& Production Rates

Light to medium viscosity.

Medium to high production.

Medium to high viscosity and high solids.

Medium to high production.

Medium to high viscosity.

Medium to high production.

Medium to high viscosity and high solids.

Medium to high production.

ROUND PATTERN KITS

Light to Medium Viscosity. Light to Medium Production

PRO3500

PRO4500

PRO5500

Kit Part No.

(Manual No.)

222–329

(307–935)

222–330

(307–935)

Pattern

Diameter

102 to 152 mm

(4 to 6 in.)

203 to 254 mm

(8 to 10 in.)

NOTE: All the air cap pattern shapes and lengths were measured under the following conditions.

Distance to T arget: 305 mm (12 in.).

Atomization Air Pressure: 2.1 bar (30 psi).

Fan air: adjusted for maximum width.

Fluid Flow Rate: 300 cc/min. (10 oz./min.).

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

COPYRIGHT 1986, GRACO INC.

Graco Inc. is registered to I.S. EN ISO 9001

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.

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.

Terms

NOTE: Refer to the Viscosity Conversion Chart on the back cover to convert to other units of measurement.

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.

High Production:

(14 oz./min.)

Fluid flow of up to 600 cc/min.

(14 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.)

How to Use the Fluid Nozzle Graphs

260 Centipoise Fluid

160 Centipoise Fluid

70 Centipoise Fluid

20 Centipoise Fluid

KEY

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, 5psi), then use the next smallest nozzle size.

2 307–803

Fluid Nozzle Performance Graphs

Fluid pressures are measured at the spray gun inlet.

ORIFICE SIZE: 0.75 mm (0.030 in.)

Bar/PSI

50

3.0

45

2.5

40

35

2.0

30

25

1.5

20

1.0

15

10

0.5

5 oz./min.

0 1 2 3 4 5 6 7 8 9 10

Bar/PSI

50

3.0

45

2.5

40

35

2.0

30

25

1.5

20

1.0

15

10

0.5

5 oz./min.

0

ORIFICE SIZE: 1.2 mm (0.047 in.)

5 10 15 20 25 30 cc/min.

cc/min.

60 120

FLUID FLOW

180 240 300 200 400

FLUID FLOW

600 800

Bar/PSI

50

3.0

45

40

2.5

35

2.0

30

25

1.5

20

1.0

15

10

0.5

5 oz./min.

0

ORIFICE SIZE: 1.0 mm (0.040 in.)

5 10 15 20 25 30 cc/min.

200 400

FLUID FLOW

600 800

Performance Graphs are continued on page 4.

Bar/PSI

50

3.0

45

40

2.5

35

2.0

30

25

1.5

20

1.0

15

10

0.5

5 oz./min.

0

ORIFICE SIZE: 1.5 mm (0.059 in.)

5 10 15 20 25 30 cc/min.

200 400

FLUID FLOW

600 800

Bar/PSI

50

3.0

45

2.5

40

35

2.0

30

25

1.5

20

1.0

15

10

0.5

5 oz./min.

0

Fluid Nozzle Performance Graphs

Fluid pressures are measured at the spray gun inlet.

ORIFICE SIZE: 1.8 mm (0.070 in.)

5 10 15 20 25 30 cc/min.

200 400

FLUID FLOW

600 800

4 307–803

Air Cap Comparison

Atomization Air Cap and Operator Cleanliness

193–033 177–036 177–039 180–739

Transfer Efficiency

193–033 177–036 177–039 180–739

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.

193–033 177–036 177–039 180–739

Air Cap Air Consumption

15

14

13

12

11

10

193–033 177–036 177–039 180–739

307-803 5

6 307–803

Notes

Measurement

Poise

Centipoise

Parlin 7

Parlin 10

Fisher 1

Fisher 2

Ford Cup 3

Ford Cup 4

Krebs Units KU

Saybolt Universal

SSU

Shell 2

Shell 3

Shell 4

Viscosity Conversion Chart

Light Medium Heavy

0.2

20

32

13

30

15

12

10

100

0.7

70

20

33

36

28

35

370

2.6

260

68

58

1280

High

Solids

3.6

360

62

1730

40

15 48

22

Measurement

Zahn 1

Zahn 2

Zahn 3

Zahn 4

Zahn 5

Sears Craftsman Cup

Redwood No. 1 Sec.

Redwood No. 2 Sec.

Engler Degrees

Saybolt Furol Sec.

Light Medium Heavy

37

18 30

30

21

13

98

2.9

23

286

30.05

9.4

35

1060

105.6

34.65

124.5

High

Solids

41

28

18

1465

149

47.75

171.5

Manual Change Summary

The manual was updated to change air cap part no. 173–033 to 193–033.

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 PUR-

POSE.

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 April 1998

8 307–803