Graco Inc 308741N dimensions Air Flow and Atomizing Pressure, Atomizing Air Pressure

Page 6

Air Flow and Atomizing Pressure

NOTE: All tests were completed with the 0.055 in. (1.397 mm) nozzle, large pattern air cap, and the pattern adjust- ment valve fully open.

Air Flow

 

35

 

 

 

 

 

 

 

30

 

 

 

 

 

 

(scfm)

25

 

 

 

 

 

 

20

 

 

 

 

 

 

FLOW

15

 

 

 

 

 

 

AIR

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

10

20

30

40

50

60

70

GUN INLET PRESSURE (psi)

Atomizing Air Pressure

(inlet pressure versus atomizing pressure)

 

20

 

 

 

 

 

 

(psi)

18

 

 

 

 

 

 

16

 

 

 

 

 

 

PRESSURE

 

 

 

 

 

 

14

 

 

 

 

 

 

12

 

 

 

 

 

 

ATOMIZING

10

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

NOMINAL

6

 

 

 

 

 

 

4

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

10

20

30

40

50

60

70

GUN INLET PRESSURE (psi)

Gun Inlet Pressure

Nominal Atomizing Pressure

psi (kPa, bar)

psi (kPa, bar)

 

 

 

10 (70, 0.7)

1

(7, 0.1)

 

 

 

20 (140, 1.4)

4

(28, 0.2)

 

 

 

30 (210, 2.1)

7

(48, 0.4)

 

 

 

40 (280, 2.8)

10

(70, 0.7)

 

 

 

50 (345, 3.4)

13

(91, 0.9)

 

 

60 (410, 4.1)

16 (111, 1.1)

 

 

 

 

70 (480, 4.8)

19

 

(132, 1.3)

 

 

 

 

6 308741

Image 6
Contents Instructions Parts List Table of ContentsSymbols 308741Pressurized Equipment Hazard Selection Charts Hvlp Spray Gun AssembliesAssemblies Hvlp Spray Gun and Pressure Cup AssembliesHvlp Spray Gun and Gravity Cup Optional Hvlp Air CapsAir Flow and Atomizing Pressure Air FlowAtomizing Air Pressure Typical Installation Ventilate the Spray BoothSetup Connect the Air LineConnect the Fluid Hose Adjust the Spray Pattern Flush the Spray GunRelieve the Pressure Position the Air Cap Fluid Velocity of Fluid Nozzles At the Same Flow Rate Pressure Drop Chart Air Regulator Pressure Gun Inlet Pressure SettingInch 7.9 mm I.D. hose Pressure Relief Procedure OperationApplying the Fluid Daily Gun Care, Flushing, and Cleaning General System MaintenanceDo not immerse the gun in solvent 7035A 7044A 7045A Lubricate Troubleshooting Problem Cause SolutionService Items Needed for ServiceFluid Packings Replacement 2b 2a Complete Gun Packing Replacement 20 or 25b 19 or 25a Service 308741 Parts Item 2 includes 2a-2bItem 13 includes item 13a Item 25 includes 25a-25d Gun Needle Nozzle Kit Part No to Pressure Feed Hvlp Spray Gun AssemblyDescription Qty Item 12 Nozzle Needle Assy7585A Gravity Feed Hvlp Spray Gun Assembly Accessories SST Pressure Cup Kit 239802 with single air regulator Gravity CupGravity Cup Holder Bracket Quart Remote SST Pressure CupDimensions Technical DataCategory Data 308741 Graco Standard Warranty Graco InformationToll Free