Graco Inc 313516C Adjust Spray Pattern, Suggested Starting Settings Atomization, Fan Air psi

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Setup

Adjust Spray Pattern

Do not exceed 100 psi (0.7 MPa, 7 bar) maximum fluid and air pressure. Higher pressures can cause parts to rupture and result in serious injury.

Use the fluid pressure regulator to adjust the spray gun fluid flow. Some models are equipped with a fluid control knob to make pre- cise fluid flow adjustments.

NOTICE

Use caution when operating the fluid con- trol knob near the closed position. The plastic needle tip may be damaged if forced too hard against the nozzle seat by the fluid control knob.

Follow these steps to establish the correct fluid flow and air flow:

1.To achieve desired flow, adjust the fluid flow using the fluid pressure regulator (L) installed in the gun fluid line. Typical indus- trial flow rates will vary with regulator pres- sures from 5 to 30 psi (34 to 210 kPa, 0.3 to 2.1 bar). If the fluid pressure is too low at the desired flow rate, install a smaller noz- zle. If the fluid pressure is too high, install a larger nozzle.

For spray guns equipped with the fluid con- trol knob, you can make flow rate changes at the spray gun. Rotate the fluid control knob clockwise to reduce the flow.

L

ti7019a

FIG. 10: Fluid Pressure Regulator

NOTE: A larger fluid nozzle at a reduced fluid pressure will maintain the same flow rate, but the fluid stream (velocity) will slow down.

When air is applied, the lower velocity allows the air to act on the fluid longer, which improves atomization.

2.Using the air pressure regulator (F), set the fan and atomizing air supply pressure per Table 1. Use these suggested settings as a starting point.

Table 1: Suggested Starting Settings

		Atomization
Spray Gun	Fan Air (psi)	Air (psi)

Conventional	35	35

HVLP	25	25

Compliant	25	25

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313516C

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Contents Important Safety Instructions Automatic AirPro Spray GunsContents ModelsFire and Explosion Hazard Pressurized Equipment Hazard Selection Charts General Metal ApplicationsHigh Wear Applications Wood ApplicationsGun Selection Hvlp GunsAir Caps Proper Needle/Nozzle SelectionConventional Guns Atomizing Air Fan Air Air FlowAir Flow Maximum HVLP/Compliant inlet manifold pressure Installation Ventilate Spray BoothConfigure Gun and Manifold Circulating SystemInstall Air Fittings Ground SystemReciprocating Arm Rod Mount Mount GunStationary Support Retrofit Adapter Plate Retrofit Adapter Plate MountConnect Air Line SetupConnect Fluid Hose Flush Spray Gun Position Air CapAdjust Spray Pattern Suggested Starting Settings AtomizationFan Air psi Spray GunAir Pressure Regulator Pressure Relief Procedure OperationApply Fluid IncorrectDaily Gun Care General System Maintenance Clean and Flush GunGeneral Troubleshooting TroubleshootingProblem Cause Solution Spray Pattern Troubleshooting Service DisassemblyAlternate Fluid Control Shown Reassembly Parts 17† 21† Alternate Fluid Control 20† 22† 36† 24a 25aGasket General Metal Applications Repair KitsNozzle High Wear Applications Wood ApplicationsManifold with bottom fluid ports Part Description QtySide Fluid Ports and Fan Adjustment Valve Part No C342Description Qty Not shown, optional size Not sold separately Part No only106 Accessories Hvlp Pressure Verification Kit Inline Fluid Filter 24B707Spray Tip Filters Count Carton Pack DescriptionManifold Models 288217 or 288218, All Gun Models DimensionsManifold Model 288221, All Gun Models Manifold Model 288223 or 24C342, All Gun Models Manifold Model 288160 or 288211, All Gun ModelsMounting Hole Layouts 23.4 mm 10.2 mm 53.3 mm 50 in .7 mm Mounting hole 216 23.4 mm 10.2 mm 27.9 mm 375 in .5 mm Mounting hole Retrofit Adapter Plate Technical Data Triggering SpeedSound Data Cylinder Air Fluid Pressure Air Pressure Msec to fullyGraco Information Graco Standard WarrantyGraco Headquarters Minneapolis