Graco 332458B Air Supply, Air Requirements, Air Connections, Key Connection Description

Page 20

Air Supply

Air Supply

Air Requirements

•Compressed air supply pressure: 85-100 psi (0.6–0.7 MPa, 6.0-7.0 bar).

•Air hoses: use grounded hoses that are correctly sized for your system.

•Air regulator and bleed-type shutoff valve: include in each air line to fluid supply equipment. Install an additional shutoff valve upstream of all air line accessories to isolate them for servicing.

Trapped air can cause a pump or dispense valve to cycle unexpectedly, which could result in serious injury from splashing or moving parts. Use bleed-type shutoff valves.

To reduce the risk of fire and explosion if using a Graco electrostatic gun, a shutoff valve must be installed in the gun air line to shutoff the atomizing and turbine air to the gun. Contact your Graco distributor for information on air shutoff valves for electrostatic applications.

•Air line filter: to filter oil and water out of the air supply and help avoid paint contamination and clogged solenoids. See Technical Data, page 37, for air filtration requirements.

Air Connections

1.Tighten all system air and fluid line connections as they may have loosened during shipment.

2.Connect the main air supply line to the main air inlet (136). This air line supplies the solenoids, valves, and pumps. Do not use this line to supply the gun’s atomizing air.

3.Connect a separate, dedicated, clean air supply line to the air inlet (159a) of the air flow switch.

This air supplies gun atomizing air. The air flow switch detects air flow to the gun and signals the controller when the gun is being triggered.

NOTE: If there is more than one gun (for example, a separate gun for each color), the atomizing air outlet (159c) must be branched to each gun. For ease of maintenance, install a ball valve at all air line tees.

Figure 11 Atomizing Air and Air Manifold Connections

Key

Connection

Description

 

 

A

Air inlet

 

 

C

Air cutoff output

 

(plugged)

M

Exhaust muffler

 

 

S

Solvent cutoff output

 

(plugged)

20

332458B

Page 19 Page 21
Image 20
Page 19 Page 21
Contents Important Safety Instructions ProMix PD2K Proportioner for Automatic Spray ApplicationsContents Related ManualsModels 0359Model AC2000 High Pressure Identification Label Fire and Explosion Hazard Electric Shock HazardIntrinsic Safety Skin Injection HazardMoving Parts Hazard Toxic Fluid or FumesPersonal Protective Equipment Equipment Misuse HazardImportant Isocyanate ISO Information Isocyanate ConditionsMoisture Sensitivity of Isocyanates Changing MaterialsSystem Control Drawing 16P577 Length ft mNON-HAZARDOUS Location only Hazardous Classified LocationComponent Description Configure Your SystemSelect a Base Model Typical Installation Hazardous Classified Location NON-HAZARDOUS Location onlySelect Hoses Hose Selection ToolRecommended Hose Sizes internal diameter for a and B Viscosity Ratio Resin a Catalyst BApplication Gun Model Gun Manual No Select a Spray GunSpray Guns Kit Part No Kit Description Select Non- is Color and Catalyst Change KitsLow Pressure Circulating Kits Select is Remote Color Change Kits Color + Solvent ValvesSelect Pump Expansion Kits General Information Mounting the PD2K Base UnitInstall the Display Module Advanced Display Module Connection PortsAir Supply Air RequirementsAir Connections Key Connection DescriptionFluid Supply Fluid RequirementsSingle Color Connections Color Change ConnectionsTSL Cup Kit Catalyst 35 cc pumps Repeat for the lower throat cartridgeSolvent Meter Accessory Light Tower AccessoryWire Key Electrical SupplyElectrical Requirements Electrical ConnectionsGrounding Hazardous Location NON-HAZARDOUS Location KeyCheck Resistance Object Being SprayedSolvent Reservoir or Purge Station Electrical Schematics Power ModuleEfcm Efcm J8 J9 J15 J16 J14 J10 J15 J16 Electrical Schematic, Sheet 3, Hazardous Location Optional Cables Modules Dimensions Technical Data Positive Displacement Metric ProportionerGraco Standard Warranty Graco Information
Top Page Image Contents