Graco 309550Y Mix Chamber Kits, Round Pattern Guns, Flat Pattern Guns, Sample part no. AR4242

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Parts

Mix Chamber Kits

Round Pattern Guns

Mix Chamber Kit	Nozzle	Nozzle Drill	Impingement	Impingement	Counterbore	Counterbore
(includes drill bits)	Orifice	Bit Size,	Port Size	Port Drill Bit	Size	Drill Bit Size,
	Size	in. (mm)		Size, in. (mm)		in. (mm)


AR2020	0.042	#58 (1.00)	0.020	#76 (0.50)	0.060	#53 (1.50)

AR2929	0.052	#55 (1.30)	0.029	#69 (0.70)	0.060	#53 (1.50)

AR3737	0.052	#55 (1.30)	0.037	#63 (0.94)	N/A	N/A

AR4242	0.060	#53 (1.50)	0.042	#58 (1.00)	N/A	N/A

AR5252	0.070	#50 (1.75)	0.052	#55 (1.30)	N/A	N/A

AR6060	0.086	#44 (2.15)	0.060	#53 (1.50)	N/A	N/A

AR7070	0.094	3/32 (2.35)	0.070	#50 (1.75)	N/A	N/A

AR8686	0.116	#32 (2.90)	0.086	#44 (2.15)	N/A	N/A

Flat Pattern Guns

Mix Chamber	Ref. No.	Nozzle	Nozzle Drill	Impingement	Impingement	Counterbore	Counterbore
Kit (includes	40†,	Orifice	Bit Size,	Port Size	Port Drill Bit	Size	Drill Bit Size,
drill bits and	O-ring	Size	in. (mm)		Size, in. (mm)		in. (mm)
o-ring)


AF2020	246360	0.094	3/32 (2.35)	0.020	#76 (0.50)	0.060	#53 (1.50)

AF2929	246360	0.094	3/32 (2.35)	0.029	#69 (0.70)	0.060	#53 (1.50)

AF4242	246360	0.094	3/32 (2.35)	0.042	#58 (1.00)	N/A	N/A

AF5252	246360	0.094	3/32 (2.35)	0.052	#55 (1.30)	N/A	N/A

†Available only in flat mix chamber kits or in 246360 multi-pack kit.

Mix Chamber Part No. Reference Guide

Sample part no. AR4242:

AR	42	42


AR=Air purge	A orifice size	B orifice size
round pattern	(.042 in.)	(.042 in.)
AF=Air purge
flat pattern

309550Y

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Image 37

Contents Plural Component, Impingement Mix Air Purge Spray Gun Manual Conventions ContentsRound Pattern Guns List of Models/Mix Chamber Selection GuideFlat Pattern Guns No., Series In. mm Flat Pattern Stud Wall GunIn. mm 1000 psi MPa, 70 bar 249525 249526Wide Round Pattern Gun Spatter Pattern GunFour-Hose Gun Non 11 Ratio GunsPersonal Protective Equipment Fire and Explosion Hazard Key Overall ViewIsocyanate Hazard Piston Safety LockKeep a and B Components Separate GroundingTurning Air Cap Follow Pressure Relief Procedure,Loss of Air Pressure Resin ISO SetupSetup Shutdown Pressure Relief Procedure Optional Fluid Manifold Optional ConfigurationsPosition Remove Front End,Optional Hose Position Follow Pressure Relief Procedure, page 15. AlsoFlat Spray Tips Maintenance Clean Air Cap Clean Outside of GunClean Muffler Clean Fluid ManifoldClean Passages Clean Mix Chamber NozzleClean Impingement Ports Nozzle Drill Bit SizesCbip Impingement Port Drill Bit SizesProblem Cause Solution TroubleshootingProblem Cause Solution Gun Triggered Fluid Spraying Theory of OperationGun Detriggered Air Purging Cutaway View Tools Required RepairLubrication Remove Front EndX Z Attach Front EndMix Chamber and Side Seal Cartridges 18 B Check Valves Piston Air Valve Piston Safety LockCheck Valve 26 Detail PartsRound Pattern Guns, Part No. Description QtySee Flat Pattern Guns, See Supplied Tools,Detail Views Round Pattern Guns Mix Chamber KitsFlat Pattern Guns Mix Chamber Part No. Reference GuideGun Repair Kits Flat Tip KitsCheck Valve Filter Screen Kits Flat Tip Part No. Reference GuideKit Part No Qty in Kit Drill Bit Size Illustration Nominal Drill Bit KitsDrill Bit Kit Air Purge Handle Cleanout Drill Kit119386 248969Wide Pattern Mix Chamber Kits AccessoriesStainless Steel Side Seal Kits Polycarballoy Side Seal KitsExtension Tip Seal Kits Extension Tip KitsExtension Tip Air Cap Kit Flat Pattern Stud Wall KitSolvent Flush Canister Kit Spatter Conversion KitPour Nozzle Kit Gun CoverGun Cleaning Kit Tip Cleanout ToolCirculation Manifold Air Flow Data in scfm m3/min Technical DataCategory Data Graco Information Graco Standard WarrantyToll Free