Devilbiss AGN-502 Automatic Spray Gun

AGN-502 Automatic Spray Gun

Part No.: AGN502FFH-797B

FF – nozzle size (e.g. FF,D,E,FW, etc…)
H – fluid tip material: High grade stainless steel
797 – air cap (e.g. 30, 43,704, 797)
B – thread code (“B” for 1/4″ BSP, “N” for 1/4″ NPS)

Technical Specifications

Weight: 560 g
Diaphragm: 6 mm push-in tube connector
Material Connection: 3/8″
Recommended Working Pressure (max.):
Atomising air supply : 7 bar (100 lbf/in2)
Diaphragm air supply : 7 bar (100 lbf/in2)
Coating material supply : 6 bar (87 lbf/in2)

Fluid Tip/Nozzle

Range: 0.7-2.8mm
(AV-1915-G / AV-645-G)
(AV-1915-FX / AV-645-FX)
(AV-1915FZ / AV-645-FZ)
(AV-1915FF / AV-645-FF)
(AV-1915FW / AV-645-FW)
(AV-1915-E / AV-645-E)
(AV-1915DE / AV645-DE)
(AV-1915-D / AV645-D)
(AV-1915-AC / AV645-AC)

Air Cap

Atomization Technique: conventional air spray, needle-less 
Air consumption: see chart
Air Cap Selection Guide:
see chart

Air Cap No. Order No. Air Flow (l/min)
30 AV-4239-30 275
43 AV-4239-43 396
58 AV-439-58 215
62 MB-4039-62 444
64 MB-4049-64 462
67 MB-4039-67 467
78 MB-4039-78 617
80 MB-4039-80 391
186 AV-4239-186 331
704 AV-4239-704 419
705 AV-4239-705 260
765 AV-4239-765 547
777 AV-4239-777 674
797 AV-4239-797 680


A lightweight, needleless diaphragm operated automatic spray gun suitable for installations handling abrasive materials where a fluid needle experience high levels of wear or erosion. In order to improve operation and durability, hardened steel on wear points is used and fluid tips in either high grade stainless steel or nitralloy are available. The standard gun is fitted with a rubber diaphragm is not suitable for use with solvent based coating materials, however it can be converted for use with solvent based coating materials by fitting a PTFE (teflon) protective diaphragm. Remotely positioned valves (supplied by user) control the air supplies for atomisation and diaphragm operation. Coating material supply is by a pressure feed system.


ceramic glaze, sanitary glazing, vitreous enamels, water sprays, die lubricants, release agents, liquid polishing compounds and similar materials

Service Manual

AGN-502 Operation Manual (source: Manualslib)