Binks 21, Manual

Binks Model 21  

AutoMAtic SprAy Gun

(Brass Body)

6220-XXXX-X

Replaces 

Part Sheet 

77-1143R-17   

Part 

Sheet

77-1143R-18

Binks Model 21 (Brass Body) AutoMAtic SPRAy Gun

General Arrangement Diagram and Hook-up

Fluid

Atomizing Air

Side Port

Control

Mounting 

Lockscrew

Mounting Hole 

(1/2" Dia.)

Fluid 

Adjustment

Control

Fluid 

Inlet

3/8 NPS(m)

Atomizing 

Air Inlet

1/4 NPS(m)

Oil and 

Water 

Extractor

Typical Air 

Compressor

Typical

Pressure

Tank

Typical

Pump w/

Container

Cylinder 

Operating

Air Inlet

1/4 NPS(m),

(50-60 PSI Min.)

Atomizing Air

(Through Extractor)

Atomizing

Air

Atomizing

Air

Cylinder Air

Cylinder Air 

(Through Extractor)

Cylinder Air

Cylinder 

Air

3-Way Valve

Fluid

Fluid

3-Way 

Valve

3-Way 

Valve

Back 

Pressure 

Control

Pump 

Speed 

Control

To Fluid Supply

Air Supply from 

Compressor or 

Air Line

Air Supply  

to Pressure  

Tank Inlet

Air Supply  

from 

Compressor 

or Air Line

Shut-Off

Cocks

For multiple gun installation, a fluid manifold may be used. 

Fluid adjustments are made using the fluid control screw on 

each gun. However, when precise fluid control is necessary, 

a fluid regulator for each gun must be used.

1.  Provide 50-60 PSI (minimum) air pressure for gun cylinder 

operation.

2.  Air line from gun to 3-way valve should be as short as  

possible for maximum speed of operation.

3.  Recommended hose sizes are 3/8" for fluid and 1/4" for air.

Oil and Water 

Extractor