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FEATURES
• Stage One of two-stage system removes water and
contaminants down to 5 microns
• Stage Two coalescer removes oil and submicron
particles down to .01 microns
• In-line filter designed with reusable filter element
• Completely disassemble filter and coalescer
by hand without tools
• Auto-drain valves standard with filter and coalescer
BENEFITS
• Dry air for all air-operated equipment
• Clean air increases equipment life and product
performance
• Easy-to-clean and change coalescing filter
• No-hassle maintenance
• Eliminates manual emptying of filters
INDUSTRIAL
PROVEN QUALITY. LEADING TECHNOLOGY.
IN-LINE AIR FILTERS
& COALE SC ER S
Remove Water, Oil & Contaminants from Compressed Air
Components and systems for clean, dry air
Model Number
234405
Model Number
234409
Model Number
234408
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Call today for product information or to request a demonstration.
1.877 .84GRACO (1-877-844-7226) or visit us at www.graco.com.
All written and visual data contained in this document are based on the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice.
©2003 Graco Inc. Form No. 320553 Rev. A 7/03 Printed in the U.S.A.
All other brand names or marks are used for identification purposes and are trademarks of their respective owners.
Air Flow Maximum
Part Number Description Air Inlet Air Outlet Capacity Inlet Pressure
234405 Air filter/coalescer assembly 1/2" npt (f) 1/2" npt (f) 70 CFM 175 psi
(both with auto drain) (1.2 MPa, 12 bar)
234406 Stage 1 - Air filter with auto drain 1/2" npt (f) 1/2" npt (f) 108 CFM 175 psi
(1.2 MPa, 12 bar)
234407 Stage 2 - Coalescer with auto drain 1/2" npt (f) 1/2" npt (f) 70 CFM 175 psi
(1.2 MPa, 12 bar)
234408 Air filter with auto drain 3/4" npt (f) 3/4" npt (f) 300 CFM 175 psi
(1.2 MPa, 12 bar)
234409 Coalescer with auto drain 3/4" npt (f) 3/4" npt (f) 115 CFM 175 psi
(1.2 MPa, 12 bar)
Instruction Manual
309919
Technical Specifications & Ordering Information
Air Control Systems
Recommended Air Piping Layout
Additional
1/2" drop
Compressor
Drain air compressor
daily in the A.M.
Flexible Hose
Between Compressor
and Main Air Line
Main air line
1" pipe minimum
Additional
1/2" drop
Ball
Valve
Ball
Valve
Oil Coalescer
Ball
Main air line
Valve
1" pipe minimum
Union
15' to 20'
Union
234409
Bypass
Ball Valve
Air Filter
234408
Union
Drain Leg
Additional
1/2" drop
Ball
Valve
Ball Valve
Drain daily
Union
Valve
Union
Ball
Air In
Ball Valve
1/2" drop
Union
Ball Valve
Recommended 4" drop in 50' (galvanized or copper pipe is recommended)
Slope Down and Away
1/2" drop
Ball
Air Control
Unit or Air
Filter
Valve
Union
Ball Valve
Drain daily
Air Control
Unit or Air
Filter
Ball
Valve
Drain Leg
Air Out
Ball Valve
Refrigerated
Drain daily
Air Dryer
Graco Membrane
or Desiccant Air
Drying Systems
at Paint Booth
Ball
Valve
Union
Ball
Valve
Union
8
1
6
6
1
4
4
8
1
2
2
1
1
8
1
6
6
1
4
4
8
1
2
2
1
1