Airtac GAF Filter GAF400C15AJW
The AirTAC Airtac GAF Filter GAF400C15AJW is a genuine compressed-air filter. Its diversion structure spins the air to separate liquid water and trap solid particles down to 5 µm, protecting downstream valves and tools. It has 1/2" ports and a 100 cc drain bowl. It is a filter only — it does not regulate or set pressure.
- TypeAir filter
- Port size1/2"
- Filtering grade5 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialMetal
- Drainautomatic
- Drain bowl100 cc
- Weight640 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAF Filter GAF400C15AJW
The GAF400C15AJW is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 100 cc metal drain bowl, while the 5 um HDPE core traps fine grain. It has no regulator, no gauge and no lubricator; it cleans the air but never sets pressure. This model uses a 1/2in port and weighs 640 g, placing it in the GAF400 size class that suits medium-flow branch lines.
Its metal bowl and automatic drain make it a low-maintenance choice for continuous duty, since the A drain clears condensate without manual attention. The 5 um element protects precision valves and instruments from finer particles than the standard 40 um grade, at the cost of more frequent element service. Rated for 0.15-0.9 MPa (20-130 psi) and -5 to 70 C, it must not freeze.
Airtac GAF Filter GAF400C15AJW Technical Specifications
| Model | Airtac GAF Filter GAF400C15AJW |
|---|---|
| Series | GAF400 air filter |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | Metal |
| Drain type | Automatic drain |
| Bracket | Not included (J) |
| Fluid | Air |
|---|---|
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 100 cc |
| Element | HDPE filter core |
| Weight | 640 g |
Specifications follow the official AirTAC GAF catalogue (pages 225-226). Air must not freeze in the unit. This is a filter only — it separates water and solid particles but does not set or hold a downstream pressure. To regulate pressure as well, use the matching GAFR400 filter-regulator.
Model Code: Airtac GAF Filter GAF400C15AJW
| GAF400 | GA400 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| J | No bracket (J) — supplied without the mounting bracket. |
| W | Filtering grade 5 µm. |
| (blank) | PT port thread. |
A GAF has no regulator and no pressure gauge — there is no type, gauge or reflux code. Need to regulate pressure too? The matching GAFR400-15 is the same filter with a built-in regulator.
Size Class & Flow Envelope
- GAF2001/8"-1/4" · 3000 L/min
- GAF3001/4"-1/2" · 6000 L/min
- GAF4003/8"-1/2" · 8000 L/min
- GAF5003/4" · 9000 L/min
- GAF6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. A filter this size drops less pressure at flow than the same-body GAFR filter-regulator, so match it to your peak demand.
| This model | GAF400 · 1/2" · curve to 8000 L/min |
|---|---|
| One size down | GAF300 |
| One size up | GAF500 (curve to 9000 L/min) |
| Add regulation | GAFR400-15 (filter + regulator) |
Where the Airtac GAF Filter GAF400C15AJW Is Used
CNC spindle air
Feed a 5 um filtered supply to a CNC spindle air curtain or tool changer, where fine particles could score precision surfaces.
Medium machine header
Protect a bank of valves on a 1/2in header feeding multiple actuators; the 100 cc bowl and auto drain handle shift-long condensate buildup.
Instrument air branch
Supply a 5 um clean branch to pressure sensors or flow meters, keeping calibration drift from particle contamination.
Is the Airtac GAF Filter GAF400C15AJW the Right Filter?
Choose the GAF400 body when your line needs 3/8in or 1/2in ports and a 100 cc condensate bowl; it sits between the GAF300 (60 cc, curve to 6000 L/min) and the GAF500 (108 cc, curve to 9000 L/min). The metal bowl suits demanding environments, but confirm compatibility for aggressive surroundings since no chemical data is printed. This model has an automatic drain, no bracket, a 5 um element and PT threads; if you need a bracket, drop the J, or choose blank for 40 um filtration. For a set pressure, use the matching GAFR400-15 filter-regulator instead of this plain filter. The 8000 L/min flow envelope is 1.33x the GAF300's 6000 L/min, so sizing up to this body gives a clear capacity step.
Quick checklist
- ✓ Body size for your peak flow (1/2" here)
- ✓ Element 40 µm (general) or 5 µm (fine)
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Bracket kept or removed (J)
- ✓ Need pressure control too? Use GAFR400
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, bowl accessible.
- check Place the filter FIRST in the air-prep train, ahead of any regulator or lubricator.
- check Keep pressure at or below the 1.5 MPa (215 psi) proof limit.
- check Drain condensate before the 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 640 g unit on its bracket, not on the tubing.
This is a filter only — it removes water and solid particles but adds no pressure control and no lubrication. Add a GAR regulator, a GAL lubricator, or step up to the GAFR400-15 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF400C15AJW FAQ
Filtering grade is 5 um. Working pressure range is 0.15-0.9 MPa (20-130 psi), proof pressure is 1.5 MPa (215 psi). Temperature range is -5 to 70 C. Drain bowl capacity is 100 cc, weight is 640 g, port is 1/2in, and the flow curve is plotted to 8000 L/min.
The A code means an automatic drain that expels condensate without manual intervention, ideal for unattended or wet lines. This model also has a metal bowl, which is a build choice; since no temperature or chemical data is printed, confirm compatibility for aggressive environments.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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