Airtac GAF Filter GAF400N10AJW
The AirTAC Airtac GAF Filter GAF400N10AJW 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 3/8" ports and a 100 cc drain bowl. It is a filter only — it does not regulate or set pressure.
- TypeAir filter
- Port size3/8"
- Filtering grade5 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialNylon
- 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 GAF400N10AJW
The GAF400N10AJW is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 100 cc nylon bowl, while the 5 um HDPE core traps fine grain. It protects downstream valves and cylinders from contamination, but it does not regulate pressure and has no gauge.
This 3/8in model weighs 640 g and carries a 5 um element for finer filtration. Its nylon bowl suits environments where a transparent polycarbonate bowl is not preferred, though compatibility for aggressive surroundings should be confirmed with the datasheet.
Airtac GAF Filter GAF400N10AJW Technical Specifications
| Model | Airtac GAF Filter GAF400N10AJW |
|---|---|
| Series | GAF400 air filter |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | Nylon |
| 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 GAF400N10AJW
| GAF400 | GA400 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 10 | Port size 3/8". 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 GAFR400-10 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 · 3/8" · curve to 8000 L/min |
|---|---|
| One size down | GAF300 |
| One size up | GAF500 (curve to 9000 L/min) |
| Add regulation | GAFR400-10 (filter + regulator) |
Where the Airtac GAF Filter GAF400N10AJW Is Used
Fine filtration for precision valves
The 5 um element protects sensitive pneumatic valves and instrument air circuits from fine particles that a 40 um filter would pass.
Unattended machine lines
The automatic drain clears condensate without manual checks, suiting a 3/8in line feeding a machine tool or automated assembly station.
Panel-mounted filter station
Without the bracket, this unit mounts directly to a panel or existing frame, saving space in a compact control cabinet.
Is the Airtac GAF Filter GAF400N10AJW the Right Filter?
Choose this GAF400N10AJW for a 3/8in line needing fine 5 um filtration with an automatic drain for unattended operation. The J code means no mounting bracket is included, so plan for a panel mount or existing bracket. The nylon bowl is a build choice, and the PT thread standard must match your fittings. If you need a set pressure downstream, pair it with a GAR regulator or upgrade to the GAFR400-10 filter-regulator. The 100 cc drain bowl holds about 1.7x the condensate of a GAF300's 60 cc bowl, so you will drain it less often.
Quick checklist
- ✓ Body size for your peak flow (3/8" 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 GAFR400-10 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF400N10AJW FAQ
It is a 3/8in air filter with a 5 um HDPE element, a 100 cc nylon bowl, and a weight of 640 g. The working pressure range is 0.15-0.9 MPa (20-130 psi), proof pressure is 1.5 MPa (215 psi), and the temperature range is -5 to 70 C. The flow curve is plotted to 8000 L/min.
The A code means it has an automatic drain that expels accumulated condensate without manual intervention. This is ideal for wet or unattended lines where regular manual draining is impractical.
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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