Airtac GAF Filter GAF400N10AW
The AirTAC Airtac GAF Filter GAF400N10AW 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 GAF400N10AW
The GAF400N10AW 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 element traps fine grain. It cleans the air for downstream components; it does not regulate pressure or add oil.
This 3/8in model weighs 640 g and carries a nylon bowl with an automatic drain. The diversion structure keeps pressure loss low and water-separation efficiency high, making it a solid first stage in a pneumatic line.
Airtac GAF Filter GAF400N10AW Technical Specifications
| Model | Airtac GAF Filter GAF400N10AW |
|---|---|
| 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 | Included |
| 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 GAF400N10AW
| 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. |
| (blank) | Mounting bracket included. |
| 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 GAF400N10AW Is Used
Precision valve protection
Feed a bank of precision pneumatic valves on a machining center with 5 um filtered air to keep fine grit from affecting spool operation.
Assembly line branch feed
Mount this 3/8in filter at the branch point of an assembly line to protect downstream cylinders and tooling from water slugs.
Instrument air pre-filter
Use before sensitive instruments or flow meters where 5 um filtration and automatic draining reduce manual service checks.
Is the Airtac GAF Filter GAF400N10AW the Right Filter?
Choose the GAF400 body when your line needs 3/8in or 1/2in ports and a 100 cc condensate bowl. The nylon bowl is a build choice; confirm compatibility for aggressive surroundings since no chemical data is printed. The A code gives you an automatic drain for unattended or wet lines, while the included bracket suits panel or frame mounting. The W element filters to 5 um for precision valves, and the PT thread standard must match your fittings. If you also need a set pressure, use the matching GAFR400-10 filter-regulator instead. The 8000 L/min flow envelope is 1.33x the GAF300's 6000 L/min, so this body sizes up comfortably for larger branches.
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 GAF400N10AW FAQ
It is a filter-only unit with a 5 um HDPE element, 3/8in PT ports, and a 100 cc nylon drain bowl. Working pressure is 0.15-0.9 MPa (20-130 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. The unit weighs 640 g and has a flow curve plotted to 8000 L/min.
The A code means the GAF400N10AW has an automatic drain that expels condensate without manual intervention, ideal for wet or unattended lines. It replaces the semi-auto and manual drains found on blank-code models, so you do not need to open a petcock to empty the 100 cc bowl.
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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