Airtac GAF Filter GAF400N10W
The AirTAC Airtac GAF Filter GAF400N10W 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
- Drainsemi-auto + manual
- 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 GAF400N10W
The GAF400N10W 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 protects downstream valves and tools from contamination, but it does not regulate pressure and has no gauge.
This model uses a 3/8in port and weighs 640 g, placing it in the mid-size GAF400 class. The nylon bowl is a build choice for the environment, and the semi-auto plus manual drain gives you both automatic purging and a manual backup.
Airtac GAF Filter GAF400N10W Technical Specifications
| Model | Airtac GAF Filter GAF400N10W |
|---|---|
| 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 | Semi-auto drain + manual 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 GAF400N10W
| 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". |
| (blank) | Drain: Semi-auto drain + manual 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 GAF400N10W Is Used
CNC spindle air
Feed a 3/8in line to a CNC spindle air curtain or tool changer. The 5 um element keeps fine abrasive dust away from precision bearings and seals.
Pneumatic test bench
Protect a lab test rig with multiple valves and gauges. The 100 cc bowl handles condensate from a full shift, and the semi-auto drain purges automatically.
Machine tool way covers
Supply clean air to way-cover air knives on a milling machine. The 640 g body mounts on the frame, and the 5 um element prevents scale from blocking small nozzles.
Is the Airtac GAF Filter GAF400N10W the Right Filter?
Choose the GAF400 body when you need 3/8in or 1/2in ports and a 100 cc condensate bowl; step up to a GAF500 for a 3/4in port and 108 cc bowl, or down to a GAF300 for 1/4in to 1/2in ports with a 60 cc bowl. The nylon bowl suits applications where you prefer its material properties, while the included bracket simplifies panel mounting. The 5 um element traps finer particles than the standard 40 um, 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 GAF400's 100 cc drain bowl holds about 1.67x the condensate of a GAF300's 60 cc bowl, meaning fewer manual drain checks.
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 GAF400N10W FAQ
The GAF400N10W is a filter-only unit with a 5 um HDPE element, 3/8in PT ports, and a 100 cc nylon bowl. It weighs 640 g and has a working pressure range of 0.15-0.9 MPa (20-130 psi), a proof pressure of 1.5 MPa (215 psi), and a temperature range of -5 to 70 C. The flow curve is plotted to 8000 L/min.
The GAF400N10W ships with both a semi-auto drain and a manual drain. The semi-auto drain purges condensate automatically when the air pressure drops, while the manual drain lets you empty the bowl on demand. This gives you redundant draining options for 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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