Airtac GAF Filter GAF400N15
The AirTAC Airtac GAF Filter GAF400N15 is a genuine compressed-air filter. Its diversion structure spins the air to separate liquid water and trap solid particles down to 40 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 grade40 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 GAF400N15
The GAF400N15 is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 100 cc nylon drain bowl, while the 40 um HDPE element traps fine grain. It cleans the air for downstream valves and cylinders; it does not regulate pressure and carries no gauge.
This 1/2in-port model weighs 640 g and belongs to the GAF400 size class, which is rated for a working range of 0.15-0.9 MPa (20-130 psi) and proof pressure of 1.5 MPa (215 psi). The nylon bowl and included mounting bracket make it a ready-to-fit choice for a machine sub-header feeding several actuators.
Airtac GAF Filter GAF400N15 Technical Specifications
| Model | Airtac GAF Filter GAF400N15 |
|---|---|
| Series | GAF400 air filter |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 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 GAF400N15
| 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). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| (blank) | Mounting bracket included. |
| (blank) | Filtering grade 40 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 GAF400N15 Is Used
Machine sub-header
Feed a 1/2in manifold serving several pneumatic cylinders on a single station, keeping water and scale out of the valves.
Assembly line tooling
Protect air tools and work-holding fixtures on a medium-duty assembly line where 40 um filtration is sufficient.
Paint booth air prep
Clean compressed air before it reaches spray equipment, removing condensate that could spoil a finish.
Is the Airtac GAF Filter GAF400N15 the Right Filter?
Choose the GAF400 when 1/2in ports and a 100 cc condensate bowl match your line's duty; step down to a GAF300 (60 cc bowl, 6000 L/min curve) for lighter branches, or up to a GAF500 (108 cc bowl, 9000 L/min curve) for a larger header. The nylon bowl is a build choice with the same common spec as PC or metal, so confirm compatibility for aggressive surroundings. This model ships with the semi-auto and manual drains both fitted, the mounting bracket included, a 40 um element, and PT port threads; select the A option for an automatic drain, J to omit the bracket, W for a 5 um element, or G/T for different thread standards. If the line also needs a set pressure, use the matching GAFR400-15 filter-regulator instead. The GAF400's 100 cc bowl holds about 1.67x the condensate of a GAF300's 60 cc bowl, so it needs less frequent draining.
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 GAF400N15 FAQ
It is a 40 um air filter with a 1/2in port, a 100 cc nylon drain bowl, and a weight of 640 g. Working pressure range 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 flow curve is plotted to 8000 L/min as a sizing envelope.
The nylon bowl is a material choice with the same pressure and temperature ratings as PC or metal; confirm compatibility for aggressive environments. This model includes both a semi-auto drain and a manual drain, so you can either let it purge automatically or open it manually.
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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