Airtac GAF Filter GAF500N20AJW
The AirTAC Airtac GAF Filter GAF500N20AJW 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 3/4" ports and a 108 cc drain bowl. It is a filter only — it does not regulate or set pressure.
- TypeAir filter
- Port size3/4"
- Filtering grade5 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialNylon
- Drainautomatic
- Drain bowl108 cc
- Weight680 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 GAF500N20AJW
The GAF500N20AJW is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 108 cc nylon bowl, while the 5 um HDPE element traps fine grain. It protects downstream valves and tools but does not regulate pressure or add a gauge.
This model uses a 3/4in port and weighs 680 g, placing it in the upper size class where a proper panel mount is needed rather than tubing support. The automatic drain clears condensate without manual attention, and the 5 um element suits precision applications at the cost of more frequent element service.
Airtac GAF Filter GAF500N20AJW Technical Specifications
| Model | Airtac GAF Filter GAF500N20AJW |
|---|---|
| Series | GAF500 air filter |
| Port size | 3/4" (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 | 108 cc |
| Element | HDPE filter core |
| Weight | 680 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 GAFR500 filter-regulator.
Model Code: Airtac GAF Filter GAF500N20AJW
| GAF500 | GA500 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). |
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| 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 GAFR500-20 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 | GAF500 · 3/4" · curve to 9000 L/min |
|---|---|
| One size down | GAF400 |
| One size up | GAF600 (curve to 12000 L/min) |
| Add regulation | GAFR500-20 (filter + regulator) |
Where the Airtac GAF Filter GAF500N20AJW Is Used
Machine tool header
Feed a 3/4in header supplying multiple pneumatic cylinders on a machining center, where the 5 um element protects precision valves from fine wear particles.
Instrument air branch
Protect sensitive instrumentation or flow-control loops on a packaging line, using the automatic drain to handle condensate without scheduled manual checks.
Multi-station assembly
Supply a multi-station conveyor system where the 108 cc bowl and 9000 L/min envelope support several actuators, with the nylon bowl suited for general industrial environments.
Is the Airtac GAF Filter GAF500N20AJW the Right Filter?
Choose the GAF500 body when your line needs 3/4in ports and a 108 cc condensate bowl, stepping up from the GAF400's 100 cc bowl for longer intervals between drains. The nylon bowl is a build choice with the same common spec as PC or metal, so confirm compatibility for aggressive surroundings. This model has the automatic drain (A) for unattended or wet lines, omits the bracket (J) for panel mounting, and uses the 5 um element (W) for finer filtration. The PT thread standard must match your fittings. If you also need a set pressure, use the matching GAFR500-20 filter-regulator instead. The proof pressure of 1.5 MPa against the 0.9 MPa working top gives about a 1.67x margin, a burst-test proof not permission to exceed the rated range.
Quick checklist
- ✓ Body size for your peak flow (3/4" 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 GAFR500
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 108 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 680 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 GAFR500-20 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF500N20AJW FAQ
This filter-only unit has a 5 um filtering grade, 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. It has a 108 cc drain bowl and weighs 680 g, with a flow curve plotted to 9000 L/min. The nylon bowl and automatic drain are fitted, and the port thread is PT.
The automatic drain expels accumulated condensate from the 108 cc bowl without manual intervention, making it suitable for unattended operation or wet compressed-air lines. This model has the automatic drain, so you do not need to check the bowl manually, unlike the semi-auto plus manual drain version.
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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