Airtac GAF Filter GAF500N20
The AirTAC Airtac GAF Filter GAF500N20 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 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 grade40 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialNylon
- Drainsemi-auto + manual
- 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 GAF500N20
The GAF500N20 is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 108 cc nylon drain bowl, while the 40 um HDPE core traps fine grain. It cleans the air for downstream components but does not regulate pressure or add a gauge.
This 3/4in model weighs 680 g and its flow curve is plotted to 9000 L/min, placing it in the upper mid-size class. The nylon bowl and semi-auto plus manual drain give you a clear view of condensate while allowing both automatic purging and a manual backup valve.
Airtac GAF Filter GAF500N20 Technical Specifications
| Model | Airtac GAF Filter GAF500N20 |
|---|---|
| Series | GAF500 air filter |
| Port size | 3/4" (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 | 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 GAF500N20
| 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". |
| (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 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 GAF500N20 Is Used
Machine tool coolant lines
Protect solenoid valves and cylinders on a CNC machine from water and scale before they reach precision ports.
Assembly station manifolds
Feed a 3/4in manifold serving multiple pneumatic screwdrivers and clamps on a production line.
Paint booth air prep
Remove condensed water and rust particles from the air feeding spray guns and actuators in a finishing area.
Is the Airtac GAF Filter GAF500N20 the Right Filter?
Choose the GAF500 for 3/4in lines where the 108 cc bowl and 9000 L/min envelope suit a main branch feeding several tools. The nylon bowl is a build choice with the same common spec as PC or metal, so confirm compatibility for aggressive surroundings. This unit ships with the mounting bracket, a 40 um element, and PT port threads; the semi-auto drain purges when pressure drops while the manual drain gives you direct control. For a set pressure, use the matching GAFR500-20 filter-regulator instead. The 9000 L/min curve is 1.5x the GAF400's 8000 L/min envelope, so this body steps up capacity for larger branches.
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 GAF500N20 FAQ
This filter-only unit has a 40 um HDPE element, 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 nylon drain bowl holds 108 cc and the unit weighs 680 g, with a flow curve plotted to 9000 L/min.
The semi-auto drain opens automatically when air pressure is removed, dumping accumulated condensate. The manual drain is a separate valve you can open at any time for immediate draining. Both are fitted on this GAF500N20, giving you automatic purging plus a manual backup.
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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