Airtac GAF Filter GAF50020
The AirTAC Airtac GAF Filter GAF50020 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 materialPC
- 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 GAF50020
The GAF50020 is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 108 cc drain bowl, while the 40 um HDPE core traps fine grain. It protects downstream valves and tools from contamination, but it does not regulate pressure and has no gauge.
This 3/4in model weighs 680 g, placing it in the GAF500 size class. Its flow curve is plotted to 9000 L/min, which is 1.5x the GAF400's 8000 L/min envelope, so it suits larger branch lines feeding multiple actuators.
Airtac GAF Filter GAF50020 Technical Specifications
| Model | Airtac GAF Filter GAF50020 |
|---|---|
| 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 | PC |
| 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 GAF50020
| GAF500 | GA500 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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 GAF50020 Is Used
Machine Tool Header
Feed a 3/4in header supplying multiple pneumatic cylinders on a machining center, where the 40 um element and 108 cc bowl handle moderate condensate loads.
Conveyor Line Protection
Protect a bank of air cylinders on a long conveyor system, with the semi-auto drain letting operators purge the bowl during scheduled line stops.
Assembly Station Feed
Supply clean air to a multi-station assembly fixture with several valves, using the 680 g body's stable panel mount and the 9000 L/min sizing envelope.
Is the Airtac GAF Filter GAF50020 the Right Filter?
Choose the GAF50020 for a 3/4in line where you need 40 um filtration and the standard semi-auto plus manual drain. The included mounting bracket supports the 680 g body, so do not hang it from the tubing. If you need finer filtration, select the W option for a 5 um element, or choose the A option for an automatic drain on wet lines. The port thread is PT; G and NPT are also available. For pressure control, use the matching GAFR500-20 filter-regulator instead. The GAF500's 108 cc bowl holds about 1.7x the condensate of the GAF400's 100 cc bowl, meaning fewer manual drain checks.
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 GAF50020 FAQ
The GAF50020 is a 3/4in air filter with a 40 um HDPE element. Its working pressure range is 0.15-0.9 MPa (20-130 psi), with a proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C. The drain bowl holds 108 cc and the unit weighs 680 g.
The GAF50020 is a filter only; it cleans air but does not control pressure. The GAFR500-20 combines the same filter with a built-in regulator, so it can also set a downstream pressure. If you need pressure control, choose the GAFR500-20 or add a separate GAR regulator.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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