
The AirTAC Airtac GAF Filter GAF500C20W 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.
The GAF500C20W is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 108 cc metal bowl, while the 5 um HDPE element traps fine grain. It protects downstream valves and cylinders but does not regulate pressure or add lubrication.
This 3/4in model weighs 680 g and belongs to the GAF500 size class, which is rated for working pressures of 0.15-0.9 MPa (20-130 psi). The metal bowl suits demanding environments, and the included mounting bracket supports the unit's mass properly rather than relying on tubing.
| Model | Airtac GAF Filter GAF500C20W |
|---|---|
| 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 | Metal |
| 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.
| GAF500 | GA500 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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. |
| 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.
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) |
Feed a 3/4in header serving multiple machining centers with filtered air, where the 108 cc bowl handles condensate from a long pipe run.
Protect a bank of pneumatic valves controlling a high-speed conveyor, with the 5 um element keeping fine wear particles away from spool surfaces.
Filter the air feeding robotic paint applicators, where water and solids would ruin finishes and the metal bowl resists cleaning agents.
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 metal bowl (C) is a build choice with the same common specifications as PC or nylon, so confirm compatibility for aggressive surroundings. This model ships with both semi-auto and manual drains, the included bracket, and a 5 um element for finer filtration; the PT thread standard matches your fittings. If the line also needs a set pressure, use the matching GAFR500-20 filter-regulator instead. The GAF500's 9000 L/min flow envelope is 1.5x the GAF400's 8000 L/min curve, giving you headroom to feed larger actuators.
Quick checklist
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.
The GAF500C20W is a filter-only unit with a 3/4in port, 5 um filtering grade, and a 108 cc metal drain bowl. It weighs 680 g and has a flow curve plotted to 9000 L/min. Working pressure 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. It uses an HDPE filter core and PT thread.
The metal bowl (C) is a build choice with the same pressure and temperature ratings as PC or nylon; no impact or chemical data is printed, so confirm compatibility for your environment. This model has both semi-auto and manual drains fitted, letting you manually purge condensate or rely on the semi-auto function during operation.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.