
The AirTAC Airtac GAF Filter GAF50020AW 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 GAF50020AW is a genuine AirTAC air filter that spins incoming air to throw liquid water and solid particles into its 108 cc drain bowl, while the 5 um HDPE element traps fine grain. It is a filter only, with no regulator, no pressure gauge and no lubricator, so it cleans the air but never sets or holds pressure.
This 3/4in port model weighs 680 g and carries a 5 um element for finer filtration, making it a substantial unit that needs a proper panel or frame mount rather than support from the tubing. Its automatic drain clears condensate without manual attention, and the working range is 0.15-0.9 MPa (20-130 psi) with a proof pressure of 1.5 MPa (215 psi).
| Model | Airtac GAF Filter GAF50020AW |
|---|---|
| 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 | PC |
| Drain type | Automatic 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. |
|---|---|
| (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". |
| A | Drain: Automatic 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 line to a CNC machine's solenoid bank, where the 5 um element stops fine abrasive dust from scoring valve spools and ruining precision finishes.
Mount this filter at the takeoff to a multi-station assembly line, using the automatic drain to shed condensate overnight so morning startup is dry and trouble-free.
Protect a bank of pneumatic sensors and transducers with 5 um filtration, keeping fine particulates away from delicate orifices and extending their service life.
Choose the GAF50020AW when your line needs 3/4in porting and a 5 um element to protect precision valves or instruments, while the automatic drain suits unattended or wet lines. The PC bowl is a build choice, not a performance upgrade, so confirm compatibility for aggressive surroundings, and the included bracket simplifies mounting. If the line also needs a set pressure, use the matching GAFR500-20 filter-regulator instead, because this GAF does not regulate. The 108 cc drain bowl holds about 4.3x the condensate of the GAF300's 60 cc bowl, so you will drain it far less often.
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 GAF50020AW is a filter-only unit with a 5 um HDPE element, a 3/4in PT port, a 108 cc PC drain bowl and a weight of 680 g. Its 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 9000 L/min, and it has an automatic drain.
The A code means an automatic drain that expels condensate without manual intervention, ideal for wet or unattended lines. Unlike the semi-auto plus manual drain on blank models, you do not need to open a valve by hand, so the GAF50020AW keeps running with less maintenance attention.
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.