
The AirTAC Airtac GAF Filter GAF300N15AJW 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 1/2" ports and a 60 cc drain bowl. It is a filter only — it does not regulate or set pressure.
The GAF300N15AJW is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 60 cc nylon bowl, while the 5 um HDPE core traps fine grain. It cleans the air for downstream components; it does not regulate pressure or carry a gauge.
This 1/2in-port model weighs 360 g and suits a GAF300 size class, which needs a proper panel mount rather than support from the tubing. The automatic drain clears condensate without manual attention, and the 5 um element protects precision valves from finer particles than a standard 40 um filter.
| Model | Airtac GAF Filter GAF300N15AJW |
|---|---|
| Series | GAF300 air filter |
| Port size | 1/2" (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 | 60 cc |
| Element | HDPE filter core |
| Weight | 360 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 GAFR300 filter-regulator.
| GAF300 | GA300 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). |
| 15 | Port size 1/2". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| 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 GAFR300-15 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 | GAF300 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAF200 |
| One size up | GAF400 (curve to 8000 L/min) |
| Add regulation | GAFR300-15 (filter + regulator) |
Feed a bank of precision solenoid valves on a pick-and-place machine, where the 5 um element stops fine abrasive grain from jamming spools.
Protect a CNC tool changer's pneumatic cylinders from water slugs, with the automatic drain handling condensate without daily service.
Supply a clean-air header for multiple assembly stations, where the 1/2in port and 6000 L/min envelope support several tools at once.
Choose the GAF300 body for 1/2in ports where a GAF200 at 1/4in would be undersized; the 300's 60 cc bowl holds 2.4x the condensate of the 200's 25 cc bowl. The nylon bowl is a build choice, not a performance upgrade, so confirm compatibility with your environment. This model has the automatic drain for wet or unattended lines, omits the bracket for panel mounting, and uses the 5 um element for finer filtration. The PT thread standard must match your fittings; if you need a set pressure, use the matching GAFR300-15 filter-regulator instead. The proof pressure of 1.5 MPa against the 0.9 MPa working maximum gives a 1.67x safety margin for burst testing, not for operation above the rated range.
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 GAFR300-15 filter-regulator as your air-prep needs grow.
This filter-only unit has a 5 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. Its nylon drain bowl holds 60 cc, and the unit weighs 360 g with a flow curve plotted to 6000 L/min.
The A code means an automatic drain that expels accumulated condensate without manual intervention, ideal for wet lines or unattended operation. This model also omits the mounting bracket (J), so you must provide a panel mount or use an existing bracket.
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.