
The AirTAC Airtac GAF Filter GAF40010AJW 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 3/8" ports and a 100 cc drain bowl. It is a filter only — it does not regulate or set pressure.
The GAF40010AJW is a genuine AirTAC air filter that uses a diversion structure to spin incoming air, throwing liquid water and solid particles into its 100 cc drain bowl while the 5 um HDPE element traps fine grain. It is a filter only - there is no regulator, no pressure gauge and no lubricator, so it cleans the air but never sets or controls pressure.
This 3/8in model weighs 640 g and its flow curve is plotted to 8000 L/min. The automatic drain (A) releases condensate without manual attention, and the J code means no mounting bracket is included, so plan for a panel mount or an existing bracket. The PC bowl and 5 um element suit general-purpose lines where finer filtration protects precision valves downstream.
| Model | Airtac GAF Filter GAF40010AJW |
|---|---|
| Series | GAF400 air filter |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | PC |
| 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 | 100 cc |
| Element | HDPE filter core |
| Weight | 640 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 GAFR400 filter-regulator.
| GAF400 | GA400 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). |
| 10 | Port size 3/8". This body offers 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 GAFR400-10 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 | GAF400 · 3/8" · curve to 8000 L/min |
|---|---|
| One size down | GAF300 |
| One size up | GAF500 (curve to 9000 L/min) |
| Add regulation | GAFR400-10 (filter + regulator) |
Feed a 3/8in line to a CNC tool changer or spindle air system where the 5 um element stops fine abrasive dust from scoring precision slides and valves.
Mount on a panel feeding solenoid valves for a packaging conveyor; the automatic drain handles condensate from humid plant air without daily service.
Protect sensitive pneumatic gauges and sensors on a test bench with 5 um filtration, keeping water droplets and rust scale out of the instrument loop.
Choose the GAF400 body when a 3/8in port and a 100 cc drain bowl match your flow needs; it sits between the GAF300 (60 cc bowl, curve to 6000 L/min) and the GAF500 (108 cc bowl, curve to 9000 L/min). The automatic drain (A) suits unattended or wet lines, while a blank drain would give both semi-auto and manual drains - this model has the automatic type. The J code omits the bracket, the W element is 5 um instead of 40 um, and PT is the port thread standard. If you also need a set pressure, use the matching GAFR400-10 filter-regulator instead of this plain filter. The 100 cc bowl holds about 1.67x the condensate of the GAF300's 60 cc bowl, meaning fewer drain checks on this body.
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 GAFR400-10 filter-regulator as your air-prep needs grow.
Filtering grade is 5 um. 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 drain bowl holds 100 cc and the unit weighs 640 g. It has a 3/8in PT port and an automatic drain.
The J code means the mounting bracket is NOT included. A standard GAF400 ships with a bracket, but the J option omits it for installations that use a panel mount or an existing bracket. This model also has an automatic drain (A) and a 5 um element (W).
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.