Airtac GAF Filter GAF400C15J
The AirTAC Airtac GAF Filter GAF400C15J 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 1/2" ports and a 100 cc drain bowl. It is a filter only — it does not regulate or set pressure.
- TypeAir filter
- Port size1/2"
- Filtering grade40 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialMetal
- Drainsemi-auto + manual
- Drain bowl100 cc
- Weight640 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 GAF400C15J
The GAF400C15J is a genuine AirTAC air filter that removes liquid water and solid particles from compressed air lines using a diversion structure that spins the air before the HDPE element traps fine grain. This metal-bowl version has no regulator, gauge, or lubricator - it cleans the air only, protecting downstream valves and cylinders.
This model has a 1/2in port, a 40 um filtering grade, and a 100 cc drain bowl. The metal bowl suits demanding environments, though compatibility for aggressive surroundings should be confirmed. The unit weighs 640 g and its flow curve is plotted to 8000 L/min for sizing reference.
Airtac GAF Filter GAF400C15J Technical Specifications
| Model | Airtac GAF Filter GAF400C15J |
|---|---|
| Series | GAF400 air filter |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | Metal |
| Drain type | Semi-auto drain + manual 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.
Model Code: Airtac GAF Filter GAF400C15J
| GAF400 | GA400 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). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| J | No bracket (J) — supplied without the mounting bracket. |
| (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 GAFR400-15 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 | GAF400 · 1/2" · curve to 8000 L/min |
|---|---|
| One size down | GAF300 |
| One size up | GAF500 (curve to 9000 L/min) |
| Add regulation | GAFR400-15 (filter + regulator) |
Where the Airtac GAF Filter GAF400C15J Is Used
Machine tool air prep
Feed a 1/2in line serving a CNC machine's pneumatic clamps and tool changers. The 40 um element and 100 cc bowl handle the water and grit common in shop compressors.
Assembly station header
Protect a bank of pneumatic screwdrivers and push cylinders on a workbench. The metal bowl resists knocks in a busy assembly area, and the manual drain gives operators control.
Test rig air supply
Supply clean air to a prototype test jig with multiple solenoid valves. The 8000 L/min envelope covers moderate simultaneous demand, and the filter-first position shields sensitive components.
Is the Airtac GAF Filter GAF400C15J the Right Filter?
Choose the GAF400 body for 3/8in or 1/2in lines where you need a 100 cc condensate bowl and a flow envelope to 8000 L/min. This J version omits the mounting bracket, so plan for panel mounting or use an existing bracket. The metal bowl (C) is a build choice; the semi-auto plus manual drain lets you empty the bowl manually or rely on the semi-auto function. The 40 um element handles general workshop air, while the PT thread matches standard local fittings. If you also need pressure control, step up to the GAFR400-15 filter-regulator instead. The GAF400's 100 cc bowl holds about 1.7x the condensate of the GAF300's 60 cc bowl, meaning fewer drain checks between services.
Quick checklist
- ✓ Body size for your peak flow (1/2" 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 GAFR400
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 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 640 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 GAFR400-15 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF400C15J FAQ
This is a filter only, with a 40 um HDPE element, working pressure 0.15-0.9 MPa (20-130 psi), proof pressure 1.5 MPa (215 psi), temperature range -5 to 70 C, 100 cc drain bowl, and weight 640 g. The flow curve is plotted to 8000 L/min.
The J code means the mounting bracket is not included, so you need a panel mount or your own bracket. The C code indicates a metal bowl, chosen for environments where impact resistance matters; confirm compatibility for aggressive chemicals since no specific data is published.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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