Airtac GAFR Adjustable Filter Regulator GAFR40015ALW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015ALW is a genuine two-in-one filter & regulator — a diversion-type water/particulate filter and a balanced pressure regulator built into ONE body. It has 1/2" ports, a 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialPC
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015ALW
The GAFR40015ALW is a filter and regulator combined into a single body, saving panel space and reducing potential leak points compared to separate units. It handles a 1/2in port and weighs 880 g, placing it in the mid-size class for machine headers and multi-station lines.
This model operates in the lower pressure band of 0.15-0.4 MPa (20-58 psi) and comes with a 5 um element for finer filtration. The automatic drain clears the 100 cc condensate bowl without manual attention, and the circular gauge with MPa/psi scale is fitted for direct reading.
Airtac GAFR Adjustable Filter Regulator GAFR40015ALW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015ALW |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | PC |
| Drain type | Automatic drain |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 100 cc |
| Bracket | Included |
| Weight | 880 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR40015ALW
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
The filter and the regulator are ONE body here — there is no separate GAF filter or GAR regulator part to assemble. Need lubrication downstream too? Add a lubricator by ordering the matching GAFC400-15 F.R.L. combination instead.
Size Class & Flow Envelope
- GAFR2001/8"-1/4" · 2000 L/min
- GAFR3001/4"-1/2" · 3500 L/min
- GAFR4003/8"-1/2" · 7000 L/min
- GAFR5003/4" · 8000 L/min
- GAFR6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue at 0.7 MPa inlet pressure — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. Outlet pressure falls as flow rises, so size a body with headroom above your peak demand.
| This model | GAFR400 · 1/2" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-15 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR40015ALW Is Used
Precision valve control
Feed a bank of precision pneumatic valves that require clean, regulated air at a stable lower pressure. The 5 um element removes fine particles that could clog or wear valve internals.
Machine tool coolant lines
Supply a machine tool's air-operated coolant pump with filtered air at a consistent 0.15-0.4 MPa. The automatic drain handles condensate from wet shop air without manual checks.
Multi-station assembly line
Protect a multi-station assembly line's actuators and grippers. The 1/2in port supports moderate flow to several stations, while the 100 cc bowl reduces maintenance frequency.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015ALW the Right Air-Prep Unit?
Choose the GAFR400 body when you need a 1/2in port and a 100 cc drain bowl, a step up from the GAFR300's 60 cc bowl for longer intervals between drains. The lower pressure type (L) tops out at 0.4 MPa, so confirm your system never needs more than that; if it does, select the standard S type instead. The 5 um element traps finer particles than the standard 40 um, making it suitable for precision valves, though it will require more frequent servicing. The automatic drain (A) is ideal for wet or unattended lines, while the included mounting bracket simplifies installation. The PC bowl and PT threads with MPa/psi gauge scale match standard shop air setups. If oil lubrication is needed downstream, order the matching GAFC400-15 combination instead. The 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range.
Quick checklist
- ✓ Body size for your peak flow (1/2" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Bracket kept or removed (J); add a lubricator = GAFC
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, gauge/knob accessible.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure with the pressed-in self-locking knob; pull to adjust, press to lock.
- check Drain condensate before the 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 880 g unit on its bracket, not on the tubing.
This is a filter and regulator only — it delivers filtered, pressure-set air with no added oil. If a downstream tool needs lubrication, add a separate lubricator or order the GAFC400-15 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR40015ALW FAQ
The GAFR40015ALW is a filter & regulator with a 1/2in port, pressure range 0.15-0.4 MPa (20-58 psi), max pressure 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), temperature range -5 to 70 C, 100 cc drain bowl, and 880 g weight. It has a 5 um element and an automatic drain.
The 'L' in the model code indicates the lower pressure type, regulating from 0.15 to 0.4 MPa (20-58 psi) instead of the standard 0.15-0.9 MPa. This is for applications that only need a modest, stable pressure. If your system might require more than 0.4 MPa, this is not the correct part.
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