Airtac GAFR Adjustable Filter Regulator GAFR40015ALJW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015ALJW 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 GAFR40015ALJW
The GAFR40015ALJW is a filter and regulator combined into a single body, eliminating the need for separate GAF and GAR units. This 1/2in version handles a lower pressure range of 0.15-0.4 MPa (20-58 psi) and uses a 5 um element for finer filtration.
Its 100 cc condensate bowl and automatic drain make it suitable for wet lines, while the 880 g weight and 1/2in port place it in the mid-size class. The circular gauge with MPa/psi scale is fitted, and the balanced regulator mechanism helps maintain a steady outlet as supply varies.
Airtac GAFR Adjustable Filter Regulator GAFR40015ALJW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015ALJW |
|---|---|
| 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 | Not included (J) |
| 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 GAFR40015ALJW
| 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| (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 GAFR40015ALJW Is Used
Precision valve control
Feed a bank of precision pneumatic valves on a small assembly station. The 5 um element protects sensitive valve internals, and the lower pressure range suits delicate actuation tasks.
Wet utility line
Supply a machine header from a wet plant air line. The automatic drain clears condensate continuously, and the 100 cc bowl provides ample capacity between cycles.
Test rig air supply
Provide stable low-pressure air to a laboratory test fixture. The balanced regulator holds the set pressure as shop supply fluctuates, and the gauge allows precise adjustment.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015ALJW the Right Air-Prep Unit?
Choose the GAFR400 body when you need 3/8in or 1/2in ports and a flow envelope plotted to 7000 L/min at 0.7 MPa inlet, stepping up from the GAFR300's 3500 L/min. This model has the lower-pressure (L) type, so confirm your system never needs more than 0.4 MPa (58 psi) output. The 5 um element traps finer particles than the standard 40 um, at the cost of more frequent service. The automatic drain (A) handles condensate without manual intervention, and the J code means no mounting bracket is included. The PT thread and MPa/psi gauge scale are standard. If oil is needed downstream, order the matching GAFC400-15 combination instead. Note that 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range, so plan your inlet pressure accordingly.
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 GAFR40015ALJW FAQ
The GAFR40015ALJW is a filter & regulator with a 1/2in port, working pressure 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, 5 um filter element, 100 cc drain bowl, and 880 g weight. It has an automatic drain, no bracket, and a fitted gauge.
The L type limits output to 0.4 MPa (58 psi) for applications requiring low, stable pressure. The J code means the mounting bracket is not included, so you must provide your own panel mount or existing bracket.
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