Airtac GAFR Adjustable Filter Regulator GAFR40015ALN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015ALN 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 40 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 grade40 µm
- Bowl materialPC
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015ALN
The GAFR40015ALN is a filter and pressure regulator combined into a single body, eliminating the need for separate GAF and GAR units. This 1/2in port model handles a lower pressure range of 0.15-0.4 MPa (20-58 psi) with a standard 40 um filtering element.
Its automatic drain clears condensate from the 100 cc bowl without manual intervention, making it suitable for wet or unattended lines. The unit weighs 880 g, and its balanced regulator mechanism helps maintain a steady outlet pressure as supply varies.
Airtac GAFR Adjustable Filter Regulator GAFR40015ALN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015ALN |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 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. No gauge is supplied with this model — the gauge connection on a GAFR400 is 1/4" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR40015ALN
| 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. |
| N | No pressure gauge; 1/4" gauge connection. |
| (blank) | Filtering grade 40 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 GAFR40015ALN Is Used
Precision pressure setting
Set a stable 0.3 MPa supply for a sensitive pneumatic positioner or a precision grinding fixture where consistent low pressure is critical.
Medium machine header
Feed a 1/2in header on a packaging machine or assembly station, filtering supply air and holding a regulated low pressure for multiple small cylinders.
Laboratory air bench
Provide filtered, regulated air at a fixed low pressure for test fixtures or air bearings in a lab environment where the automatic drain minimizes maintenance.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015ALN the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow applications where its 7000 L/min flow curve at 0.7 MPa inlet provides ample capacity. The automatic drain (A) suits wet or remote installations, while the included mounting bracket simplifies panel fitting. The lower-pressure type (L) is ideal for sensitive circuits, but verify 0.4 MPa is sufficient for your actuators. The no-gauge option (N) means the 1/4in gauge connection is available if you add one later. For lines needing oil downstream, order the GAFC400-15 combination instead. 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 GAFR40015ALN FAQ
This filter & regulator has a 1/2in port, working pressure range of 0.15-0.4 MPa (20-58 psi), max pressure of 1.0 MPa (145 psi), proof pressure of 1.5 MPa (215 psi), and operates from -5 to 70 C. It features a 100 cc drain bowl, weighs 880 g, and has a 40 um element.
The 'L' type code limits the regulated output to 0.4 MPa for circuits that need a low, stable pressure. The 'N' after the port means no gauge is supplied; the 1/4in gauge connection is available if you choose to add one for visual monitoring.
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Covers non-human-caused product damage.
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