Airtac GAFR Adjustable Filter Regulator GAFR40010ALN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010ALN 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 3/8" 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 size3/8"
- 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 GAFR40010ALN
The GAFR40010ALN is a filter and regulator combined into a single body, so it cleans incoming air and locks a steady outlet pressure without needing a separate filter plus regulator pair. This 3/8in unit carries a 100 cc condensate bowl and weighs 880 g, placing it in the mid-size class for machine-level air preparation.
Its lower-pressure regulator spans 0.15-0.4 MPa (20-58 psi), with a 40 um filter element and an automatic drain that clears water and solids without manual attention. The balanced mechanism holds the set pressure as supply varies, while the pressed-in self-locking knob resists drift from vibration.
Airtac GAFR Adjustable Filter Regulator GAFR40010ALN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010ALN |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 3/8" (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 GAFR40010ALN
| 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). |
| 10 | Port size 3/8". 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 GAFC400-10 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 · 3/8" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-10 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR40010ALN Is Used
Precision valve control
Feed a bank of precision pneumatic valves that require a stable, lower regulated pressure. The 0.15-0.4 MPa range suits delicate actuation, and the automatic drain keeps condensate from reaching sensitive components.
Machine tool air prep
Mount on a machining center's air line to filter supply and set a consistent lower pressure for clamping fixtures. The 100 cc bowl handles typical shift-long condensate, and the included bracket simplifies panel mounting.
Test bench supply
Use on a pneumatic test bench where a clean, regulated lower pressure is needed for calibration fixtures. The 40 um element traps particles, while the automatic drain reduces maintenance during long test cycles.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010ALN the Right Air-Prep Unit?
Choose the GAFR400 body when 3/8in ports and a 100 cc drain bowl match your flow needs; it is one step above the GAFR300 (60 cc bowl, 3500 L/min plotted at 0.7 MPa inlet) and one below the GAFR500 (108 cc bowl, 8000 L/min at 0.7 MPa inlet). The PC bowl suits general dry indoor lines, while the automatic drain handles wet or unattended systems without manual draining. This model includes the mounting bracket, omits the gauge (its 1/4in gauge connection is ready for a field-installed unit), and uses the standard 40 um element with PT threads. If the line needs oil downstream, order the matching GAFC400-10 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 (3/8" 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 GAFC400-10 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR40010ALN FAQ
The GAFR40010ALN is a filter & regulator with a 3/8in port, working pressure range 0.15-0.4 MPa (20-58 psi), maximum pressure 1.0 MPa (145 psi), and proof pressure 1.5 MPa (215 psi). Temperature range is -5 to 70 C, drain bowl capacity is 100 cc, and the unit weighs 880 g. It has a 40 um element, automatic drain, and no gauge.
The 'L' code sets the lower pressure range of 0.15-0.4 MPa, intended for applications needing a reduced regulated output. The 'N' after the port code means no gauge is supplied; the 1/4in gauge connection is available if you add one later. This combination suits fixed low-pressure setups where a gauge is not required.
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