Airtac GAFR Adjustable Filter Regulator GAFR40010ALK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010ALK 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 gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40010ALK
The GAFR40010ALK is a filter and pressure regulator combined in a single body, so it cleans incoming air and delivers a steady outlet pressure without needing separate components. This 3/8in version uses a 40 um element and an automatic drain, with a 100 cc condensate bowl and a total mass of 880 g.
Its lower-pressure regulator is set for 0.15-0.4 MPa (20-58 psi), while the unit handles up to 1.0 MPa (145 psi) maximum supply. The circular gauge with clip and magnifier shows the set pressure on an MPa/psi scale, and the pressed-in self-locking knob resists drift from vibration.
Airtac GAFR Adjustable Filter Regulator GAFR40010ALK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010ALK |
|---|---|
| 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. 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 GAFR40010ALK
| 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. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
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 GAFR40010ALK Is Used
Precision valve control
Feed a bank of precision pneumatic valves that require a stable, low supply pressure. The balanced regulator holds the outlet steady as inlet pressure varies, and the 40 um element traps particles before they reach sensitive spools.
Unattended machine station
Mount this unit on a machine station where operators cannot manually drain the bowl. The automatic drain clears condensate without intervention, and the 100 cc bowl provides ample capacity between cycles.
Compact panel build
Install the GAFR40010ALK on a control panel where space is tight. The single-body design replaces separate filter and regulator units, reducing joints and rail width, while the included bracket secures the 880 g unit firmly.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010ALK the Right Air-Prep Unit?
Choose the GAFR400 body for a 3/8in port and a 100 cc drain bowl, which holds roughly 1.7 times the condensate of the GAFR300's 60 cc bowl. The L type limits regulation to 0.15-0.4 MPa (20-58 psi), so confirm your line never needs more than 0.4 MPa; the automatic drain suits unattended operation, and the included bracket simplifies panel mounting. The reverse-flow (reflux) valve is fitted as an ordering difference, and the PT thread gives an MPa/psi gauge scale; if oil is needed downstream, order the matching GAFC400-10 combination instead. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above the 0.4 MPa top of the regulated 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 GAFR40010ALK FAQ
The GAFR40010ALK is a filter & regulator with a 3/8in port, a 100 cc drain bowl, and a weight of 880 g. Its lower-pressure type regulates from 0.15-0.4 MPa (20-58 psi), with a maximum supply pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The operating temperature range is -5 to 70 C, and it uses a 40 um element.
The L type limits the regulated outlet pressure to a maximum of 0.4 MPa (58 psi), compared to the standard type's 0.9 MPa (130 psi) ceiling. This suits applications that only need low, stable pressure; if your machine may require more than 0.4 MPa, the L type is not the right choice.
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