Airtac GAFR Adjustable Filter Regulator GAFR40010ALNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010ALNK 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 GAFR40010ALNK
The GAFR40010ALNK is a filter & regulator in a single body, combining a cyclone-style filter and a balanced pressure regulator. It handles 3/8in ports and delivers a lower pressure range of 0.15-0.4 MPa (20-58 psi), with a 40 um element for standard filtration.
This 880 g unit with a 100 cc condensate bowl is built for compact machine installations. The automatic drain clears water and solids without manual attention, while the reverse-flow valve is fitted as an ordering option. No lubricator is included or available on this model.
Airtac GAFR Adjustable Filter Regulator GAFR40010ALNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010ALNK |
|---|---|
| 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 GAFR40010ALNK
| 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. |
| 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 GAFR40010ALNK Is Used
Precision jig clamping
Feed a 3/8in line to a precision clamping fixture where a steady 0.3 MPa is needed for consistent part holding. The balanced regulator maintains set pressure as shop supply fluctuates.
Machine tool coolant valves
Supply filtered air to pneumatic coolant valves on a CNC machine. The automatic drain clears condensate without stopping production, and the lower pressure range protects sensitive valve diaphragms.
Assembly station air prep
Mount this unit at a bench assembly station to filter and regulate air for hand tools and small cylinders. The 100 cc bowl handles a full shift of condensate in humid conditions.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010ALNK the Right Air-Prep Unit?
Choose the GAFR400 body for 3/8in or 1/2in port lines, where the 100 cc drain bowl and 7000 L/min flow envelope (at 0.7 MPa inlet) suit medium-sized actuators or small machine headers. The PC bowl is the standard build, and the automatic drain (A) is ideal for unattended operation. The L-type regulator tops out at 0.4 MPa, so confirm your system never needs more than that. The bracket is included, no gauge is fitted (the 1/4in gauge connection is ready for one), and the 40 um element handles general workshop air. The K code adds the reverse-flow valve as a specified option. 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 regulated ceiling.
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 GAFR40010ALNK FAQ
This filter & regulator has a 3/8in port, a working pressure range of 0.15-0.4 MPa (20-58 psi), a maximum pressure of 1.0 MPa (145 psi), and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, has a 100 cc drain bowl, and weighs 880 g. The 40 um element and automatic drain are standard on this model.
The K code indicates the reverse-flow (reflux) valve is fitted. This is an ordering difference from models without the K code. The valve is drawn as a separate pneumatic symbol in the catalogue, and its detailed function is covered in a separate section of the documentation.
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Covers non-human-caused product damage.
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