Airtac GAFR Adjustable Filter Regulator GAFR400C10ALN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C10ALN 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 materialMetal
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C10ALN
The GAFR400C10ALN is a genuine AirTAC filter and regulator combined into one body, with no lubricator section. It spins incoming air to separate liquid water and solid particles, then delivers a steady outlet pressure through a balanced regulator mechanism. This model uses a 3/8in port, a 100 cc metal condensate bowl, and a 40 um filter element.
Its lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), making it suitable for gentle or sensitive applications. The pressed-in self-locking knob resists drift from vibration, helping maintain the set pressure. At 880 g, this unit needs proper panel or frame mounting rather than support from the tubing.
Airtac GAFR Adjustable Filter Regulator GAFR400C10ALN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C10ALN |
|---|---|
| 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 | Metal |
| 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 GAFR400C10ALN
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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 GAFR400C10ALN Is Used
Precision pressure setting
Use the lower-pressure range to set a delicate 0.3 MPa supply for a small pneumatic clamp or a sensitive test fixture, where a standard regulator might deliver too much force.
Wet air lines
The automatic drain removes condensate without manual checks, making this unit a fit for a compressor room or a humid plant area where water accumulates quickly in the 100 cc bowl.
Panel-mounted stations
Mount this 880 g filter-regulator on a machine frame or control panel using the included bracket, feeding a single 3/8in line to a local actuator or a small valve manifold.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C10ALN the Right Air-Prep Unit?
Choose the GAFR400 body for a 3/8in port with a 100 cc drain bowl and a flow curve plotted to 7000 L/min at 0.7 MPa inlet. The metal bowl (C) suits demanding environments; confirm compatibility for aggressive surroundings. The automatic drain (A) handles wet or unattended lines, while the included bracket simplifies mounting. The L type tops out at 0.4 MPa, so verify your supply stays within this band. No gauge is fitted, but the 1/4in gauge connection allows adding one later. The 40 um element handles standard shop air; the W option upgrades to 5 um. PT threads pair with an MPa/psi gauge scale. If oil is needed downstream, order the matching GAFC400-10 combination instead. A 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 GAFR400C10ALN FAQ
This is a filter and regulator in one body. The pressure range is 0.15-0.4 MPa (20-58 psi), with a maximum supply of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C and must not freeze. The drain bowl holds 100 cc, and the unit weighs 880 g. It has a 3/8in port, a 40 um element, and an automatic drain.
The L code sets the regulated range to 0.15-0.4 MPa, which is about 44% of the standard type's ceiling, for applications that need gentle pressure. The N code means no gauge is supplied; the 1/4in gauge connection is there if you add one later. This model also has a metal bowl and an automatic drain.
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