Airtac GAFR Adjustable Filter Regulator GAFR400C10ASK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C10ASK 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 - 0.9 MPa (20 - 130 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size3/8"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C10ASK
The GAFR400C10ASK is a filter and pressure regulator combined into a single body, eliminating the need for separate units. It conditions incoming air by spinning it to separate liquid water and solid particles before regulating the outlet to a steady pressure. This model features a 3/8" port, a metal bowl, and a 40 um element, with a working range of 0.15-0.9 MPa (20-130 psi).
This unit weighs 880 g and has a 100 cc condensate bowl, indicating its size class for medium-duty applications. The balanced regulator mechanism holds the set pressure steady as supply varies, and the pressed-in self-locking knob resists drift from vibration. It is a single unit, not a train of parts, and does not include a lubricator.
Airtac GAFR Adjustable Filter Regulator GAFR400C10ASK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C10ASK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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. 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 GAFR400C10ASK
| 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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 GAFR400C10ASK Is Used
Machine Tool Air Supply
Feed a steady 0.15-0.9 MPa supply to a CNC machine's pneumatic clamping fixtures. The filter removes water and solids from the line, while the regulator holds the set pressure for consistent clamping force.
Assembly Line Automation
Use this unit to condition air for a bank of pneumatic actuators on an assembly station. The 100 cc metal bowl and automatic drain handle condensate without manual intervention, and the 3/8" port suits the flow demand.
Test Bench Instrument Air
Provide clean, regulated air to a pneumatic test fixture. The 40 um element protects sensitive valves, while the integrated gauge allows operators to verify the set pressure directly on the unit.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C10ASK the Right Air-Prep Unit?
Choose this GAFR400 body for 3/8" porting in a medium-flow line; it is the step up from the GAFR300's 3500 L/min envelope to 7000 L/min at 0.7 MPa inlet. The metal bowl is a build choice for the environment, while the automatic drain suits unattended operation. The standard pressure type covers 0.15-0.9 MPa, and the included bracket simplifies mounting. The fitted gauge reads in MPa/psi, and the 40 um element is the standard grade. The reverse-flow valve is fitted as an ordering difference. If oil is needed downstream, order the matching GAFC400-10 combination. With a 1.0 MPa max supply, there is about 0.1 MPa above the 0.9 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 GAFR400C10ASK FAQ
The GAFR400C10ASK is a filter & regulator with a 3/8" port. Its pressure range is 0.15-0.9 MPa (20-130 psi), with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates in temperatures from -5 to 70 C and has a 100 cc drain bowl. The unit weighs 880 g.
The 'K' indicates a reverse-flow (reflux) valve is attached to the unit. It is an ordering difference from models without it. The catalogue does not detail its function in our data, so consult the full datasheet for its operation.
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