Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJK 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 GAFR400C10ASJK
The GAFR400C10ASJK is a filter and regulator combined into a single body, so it cleans the air and stabilizes the outlet pressure without needing separate parts. This 3/8in version has a metal bowl and a 40 um element, handling 0.15-0.9 MPa (20-130 psi) with a maximum supply of 1.0 MPa (145 psi).
The automatic drain clears condensate without manual attention, while the reverse-flow valve is fitted as an ordering difference. Weighing 880 g, this unit is built for a panel or frame mount rather than support from the tubing, and its 100 cc bowl sets the service interval for draining.
Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJK |
|---|---|
| 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 | Not included (J) |
| 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 GAFR400C10ASJK
| 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| (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 GAFR400C10ASJK Is Used
Machine tool circuits
Feed a 3/8in line to a CNC clamp or a precision fixture where steady pressure and clean air protect the valves.
Assembly station headers
Supply a small manifold on a workbench, using the automatic drain to handle condensate from a humid compressor.
Test rigs and benches
Set a stable 0.15-0.9 MPa output for pneumatic test fixtures, with the metal bowl standing up to shop conditions.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJK the Right Air-Prep Unit?
Choose the body and port first: this GAFR400 offers a 3/8in port and a flow curve plotted to 7000 L/min at 0.7 MPa inlet, stepping up from the GAFR300's 3500 L/min envelope. The metal bowl suits demanding environments, and the automatic drain handles wet lines without manual checks. The 40 um element is the standard grade, while the included circular gauge reads in MPa/psi via the PT thread. The J code means no mounting bracket is supplied, so plan for an existing bracket or panel mount. If oil is needed downstream, order the matching GAFC400-10 combination instead. Note that 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 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 GAFR400C10ASJK FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), with a maximum of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Temperature range is -5 to 70 C. The drain bowl holds 100 cc and the unit weighs 880 g, with a 3/8in port and a flow curve plotted to 7000 L/min at 0.7 MPa inlet.
The K indicates a reverse-flow (reflux) valve is fitted. It is an ordering difference shown in the catalogue as a separate pneumatic symbol; its function is detailed on a page not included in our data, so confirm the application with the datasheet.
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