Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJK 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 1/2" 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 size1/2"
- 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 GAFR400C15ASJK
The GAFR400C15ASJK is a filter and regulator combined into a single body, so it cleans incoming air and sets a steady outlet pressure without needing a separate filter plus regulator pair. This 1/2in model handles flows plotted to 7000 L/min at 0.7 MPa inlet and weighs 880 g, placing it in the mid-size class for machine headers. It has a metal bowl, a 40 um element, and an automatic drain, with a working range of 0.15-0.9 MPa (20-130 psi). No lubricator is present, and this unit has only one bowl for condensate.
The balanced regulator mechanism holds the set pressure steady as supply varies, and the pressed-in self-locking knob resists drift from vibration. The diversion structure spins the air to separate liquid water and solid particles into the 100 cc drain bowl. This model ships without a mounting bracket, so plan for a panel mount or an existing bracket. A reverse-flow valve is fitted as an ordering option, and the circular gauge reads in MPa/psi.
Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (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 GAFR400C15ASJK
| 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). |
| 15 | Port size 1/2". 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 GAFC400-15 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 · 1/2" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-15 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJK Is Used
Machine tool header
Feed a 1/2in header serving several pneumatic actuators on a CNC machine. The 100 cc bowl and automatic drain handle condensate from a busy shift without manual attention.
Assembly line station
Supply a multi-station assembly line where a steady 0.15-0.9 MPa (20-130 psi) is needed for clamping fixtures. The metal bowl resists rough handling near the line.
Test bench air supply
Provide filtered air to a test bench with precision valves. The 40 um element traps particles, and the self-locking knob keeps the set pressure stable during vibration.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJK the Right Air-Prep Unit?
Choose this GAFR400 body when your line needs a 1/2in port and the flow envelope plotted to 7000 L/min at 0.7 MPa inlet. Compared to a GAFR300 with its 3500 L/min envelope, this unit doubles the sizing capacity for a growing machine header. The metal bowl is a build choice, and the common pressure and temperature specs are identical across bowl materials. The automatic drain suits wet or unattended lines, while the standard type covers 0.15-0.9 MPa (20-130 psi). The J code means no bracket is included, and the K code adds a reverse-flow valve. If oil is needed downstream, order the matching GAFC400-15 combination instead. The 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 (1/2" 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 GAFC400-15 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJK FAQ
The working 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). The temperature range is -5 to 70 C and it must not freeze. The drain bowl capacity is 100 cc, and the unit weighs 880 g. The port is 1/2in, and the flow curve is plotted to 7000 L/min at 0.7 MPa inlet.
The K code indicates a reverse-flow (reflux) valve is fitted to the GAFR400C15ASJK. This is an ordering difference from models without the K code. The catalogue does not detail its function in our data, so treat it as a specified option for your application.
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