Airtac GAFR Adjustable Filter Regulator GAFR400C15ASWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15ASWK 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 5 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 grade5 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASWK
The GAFR400C15ASWK is a filter and regulator combined into one body, so a single unit handles both air preparation and pressure control. It has a 1/2in port, a 0.15-0.9 MPa (20-130 psi) working range, and a 5 um element that traps fine particles for sensitive equipment.
This model uses a metal bowl and an automatic drain, making it suited for continuous operation where manual draining is impractical. The 100 cc condensate bowl and 880 g weight define its size class, and the included mounting bracket provides secure installation for a unit of this mass.
Airtac GAFR Adjustable Filter Regulator GAFR400C15ASWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15ASWK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 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 GAFR400C15ASWK
| 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). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 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 GAFR400C15ASWK Is Used
Precision valve control
Feed a bank of precision pneumatic valves that need clean, regulated air at a steady pressure. The 5 um element removes fine particulates that could clog small orifices.
Machine tool circuits
Supply a machining center's pneumatic clamping system with filtered air at a consistent 0.15-0.9 MPa. The automatic drain keeps the metal bowl from filling during long production runs.
Automated assembly stations
Protect actuators on an assembly line from water and solids while maintaining set pressure. The 100 cc bowl and 7000 L/min envelope at 0.7 MPa inlet support multiple devices.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASWK the Right Air-Prep Unit?
Choose the GAFR400 body when you need a 1/2in port and a flow envelope plotted to 7000 L/min at 0.7 MPa inlet, which is double the GAFR300's 3500 L/min envelope. The metal bowl is a build choice for demanding environments, while the standard S type covers 0.15-0.9 MPa (20-130 psi) for most applications. The automatic drain handles condensate without attention, and the 5 um element suits precision valves but requires more frequent service than a 40 um unit. The included bracket simplifies mounting, and the fitted gauge reads in MPa/psi. The K code adds a reverse-flow (reflux) valve as an ordering difference. If the line needs oil downstream, order the matching GAFC400-15 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 (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 GAFR400C15ASWK FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. Temperature range is -5 to 70 C. The drain bowl holds 100 cc and the unit weighs 880 g. It has a 1/2in port and a 5 um filter element.
The K indicates a reverse-flow (reflux) valve is fitted. This is an ordering difference from a standard GAFR400; the catalogue details its function separately. This unit remains a filter and regulator only, with no lubricator.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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