Airtac GAFR Adjustable Filter Regulator GAFR300C15ASWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300C15ASWK 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
- Weight500 g
About the Airtac GAFR Adjustable Filter Regulator GAFR300C15ASWK
The GAFR300C15ASWK is a filter and regulator combined in a single body, so incoming air is spun to separate liquid water and solid particles before a balanced regulator sets a steady outlet pressure. This 1/2in version covers 0.15-0.9 MPa (20-130 psi), uses a 5 um element, and has a metal bowl with an automatic drain.
Because the filter and regulator share one housing, this unit replaces a separate GAF filter plus GAR regulator, reducing potential leak points and saving rail space. The pressed-in self-locking knob resists set-pressure drift from vibration, keeping the outlet stable in demanding environments.
Airtac GAFR Adjustable Filter Regulator GAFR300C15ASWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300C15ASWK |
|---|---|
| Series | GAFR300 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 | 60 cc |
| Bracket | Included |
| Weight | 500 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 GAFR300C15ASWK
| GAFR300 | GA300 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 08 = 1/4", 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 GAFC300-15 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 | GAFR300 · 1/2" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-15 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR300C15ASWK Is Used
Precision valve control
Feed a bank of precision pneumatic valves with the 5 um element filtering fine particles that could clog small orifices, while the regulator holds a steady 0.15-0.9 MPa supply.
Machine tool air supply
Supply a single machining center with clean, regulated air at up to 0.9 MPa, with the automatic drain handling condensate without manual intervention.
Test bench setup
Use on a pneumatic test bench where a stable, adjustable pressure is needed for component testing, with the metal bowl protecting against accidental impacts.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300C15ASWK the Right Air-Prep Unit?
Choose the GAFR300 body for 1/2in ports with a 60 cc condensate bowl and 500 g mass, sized between the smaller GAFR200 and the larger GAFR400. The metal bowl suits demanding environments, while the 5 um element traps finer particles than the standard 40 um for precision applications. This unit has an automatic drain for unattended operation, includes the mounting bracket, and the fitted gauge reads in MPa/psi. The reverse-flow (reflux) valve is attached as an ordering option. If oil is needed downstream, order the matching GAFC300-15 combination instead. Max supply 1.0 MPa 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 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 500 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 GAFC300-15 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR300C15ASWK FAQ
The GAFR300C15ASWK operates from 0.15-0.9 MPa (20-130 psi), with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Temperature range is -5 to 70 C. It has a 60 cc drain bowl and weighs 500 g.
The K indicates a reverse-flow (reflux) valve is fitted. It is an ordering difference from models without K; the catalogue defers its function to a separate page not included in our data.
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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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Most inquiries answered within 7-8 hours.
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