Airtac GAFR Adjustable Filter Regulator GAFR300N08ASJW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N08ASJW 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 1/4" 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 size1/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialNylon
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight500 g
About the Airtac GAFR Adjustable Filter Regulator GAFR300N08ASJW
This AirTAC GAFR300N08ASJW is a filter and regulator combined into a single body, saving rail space and reducing potential leak points compared to separate units. It handles a 1/4in port with a standard pressure range of 0.15-0.9 MPa (20-130 psi) and uses a 5 um element for finer filtration.
The nylon bowl and automatic drain make it suitable for applications where regular manual maintenance is inconvenient. Weighing 500 g, it is a compact unit for its 60 cc condensate capacity, and the fitted circular gauge with MPa/psi scale allows for precise pressure monitoring.
Airtac GAFR Adjustable Filter Regulator GAFR300N08ASJW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N08ASJW |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 1/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Nylon |
| 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 | Not included (J) |
| 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 GAFR300N08ASJW
| GAFR300 | GA300 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 08 | Port size 1/4". 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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 GAFC300-08 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 · 1/4" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-08 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR300N08ASJW Is Used
Precision Valve Control
Feed a bank of precision pneumatic valves with cleaner 5 um filtered air to help protect their internal components and improve reliability.
Test Bench Air Supply
Provide a stable, filtered air supply to a laboratory test bench or calibration rig where a steady pressure and fine filtration are important.
Single Station Automation
Use on a single automated assembly station to filter and regulate air for a compact actuator or a small pneumatic press.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N08ASJW the Right Air-Prep Unit?
Choose this GAFR300N08ASJW for a 1/4in line requiring finer 5 um filtration. The nylon bowl offers an alternative to the standard PC or metal options, and the automatic drain (A) handles condensate without manual intervention. This model omits the mounting bracket (J), so plan for panel mounting or an existing bracket, and the included gauge reads in MPa/psi. For applications needing oil downstream, the matching GAFC300-08 combination adds a lubricator. Remember 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 (1/4" 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 GAFC300-08 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR300N08ASJW FAQ
It is a filter & regulator with a 1/4in port, a standard pressure range of 0.15-0.9 MPa (20-130 psi), and a maximum pressure of 1.0 MPa (145 psi). The proof pressure is 1.5 MPa (215 psi), and the operating temperature range is -5 to 70 C. It has a 60 cc drain bowl and weighs 500 g.
The 'J' indicates that the mounting bracket is NOT included with this model. You will need to use an existing bracket or plan for a panel-mount installation. The standard version of this unit would include the bracket.
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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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