Airtac GAFR Adjustable Filter Regulator GAFR300N15AS
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N15AS 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 materialNylon
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight500 g
About the Airtac GAFR Adjustable Filter Regulator GAFR300N15AS
The GAFR300N15AS is a filter and regulator combined in a single body, so it cleans incoming air and stabilizes outlet pressure without needing separate units. It has a 1/2in port, a 0.15-0.9 MPa (20-130 psi) adjustment range, and a 40 um element. The nylon bowl holds 60 cc of condensate, and the unit weighs 500 g.
The diversion structure spins the air to separate liquid water and solid particles into the bowl, while the balanced, self-locking regulator keeps the set pressure steady as supply varies. This model has an automatic drain, so it suits unattended operation. The included circular gauge with MPa/psi scale lets you read the outlet pressure directly.
Airtac GAFR Adjustable Filter Regulator GAFR300N15AS Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N15AS |
|---|---|
| Series | GAFR300 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 | 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 | 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 GAFR300N15AS
| 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). |
| 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. |
| (blank) | Filtering grade 40 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 GAFC300-15 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 GAFR300N15AS Is Used
Precision machining center
Feed a 1/2in line to a CNC machine's tool changer or clamping fixtures, where stable pressure and clean air protect sensitive valves.
Assembly station air supply
Use on a multi-operator assembly bench with pneumatic screwdrivers and push-in fittings, where the automatic drain reduces maintenance.
Test rig instrumentation
Supply a test bench with regulated air for gauges and sensors, relying on the 40 um element to keep particles out of orifices.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N15AS the Right Air-Prep Unit?
Choose this GAFR300N15AS when you need a 1/2in port with a 60 cc nylon bowl and automatic drain. The nylon bowl is a build choice; the common 1.0 MPa max and -5 to 70 C range apply to all bowl materials, so confirm compatibility for aggressive surroundings. The standard S type covers 0.15-0.9 MPa (20-130 psi), and the 40 um element handles general shop air. The mounting bracket is included, and the PT thread means the gauge reads MPa/psi. If you need finer filtration, select the W option for a 5 um element. For oil downstream, order the 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 GAFR300N15AS FAQ
Pressure range is 0.15-0.9 MPa (20-130 psi), max pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -5 to 70 C. The drain bowl holds 60 cc, and the unit weighs 500 g. It has a 1/2in port and a 40 um element.
The automatic drain expels condensate without manual intervention, making it suitable for wet lines or unattended operation. This model does not have a manual drain option; the A code specifies the automatic type.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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