Airtac GAFR Adjustable Filter Regulator GAFR300N10SWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N10SWK 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 3/8" 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 size3/8"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight500 g
About the Airtac GAFR Adjustable Filter Regulator GAFR300N10SWK
The GAFR300N10SWK combines air filtration and pressure regulation in a single 500 g body with a 3/8in port. It spins incoming air to separate liquid water and solid particles into the 60 cc nylon bowl, then delivers a steady outlet pressure through its balanced regulator. The 5 um element traps finer particles than the standard 40 um grade, suiting precision valves or instrument air.
This unit operates from 0.15 to 0.9 MPa (20-130 psi) with a 1.0 MPa (145 psi) maximum. The pressed-in self-locking knob resists set-pressure drift from vibration, and the semi-auto plus manual drain gives you both automatic condensate release and a manual override. A reverse-flow (reflux) valve is fitted as an ordering difference.
Airtac GAFR Adjustable Filter Regulator GAFR300N10SWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N10SWK |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Nylon |
| Drain type | Semi-auto drain + manual 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 GAFR300N10SWK
| 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). |
| 10 | Port size 3/8". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual 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 GAFC300-10 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 · 3/8" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-10 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR300N10SWK Is Used
Precision valve control
Feed a bank of pneumatic valves on a small assembly station. The 5 um element protects fine internal clearances, while the balanced regulator holds set pressure as line supply fluctuates.
Instrument air supply
Supply a laboratory test rig or measurement device that needs cleaner air than standard shop supply. The 5 um element reduces particle load to sensitive orifices and regulators.
Single actuator line
Protect one air cylinder or rotary actuator on a dedicated 3/8in drop. The 60 cc bowl handles typical condensate between shifts, and the manual drain gives a quick visual check.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N10SWK the Right Air-Prep Unit?
Choose this GAFR300N10SWK for a 3/8in line needing 5 um filtration and a stable 0.15-0.9 MPa (20-130 psi) output. The nylon bowl suits applications where a clear sight glass is not required, and the included mounting bracket simplifies panel installation. The semi-auto plus manual drain handles normal condensate, while the fitted gauge with MPa/psi scale lets you read set pressure directly. If downstream lubrication is ever needed, order the matching GAFC300-10 combination instead. Note that 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan inlet pressure near the maximum for full output.
Quick checklist
- ✓ Body size for your peak flow (3/8" 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 GAFC300-10 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR300N10SWK FAQ
The GAFR300N10SWK is a filter & regulator with a 3/8in port, 60 cc drain bowl, and 500 g weight. Working pressure is 0.15-0.9 MPa (20-130 psi), with 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. Temperature range is -5 to 70 C. It has a 5 um element, nylon bowl, semi-auto plus manual drain, and a fitted gauge with MPa/psi scale.
The K suffix indicates a reverse-flow (reflux) valve is fitted to the GAFR300N10SWK. This is an ordering difference from models without the K code. The catalogue does not specify its function in the available data, so consult the full datasheet for operational details.
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