Airtac GAFR Adjustable Filter Regulator GAFR300N10SN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N10SN 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 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 size3/8"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight500 g
About the Airtac GAFR Adjustable Filter Regulator GAFR300N10SN
The GAFR300N10SN is a filter and regulator combined into a single body, replacing a separate filter and regulator pair. It spins incoming air to separate liquid water and trap solid particles, then delivers a steady outlet pressure via a balanced, self-locking regulator. This model has a 3/8in port, a nylon bowl, and a 40 um element.
Its working range is 0.15-0.9 MPa (20-130 psi), with a maximum supply pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). The 60 cc drain bowl collects condensate, and the unit weighs 500 g. It operates from -5 to 70 C and must not freeze.
Airtac GAFR Adjustable Filter Regulator GAFR300N10SN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N10SN |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 40 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. No gauge is supplied with this model — the gauge connection on a GAFR300 is 1/8" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR300N10SN
| 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. |
| N | No pressure gauge; 1/8" gauge connection. |
| (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 GAFC300-10 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 GAFR300N10SN Is Used
Precision valve control
Feed a single precision pneumatic valve or a small indexing table with clean, regulated air. The 40 um element and steady outlet pressure help maintain consistent actuation.
Bench test setup
Use on a test bench or light assembly station where a compact 3/8in supply feeds one or two cylinders. The semi-auto drain lets an operator manually purge condensate between shifts.
Light machine station
Mount on a small machine frame or panel to protect a single workholding clamp or a short conveyor section. The 500 g weight suits a rigid bracket or panel mount.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N10SN the Right Air-Prep Unit?
Choose the GAFR300 body for 1/4in to 1/2in port lines; this 3/8in version sits between the smaller GAFR200 (25 cc bowl) and the larger GAFR400 (100 cc bowl). The nylon bowl is a build choice, and the 40 um element is the standard grade. This model includes the mounting bracket and has both semi-auto and manual drains fitted; the gauge is omitted, so the 1/8in gauge connection is available if you add one later. The PT thread carries an MPa/psi gauge scale. If your line needs lubrication downstream, order the matching GAFC300-10 combination instead. 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 (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 GAFR300N10SN FAQ
The GAFR300N10SN is a filter & regulator with a 3/8in port. 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. It has a 60 cc drain bowl and weighs 500 g. The element is 40 um and the bowl is nylon.
The N after the port code means no gauge is supplied. The GAFR300 body has a 1/8in gauge connection, so you can add an AirTAC gauge later if you need to read the set pressure. Without a gauge, you cannot verify the outlet pressure directly.
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