Airtac GAFR Adjustable Filter Regulator GAFR300N15LNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N15LNWK 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 - 0.4 MPa (20 - 58 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight500 g
About the Airtac GAFR Adjustable Filter Regulator GAFR300N15LNWK
The GAFR300N15LNWK is a filter and pressure regulator combined in a single body, eliminating the need for separate GAF and GAR units. It delivers 0.15-0.4 MPa (20-58 psi) regulated air through a 1/2in port, with a 5 um element that traps fine particles for sensitive equipment.
This 500 g unit features a nylon bowl and both semi-auto and manual drains, allowing flexible condensate removal. The reverse-flow (reflux) valve is fitted as an ordering difference, and the mounting bracket is included for secure installation.
Airtac GAFR Adjustable Filter Regulator GAFR300N15LNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N15LNWK |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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 GAFR300N15LNWK
| 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". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Mounting bracket included. |
| N | No pressure gauge; 1/8" gauge connection. |
| 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 GAFR300N15LNWK Is Used
Precision valve control
Feed a 5 um filtered, lower-pressure supply to precision pneumatic valves that require stable 0.15-0.4 MPa air without the risk of over-pressurization.
Test bench setup
Use on a test bench where a compact 500 g unit with a 1/2in port provides clean, regulated air for calibration fixtures and measurement instruments.
Light assembly line
Install on a light assembly line to supply filtered air to small actuators and tooling, with the 60 cc bowl reducing drain frequency during continuous operation.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N15LNWK the Right Air-Prep Unit?
Choose the GAFR300 body for 1/2in port applications needing a 60 cc condensate bowl and a flow curve plotted to 3500 L/min at 0.7 MPa inlet. The nylon bowl suits environments where weight matters, while the 5 um element filters finer particles than the standard 40 um grade. This L-type model tops out at 0.4 MPa, so confirm your system never needs higher regulated pressure. The semi-auto+manual drain requires periodic attention, unlike an automatic drain option. The included bracket simplifies mounting, and the no-gauge configuration leaves a 1/8in connection for adding one later. If lubrication is needed downstream, order the matching GAFC300-15 combination. With a 1.0 MPa max supply, you have about 0.6 MPa above the 0.4 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 GAFR300N15LNWK FAQ
This filter & regulator has a 0.15-0.4 MPa (20-58 psi) working range, 1.0 MPa (145 psi) max pressure, 1.5 MPa (215 psi) proof pressure, and operates from -5 to 70 C. It has a 60 cc drain bowl and weighs 500 g.
The L-type regulator is limited to 0.4 MPa for applications needing gentle, low-pressure air. The reflux (reverse-flow) valve is fitted as an ordering difference; its function is detailed in the catalogue but not 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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