Airtac GAFR Adjustable Filter Regulator GAFR300N15SNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N15SNWK 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 - 0.9 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 grade5 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight500 g
About the Airtac GAFR Adjustable Filter Regulator GAFR300N15SNWK
The GAFR300N15SNWK is a filter and pressure regulator combined into a single body, so incoming air is spun to separate liquid water and solid particles before the balanced regulator sets a steady outlet pressure. This 1/2in model works across 0.15-0.9 MPa (20-130 psi) and uses a 5 um element to trap finer particles for precision applications.
With a 60 cc condensate bowl and 500 g mass, this unit suits a mid-size machine station where a compact footprint matters. The nylon bowl and the reverse-flow valve are fitted, while the mounting bracket is included for secure panel installation.
Airtac GAFR Adjustable Filter Regulator GAFR300N15SNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N15SNWK |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 1/2" (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. 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 GAFR300N15SNWK
| 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. |
| 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. |
| 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 GAFR300N15SNWK Is Used
Precision valve control
Feed a bank of precision pneumatic valves that need clean, regulated air at a steady pressure. The 5 um element removes fine particles that could clog small orifices.
Mid-size machine station
Mount this unit on a machine frame to supply a single station with filtered air at a set pressure. The 500 g mass and included bracket keep it stable on the panel.
Instrument air feed
Use it to protect sensitive instruments from water and solid contamination. The diversion structure spins out liquid while the 5 um element captures fine grain.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N15SNWK the Right Air-Prep Unit?
Choose this GAFR300 body when you need a 1/2in port and a 60 cc drain bowl, stepping up from the GAFR200's 25 cc bowl if your line runs wetter. The nylon bowl is a build choice with the same 1.0 MPa maximum as PC or metal, so confirm compatibility for aggressive surroundings. This model has the semi-auto drain plus manual drain, a 5 um element for finer filtration, and no gauge - the 1/8in gauge connection is ready if you add one later. The PT thread carries an MPa/psi scale, and the reverse-flow valve is an ordering difference only. If your line needs oil downstream, order the matching GAFC300-15 combination instead. 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 (1/2" 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 GAFR300N15SNWK FAQ
This filter & regulator works from 0.15-0.9 MPa (20-130 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. It operates from -5 to 70 C and must not freeze. The drain bowl holds 60 cc and the unit weighs 500 g.
The N after the port means no gauge is supplied, but the 1/8in gauge connection is there if you add one later. The K code indicates a reverse-flow (reflux) valve is fitted, which is an ordering difference from the standard version.
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