Airtac GAFR Adjustable Filter Regulator GAFR300N15ASJNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N15ASJNWK 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
- Drainautomatic
- Pressure gaugeNot fitted
- Weight500 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFR Adjustable Filter Regulator GAFR300N15ASJNWK
The GAFR300N15ASJNWK is a filter and regulator combined in a single body, so it cleans incoming air and stabilizes outlet pressure without needing separate units. This 1/2in version handles 0.15-0.9 MPa (20-130 psi) and uses a 5 um element to trap fine particles.
Its nylon bowl and automatic drain make it suitable for unattended operation, while the 60 cc condensate capacity and 500 g weight define its size class. The pressed-in self-locking knob resists drift from vibration, keeping the set pressure stable during operation.
Airtac GAFR Adjustable Filter Regulator GAFR300N15ASJNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N15ASJNWK |
|---|---|
| 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 | 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 | Not included (J) |
| 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 GAFR300N15ASJNWK
| 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| 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 GAFR300N15ASJNWK Is Used
Precision valve control
Feed a bank of precision pneumatic valves that need clean, stable air at 0.15-0.9 MPa. The 5 um element protects sensitive internals from fine particulate wear.
Machine tool circuits
Supply a single machining station with filtered air at a steady pressure. The automatic drain keeps the 60 cc bowl from overflowing during extended production runs.
Panel-mount installations
Mount this unit directly into an existing control panel using the 1/2in port. The omitted bracket (J) reduces bulk, while the self-locking knob holds the setpoint despite machine vibration.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N15ASJNWK the Right Air-Prep Unit?
Choose this GAFR300 when you need a 1/2in port with a 5 um element for finer filtration than the standard 40 um. The nylon bowl offers a build option without changing the 1.0 MPa (145 psi) maximum or -5 to 70 C temperature range, so confirm compatibility for aggressive environments. The automatic drain handles condensate without manual intervention, while the missing bracket (J) suits panel-mount installations where the included bracket would be redundant. No gauge is supplied, but the 1/8in gauge connection allows adding one later. The reverse-flow valve is fitted as an ordering difference. If downstream lubrication is required, order the matching GAFC300-15 combination instead. With a 1.0 MPa max supply, you get about 0.1 MPa above the 0.9 MPa top of the regulated 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 GAFR300N15ASJNWK FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. Temperature range is -5 to 70 C (must not freeze). The drain bowl holds 60 cc and the unit weighs 500 g. It uses a 5 um element and has a 1/2in port.
The N after the port code means no gauge is supplied, though the 1/8in gauge connection allows adding one later. The J code omits the mounting bracket, which suits installations where the unit mounts directly to a panel or existing frame rather than needing the standard bracket.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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