Airtac GAFR Adjustable Filter Regulator GAFR300N15SNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N15SNK 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 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 size1/2"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- 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 GAFR300N15SNK
This AirTAC GAFR300N15SNK combines a 40 um air filter and a pressure regulator inside a single housing, so it cleans incoming air and locks a steady outlet pressure without needing a separate filter plus regulator pair. The nylon bowl holds condensate and solids removed by the internal diversion structure, and the pressed-in self-locking knob resists set-pressure drift from vibration.
With a 1/2in port and 500 g mass, this unit is sized for medium-flow lines feeding a few actuators or a small machine header. It regulates from 0.15 to 0.9 MPa (20-130 psi) and includes both semi-auto and manual drains, plus a reverse-flow valve fitted as an ordering difference.
Airtac GAFR Adjustable Filter Regulator GAFR300N15SNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N15SNK |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 1/2" (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 GAFR300N15SNK
| 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. |
| (blank) | Filtering grade 40 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 GAFR300N15SNK Is Used
Machine tool air supply
Feed a small machining center's pneumatic clamps and cylinders with clean, regulated air at a steady 0.15-0.9 MPa, while the 60 cc bowl captures water and debris from the supply line.
Assembly station header
Mount this unit on a medium assembly bench to supply multiple hand tools or single-acting actuators, relying on the semi-auto drain to purge condensate during shift changes.
Test rig pressure source
Use the 1/2in port and 40 um filtration to provide a stable, adjustable pressure for prototype testing, with the reverse-flow valve fitted as specified and the bracket securing the 500 g body to a frame.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N15SNK the Right Air-Prep Unit?
Choose this GAFR300 body when your line needs 1/2in connections and a 60 cc condensate bowl; step up to a GAFR400 if you need 3/8in or 1/2in ports with a 100 cc bowl and a flow envelope plotted to 7000 L/min at 0.7 MPa inlet. The nylon bowl is a build choice with the same 1.0 MPa max and -5 to 70 C rating as PC or metal options, so confirm compatibility for aggressive surroundings. The semi-auto plus manual drain pair suits attended lines, while the included bracket simplifies mounting; no gauge is supplied, but the 1/8in gauge connection is ready if you add one later. The 40 um element handles general shop air, and the PT thread carries an MPa/psi gauge scale. If oil is needed downstream, order the matching GAFC300-15 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 (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 GAFR300N15SNK FAQ
The GAFR300N15SNK is a filter & regulator with a 1/2in port, working pressure range of 0.15-0.9 MPa (20-130 psi), max pressure of 1.0 MPa (145 psi), proof pressure of 1.5 MPa (215 psi), and temperature range of -5 to 70 C. It has a 40 um element, a 60 cc drain bowl, and weighs 500 g.
The K indicates a reverse-flow (reflux) valve is fitted to this GAFR300N15SNK. It is an ordering difference from models without K; the catalogue defers its function to a separate page, so no operational details are provided here.
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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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