Airtac GAFR Adjustable Filter Regulator GAFR300C15ASJK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300C15ASJK 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 materialMetal
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight500 g
About the Airtac GAFR Adjustable Filter Regulator GAFR300C15ASJK
The GAFR300C15ASJK is a filter and regulator combined into a single body, replacing separate GAF and GAR units. 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 1/2in port, a 0.15-0.9 MPa (20-130 psi) working range, and a 40 um element.
The metal bowl (60 cc) and automatic drain make it suitable for continuous operation where manual draining is impractical. Weighing 500 g, it is a compact unit for machine-level installation. The fitted circular gauge with MPa/psi scale allows direct pressure monitoring.
Airtac GAFR Adjustable Filter Regulator GAFR300C15ASJK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300C15ASJK |
|---|---|
| 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 | Metal |
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR300C15ASJK
| GAFR300 | GA300 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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. |
| (blank) | Circular pressure gauge fitted. |
| (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 GAFR300C15ASJK Is Used
Machine Tool Air Prep
Feed a 1/2in line to a CNC machine's pneumatic clamping system. The automatic drain removes condensate continuously, while the regulator holds set pressure for consistent clamp force.
Assembly Line Automation
Supply filtered, regulated air to multiple actuators on an assembly station. The 60 cc metal bowl handles moderate condensate loads, and the 500 g body mounts neatly on a machine frame.
Process Control Panels
Use in a control panel to protect sensitive pneumatic valves and positioners. The 40 um element traps particles, and the automatic drain ensures unattended operation in wet supply lines.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300C15ASJK the Right Air-Prep Unit?
Choose the GAFR300 body for 1/2in port applications needing up to 3500 L/min flow (plotted at 0.7 MPa inlet). The metal bowl suits demanding environments, while the automatic drain handles wet lines without operator intervention. This unit has no mounting bracket (J), so plan for panel mounting or existing brackets. The 40 um element is standard for general pneumatics. The PT thread with MPa/psi gauge scale matches standard regional fittings. The reverse-flow (reflux) valve is fitted as an ordering difference. If downstream lubrication is needed, order the matching GAFC300-15 combination instead. Note 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 GAFR300C15ASJK FAQ
Working pressure range is 0.15-0.9 MPa (20-130 psi), with a max pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Temperature range is -5 to 70 C. The drain bowl holds 60 cc and the unit weighs 500 g. It has a 1/2in port and a 40 um filter element.
The K indicates a reverse-flow (reflux) valve is fitted. This is an ordering difference from standard models. The valve's function is detailed in the full AirTAC catalogue, but it does not affect the filter or regulator operation.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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