Airtac GAFR Adjustable Filter Regulator GAFR30008LJWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR30008LJWK 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 1/4" 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 size1/4"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialPC
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- 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 GAFR30008LJWK
This AirTAC GAFR30008LJWK is a filter and regulator combined into a single body, so one compact unit both cleans the air and locks in a steady outlet pressure. It has no lubricator and only one bowl, the 60 cc condensate chamber. The lower-pressure version regulates from 0.15 to 0.4 MPa (20-58 psi) and includes a 5 um element for finer filtration.
The diversion structure spins the incoming air to separate liquid water and solid particles into the drain bowl, while the balanced, self-locking regulator holds the set pressure steady as supply varies. At 500 g with a 1/4in port, this GAFR300 is a light-duty unit that suits small machines and individual actuators. A circular gauge with MPa/psi scale is fitted, and the reverse-flow (reflux) valve is attached as an ordering difference.
Airtac GAFR Adjustable Filter Regulator GAFR30008LJWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR30008LJWK |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 1/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | PC |
| 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 | 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 GAFR30008LJWK
| GAFR300 | GA300 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 08 | Port size 1/4". 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| (blank) | Circular pressure gauge fitted. |
| 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 GAFC300-08 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 · 1/4" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-08 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR30008LJWK Is Used
Precision jig clamping
Feed a single pneumatic jig or fixture on a benchtop assembly station. The 5 um element protects small precision valves from fine particles, while the lower pressure range suits delicate clamping forces.
Laboratory air supply
Supply a lab instrument or test rig that needs clean, regulated air at modest pressure. The 60 cc bowl is easy to inspect, and the semi-auto drain lets an operator empty it on schedule.
Light maintenance bench
Power a small air tool or blow gun at a maintenance bench. The 1/4in port and 500 g weight keep the unit compact, and the fitted gauge shows the lower pressure range clearly.
Is the Airtac GAFR Adjustable Filter Regulator GAFR30008LJWK the Right Air-Prep Unit?
Choose the GAFR300 body for 1/4in or 3/8in ports; this model uses 1/4in. The lower-pressure L type tops out at 0.4 MPa, so if your line may ever need more than that, select the standard S version instead. The 5 um element traps finer particles than the standard 40 um, but will need more frequent service. This unit ships without the mounting bracket (J code), so plan for a panel mount or existing bracket. The PC bowl and semi-auto plus manual drain are the default choices. A gauge is fitted and reads MPa/psi because the thread is PT. The K code adds the reverse-flow valve, which is noted here as an ordering difference only. If oil is needed downstream, order the matching GAFC300-08 combination. The 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range.
Quick checklist
- ✓ Body size for your peak flow (1/4" 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 GAFC300-08 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR30008LJWK FAQ
The GAFR30008LJWK is a filter & regulator with a 1/4in port, regulating from 0.15 to 0.4 MPa (20-58 psi). Maximum pressure is 1.0 MPa (145 psi) and proof pressure is 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 5 um element, a fitted gauge, and no mounting bracket.
The K code means a reverse-flow (reflux) valve is fitted to this unit. It is an ordering difference from models without the K code. The catalogue does not detail its function in our data, so please confirm the operational details from the full AirTAC datasheet if you need them.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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