Airtac GAFR Adjustable Filter Regulator GAFR20008ALJ
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR20008ALJ 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 40 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 grade40 µm
- Bowl materialPC
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight290 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 GAFR20008ALJ
The GAFR20008ALJ is a compact filter and regulator combined into a single body, saving rail space and reducing potential leak points compared to separate units. It handles a 1/4in port and delivers a lower pressure range of 0.15-0.4 MPa (20-58 psi) with a standard 40 um filter element.
Its diversion structure spins incoming air to separate liquid water and solid particles into the 25 cc condensate bowl, while the balanced, self-locking regulator maintains a steady outlet pressure. This 290 g unit is ideal for precise, low-pressure applications where a compact footprint matters.
Airtac GAFR Adjustable Filter Regulator GAFR20008ALJ Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR20008ALJ |
|---|---|
| Series | GAFR200 filter & regulator |
| Port size | 1/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | PC |
| 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 | 25 cc |
| Bracket | Not included (J) |
| Weight | 290 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 GAFR20008ALJ
| GAFR200 | GA200 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 06 = 1/8", 08 = 1/4". |
| A | Drain: Automatic 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. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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 GAFC200-08 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 | GAFR200 · 1/4" · curve to 2000 L/min |
|---|---|
| One size up | GAFR300 (curve to 3500 L/min) |
| Add a lubricator | GAFC200-08 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR20008ALJ Is Used
Precision Pressure Control
Feed a sensitive pneumatic sensor or a small calibration jig that requires a stable, low supply pressure. The balanced regulator holds the setpoint as shop pressure fluctuates.
Compact Workstation
Mount this unit on a small assembly bench to provide filtered, regulated air to a handheld spray gun or a miniature vacuum generator, keeping the setup tidy.
Lab Air Supply
Use it to condition air for a laboratory test fixture that needs clean, low-pressure air without the bulk of a larger filter-regulator assembly.
Is the Airtac GAFR Adjustable Filter Regulator GAFR20008ALJ the Right Air-Prep Unit?
Choose the GAFR200 body for small jigs or single actuators needing a 1/4in port; its 2000 L/min flow envelope at 0.7 MPa inlet suits lighter duty than the GAFR300's 3500 L/min. The automatic drain (A) handles wet or unattended lines, while the PC bowl suits standard shop environments. The L-type regulator tops out at 0.4 MPa, so confirm your system never needs more than that. This model omits the mounting bracket (J), so plan for panel mounting or an existing bracket. The fitted circular gauge reads in MPa/psi, and the 40 um element is the standard choice. If oil is needed downstream, order the matching GAFC200-08 combination instead. Note that 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 25 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 290 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 GAFC200-08 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR20008ALJ FAQ
It is a filter & regulator with a 1/4in port, a lower pressure range of 0.15-0.4 MPa (20-58 psi), a maximum pressure of 1.0 MPa (145 psi), and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, has a 25 cc drain bowl, and weighs 290 g. The unit has an automatic drain and a 40 um element.
The 'L' code designates the lower-pressure type, which tops out at 0.4 MPa for applications that never need higher output. The 'J' code omits the mounting bracket, so you must use an existing bracket or a panel mount. This keeps the unit lighter and more compact for specific installations.
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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.
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Most inquiries answered within 7-8 hours.
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