Airtac GAFR Adjustable Filter Regulator GAFR20008ALJWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR20008ALJWK 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
- 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 GAFR20008ALJWK
The GAFR20008ALJWK is a filter and pressure regulator combined into a single body, replacing a separate filter plus regulator pair. It spins incoming air to separate liquid water and trap solid particles, then delivers a steady outlet pressure through a balanced, self-locking mechanism that resists drift from vibration. This model has a 1/4in port, a lower-pressure range of 0.15-0.4 MPa (20-58 psi), and a 5 um element for finer filtration.
With a 25 cc condensate bowl and a 290 g mass, this compact unit suits small jigs and single actuators. The automatic drain clears condensate without manual attention, and the fitted circular gauge shows the set pressure on an MPa/psi scale. A reverse-flow (reflux) valve is attached as an ordering difference, and no mounting bracket is included, so plan for panel mounting or an existing bracket.
Airtac GAFR Adjustable Filter Regulator GAFR20008ALJWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR20008ALJWK |
|---|---|
| Series | GAFR200 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 | 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 GAFR20008ALJWK
| 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. |
| 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 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 GAFR20008ALJWK Is Used
Precision valve control
Feed a single precision pneumatic valve or small actuator with clean, regulated air. The 5 um element protects fine internal passages, and the lower-pressure range suits delicate operations.
Bench test rigs
Use on a test bench or calibration jig where a compact filter-regulator with a visible gauge is needed. The automatic drain keeps the bowl from filling during long setups.
Light assembly tools
Supply a small screwdriver or tightening tool on an assembly line. The 1/4in port and 290 g weight fit tight spaces, while the self-locking knob holds the set pressure despite nearby vibration.
Is the Airtac GAFR Adjustable Filter Regulator GAFR20008ALJWK the Right Air-Prep Unit?
Choose this GAFR200 body for 1/8in or 1/4in ports; the 1/4in port here serves small cylinders and light automation. The lower-pressure L type tops out at 0.4 MPa, so if the machine may ever need more, select the standard S type instead. The PC bowl suits general duty, while the 5 um element traps finer particles for precision valves at the cost of more frequent element service. The automatic drain handles wet or unattended lines, and the missing bracket means you must provide your own mounting. The PT thread gives an MPa/psi gauge scale, and the reflux valve is fitted per the K code. If oil is needed downstream, order the matching GAFC200-08 combination, which adds a lubricator. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above the 0.4 MPa top of this unit's regulated 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 GAFR20008ALJWK FAQ
The GAFR20008ALJWK 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 and must not freeze. The condensate bowl holds 25 cc, the unit weighs 290 g, and it has a 5 um filter element.
The L type limits the regulated output to 0.15-0.4 MPa, which suits low-pressure applications but cannot go higher. The K code indicates a reverse-flow (reflux) valve is fitted; it is an ordering difference, and its detailed function is covered in the catalogue. This unit has no lubricator, so if you need oil downstream, order the GAFC200-08 combination instead.
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