Airtac GAFR Adjustable Filter Regulator GAFR20008ALJNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR20008ALJNWK 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 gaugeNot fitted
- 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 GAFR20008ALJNWK
The GAFR20008ALJNWK is a compact filter & regulator from AirTAC, combining air filtration and pressure regulation in a single body. It handles 1/4in ports and delivers a lower pressure range of 0.15-0.4 MPa (20-58 psi), with a 5 um element for finer particle removal. This unit weighs 290 g and has a 25 cc condensate bowl, making it a lightweight choice for space-constrained setups.
The diversion structure inside spins the incoming air to separate liquid water and solid particles, dropping them into the drain bowl. The balanced, self-locking regulator holds the outlet pressure steady as supply varies, resisting drift from vibration. This model has an automatic drain, no mounting bracket, and no gauge, with a 1/8in gauge connection available if one is added later.
Airtac GAFR Adjustable Filter Regulator GAFR20008ALJNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR20008ALJNWK |
|---|---|
| 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. No gauge is supplied with this model — the gauge connection on a GAFR200 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 GAFR20008ALJNWK
| 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. |
| N | No pressure gauge; 1/8" gauge connection. |
| 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 GAFR20008ALJNWK Is Used
Precision valve control
Feed a single precision pneumatic valve or small actuator with clean, regulated air. The 5 um element protects fine internals, while the lower pressure range suits delicate operations.
Bench test rigs
Use on a bench test rig where space is tight and a compact 290 g unit with 1/4in ports fits neatly. The automatic drain keeps condensate managed during extended testing sessions.
Small cabinet installation
Install inside a control cabinet for a small machine station. The no-bracket design allows direct panel mounting, and the lack of a gauge saves space where external readouts are used.
Is the Airtac GAFR Adjustable Filter Regulator GAFR20008ALJNWK the Right Air-Prep Unit?
Choose the GAFR200 body for small jigs or single actuators needing 1/4in ports, where its 290 g mass suits panel mounting rather than tubing support. The 5 um element traps finer particles than the standard 40 um, ideal for precision valves, though it will require more frequent servicing. The automatic drain handles wet or unattended lines, while the lower-pressure type tops out at 0.4 MPa, so confirm your machine never needs more. The J code omits the bracket for existing mounts, and the N code means no gauge is supplied, so plan to add one via the 1/8in connection if you need to read set pressure. The K code includes a reverse-flow valve as an ordering difference. If lubrication is needed downstream, order the matching GAFC200-08 combination instead. With a 1.0 MPa max supply, you have 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 GAFR20008ALJNWK FAQ
The GAFR20008ALJNWK operates from 0.15-0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It works in temperatures from -5 to 70 C and must not freeze. The drain bowl holds 25 cc and the unit weighs 290 g.
The N code after the port indicates no gauge is supplied with this unit. If you need to monitor outlet pressure, you can add one using the 1/8in gauge connection on the GAFR200 body. The set pressure cannot be read without adding a gauge.
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