
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR30010ALJWK 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 3/8" 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.
The GAFR30010ALJWK is a filter and regulator combined into a single body, so incoming air is spun to separate liquid water and solid particles before a balanced regulator sets a steady outlet pressure. This 3/8in unit works in the lower 0.15-0.4 MPa (20-58 psi) band and uses a 5 um element for finer filtration.
A 500 g body with a 60 cc condensate bowl suits compact machine builds where space is tight. The automatic drain clears collected water without manual attention, while the fitted circular gauge shows the set pressure on an MPa/psi scale.
| Model | Airtac GAFR Adjustable Filter Regulator GAFR30010ALJWK |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 3/8" (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 | 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.
| 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). |
| 10 | Port size 3/8". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| 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 GAFC300-10 F.R.L. combination instead.
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 · 3/8" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-10 (F.R.L. combination) |
Feed a bank of small precision pneumatic valves that need clean, regulated air at a stable lower pressure, with the 5 um element protecting sensitive internal orifices.
Supply a laboratory test bench or calibration fixture where compact size and finer filtration matter, and the automatic drain keeps the line clear during long experiments.
Mount inside a small assembly machine or pick-and-place cell where the 500 g weight and 3/8in port fit tight spaces, and the lower pressure range protects delicate actuators.
Choose this GAFR300 when 3/8in ports and a 60 cc drain bowl match your flow needs; the flow curve is plotted to 3500 L/min at 0.7 MPa inlet, which is a sizing envelope rather than a rated capacity. The 5 um element traps finer particles than the standard 40 um, making it a fit for precision valves or instrument air, though service intervals will be shorter. The automatic drain suits wet or unattended lines, and the PT threads carry an MPa/psi gauge scale. No bracket is included with the J code, so plan for panel mounting or an existing support. The reverse-flow (reflux) valve is fitted as an ordering difference. If oil is needed downstream, order the matching GAFC300-10 combination instead. 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range.
Quick checklist
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 GAFC300-10 combination; do not expect an oil mist from this unit.
Working pressure range is 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). Operating temperature is -5 to 70 C and must not freeze. The drain bowl holds 60 cc and the unit weighs 500 g.
The L code sets the regulated band to 0.15-0.4 MPa (20-58 psi), which is about 44% of the standard type's 0.9 MPa ceiling, so it suits low-pressure applications but cannot deliver more. The K code indicates a reverse-flow (reflux) valve is fitted; this is an ordering difference, and its detailed function is covered in the catalogue pages not included in our data.
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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.