Airtac GAFR Adjustable Filter Regulator GAFR400C15LJW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15LJW 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 1/2" 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 size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialMetal
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight880 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 GAFR400C15LJW
The GAFR400C15LJW is a filter and pressure regulator combined into a single body, removing the need for separate GAF and GAR units. This 1/2in version operates in the lower 0.15-0.4 MPa (20-58 psi) range and comes with a 5 um element for trapping fine particles.
Its metal bowl holds 100 cc of condensate, and the unit weighs 880 g, indicating a substantial size class that requires proper mounting. The integrated diversion structure spins incoming air to separate liquid water and solid debris, while the balanced regulator maintains a steady outlet as supply pressure varies.
Airtac GAFR Adjustable Filter Regulator GAFR400C15LJW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15LJW |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Metal |
| 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 | 100 cc |
| Bracket | Not included (J) |
| Weight | 880 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 GAFR400C15LJW
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 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. |
| (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 GAFC400-15 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 | GAFR400 · 1/2" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-15 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR400C15LJW Is Used
Precision valve control
Feed a bank of precision pneumatic valves that require stable, low pressure below 0.4 MPa. The 5 um element protects sensitive internal orifices from fine particulates.
Laboratory air supply
Supply filtered air to lab fixtures or test benches where a consistent lower pressure is critical. The metal bowl and fine filtration suit controlled environments.
Single-station assembly
Power a dedicated assembly station with a single actuator or small tool. The 1/2in port and 100 cc bowl handle moderate duty cycles without frequent draining.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15LJW the Right Air-Prep Unit?
Choose the GAFR400 body for 1/2in port applications needing up to 7000 L/min flow (plotted at 0.7 MPa inlet). The metal bowl (C) suits demanding environments, while the 5 um element (W) provides finer filtration than the standard 40 um. This model has no mounting bracket (J), so plan for panel mounting or an existing bracket. The semi-auto and manual drains are both fitted, and the circular gauge shows MPa/psi. The L type tops out at 0.4 MPa, so verify your system never needs more. If oil is required downstream, order the matching GAFC400-15 combination instead. 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 (1/2" 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 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 880 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 GAFC400-15 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR400C15LJW FAQ
The GAFR400C15LJW has a working pressure range of 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 operates from -5 to 70 C and must not freeze. The metal drain bowl holds 100 cc, and the unit weighs 880 g.
The L code designates the lower-pressure type, capping the regulated output at 0.4 MPa for applications that never need more. The J code omits the mounting bracket, which is useful when panel-mounting or using an existing bracket; you must supply your own mounting solution.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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