Airtac GAFR Adjustable Filter Regulator GAFR40015LJK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015LJK 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 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 size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade40 µm
- Bowl materialPC
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015LJK
The GAFR40015LJK is a filter and regulator combined into a single body, so it cleans incoming air and stabilizes outlet pressure without needing separate units. This model uses a 1/2in port, operates in the lower 0.15-0.4 MPa (20-58 psi) range, and comes with a 40 um element.
Its 100 cc condensate bowl collects water and solid particles spun out by the diversion structure. The pressed-in self-locking knob resists drift from vibration, keeping the set pressure steady during machine operation. A circular gauge with MPa/psi scale is fitted for direct reading.
Airtac GAFR Adjustable Filter Regulator GAFR40015LJK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015LJK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | PC |
| 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 GAFR40015LJK
| GAFR400 | GA400 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). |
| 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. |
| (blank) | Filtering grade 40 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 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 GAFR40015LJK Is Used
Precision valve actuation
Feed a bank of precision pneumatic valves that require a stable, lower regulated pressure. The balanced regulator holds the setpoint as supply varies, and the 40 um element protects valve internals from particulate.
Machine tool coolant lines
Supply a consistent 0.15-0.4 MPa air signal to coolant control valves on a machining center. The 100 cc bowl captures water and solids from the line, reducing the chance of clogged orifices.
Test bench air supply
Provide a clean, regulated air source for a laboratory test fixture that operates within the lower pressure band. The included gauge lets operators verify the set pressure at a glance, and the self-locking knob holds the setting during repeated cycles.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015LJK the Right Air-Prep Unit?
Choose the GAFR400 body when you need a 1/2in port with a 100 cc drain bowl and a flow curve plotted to 7000 L/min at 0.7 MPa inlet; step down to the GAFR300 for a 3/8in port and 60 cc bowl, or up to the GAFR500 for 3/4in and 108 cc. This unit has no mounting bracket (J code), so plan for panel mounting or an existing bracket. The PC bowl suits general shop air, while the semi-auto plus manual drain lets you empty condensate on a schedule or automatically when pressure drops. The 40 um element handles standard particulate, and the PT thread means the gauge reads MPa/psi. The reverse-flow (reflux) valve is fitted as an ordering difference. If your line needs oil downstream, order the matching GAFC400-15 combination instead. Note that 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 GAFR40015LJK FAQ
The GAFR40015LJK is a filter & regulator with a 1/2in port, a 100 cc drain bowl, and a weight of 880 g. It operates in the lower pressure range of 0.15-0.4 MPa (20-58 psi). Maximum pressure is 1.0 MPa (145 psi) and proof pressure is 1.5 MPa (215 psi). The temperature range is -5 to 70 C. It has a 40 um element, a PC bowl, a semi-auto plus manual drain, and a fitted circular gauge.
The L in the code indicates the lower pressure type, which tops out at 0.4 MPa (58 psi) instead of the standard 0.9 MPa. This suits applications that only need a modest regulated pressure. The J code means the mounting bracket is not included, so you must use an existing bracket or panel-mount the unit. This model also has the reverse-flow (reflux) valve fitted, which is an ordering difference.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAFR Adjustable Filter Regulator GAFR40015LJK
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.