Airtac GAFR Adjustable Filter Regulator GAFR40015LJNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015LJNW 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 materialPC
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015LJNW
The GAFR40015LJNW is a genuine AirTAC filter & regulator that combines both functions in a single body, saving rail space and reducing potential leak points compared to separate units. This 1/2in port model operates in the lower pressure band of 0.15-0.4 MPa (20-58 psi) and uses a 5 um element for fine filtration.
Its 100 cc condensate bowl collects water and solids separated by the internal diversion structure. Weighing 880 g, this unit is suited for panel or frame mounting rather than being supported by tubing. The balanced regulator mechanism helps maintain a steady outlet pressure as supply varies.
Airtac GAFR Adjustable Filter Regulator GAFR40015LJNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015LJNW |
|---|---|
| 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 | 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. No gauge is supplied with this model — the gauge connection on a GAFR400 is 1/4" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR40015LJNW
| 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. |
| N | No pressure gauge; 1/4" gauge connection. |
| 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 GAFR40015LJNW Is Used
Precision valve control
Feed a bank of precision pneumatic valves that require clean, regulated air at lower pressures. The 5 um element protects sensitive internals from fine particulates.
Medium machine header
Supply a single-station machine header with 1/2in piping. The 100 cc bowl handles typical condensate buildup between maintenance shifts.
Test bench setup
Use on a test bench where lower regulated pressures are needed for calibration. The semi-auto drain allows quick manual purging during frequent setup changes.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015LJNW the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow applications; its 7000 L/min flow curve at 0.7 MPa inlet places it between the smaller GAFR300 (3500 L/min) and larger GAFR500 (8000 L/min). The PC bowl is the standard build choice, while the 5 um element suits precision equipment needing finer particle removal than the standard 40 um. This model includes both semi-auto and manual drains, and omits the mounting bracket (J) for installations using existing supports. No gauge is fitted (N), so the 1/4in gauge connection is available if you add one later. The PT thread carries an MPa/psi scale. For lines needing oil downstream, order the matching GAFC400-15 combination instead. With the L-type regulator, 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 GAFR40015LJNW FAQ
This filter & regulator has a 1/2in port, operates at 0.15-0.4 MPa (20-58 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. Temperature range is -5 to 70 C. The drain bowl holds 100 cc and the unit weighs 880 g.
The N code means no gauge is supplied, leaving the 1/4in gauge connection available if you add one later. The J code omits the mounting bracket, which suits installations where the unit mounts to an existing panel or frame rather than using the included bracket.
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 GAFR40015LJNW
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.