Airtac GAFR Adjustable Filter Regulator GAFR40015LNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015LNW 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 GAFR40015LNW
The GAFR40015LNW is a filter and pressure regulator combined in a single body, saving rail space and reducing potential leak points compared to separate units. It handles a 1/2in port and delivers a lower pressure range of 0.15-0.4 MPa (20-58 psi) with a fine 5 um filter element.
This 880 g unit includes the mounting bracket and uses a clear PC bowl with both semi-auto and manual drains. The diversion structure spins incoming air to separate liquid water and solid particles into the 100 cc condensate bowl, while the balanced regulator maintains the set outlet pressure as supply varies.
Airtac GAFR Adjustable Filter Regulator GAFR40015LNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015LNW |
|---|---|
| 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 | Included |
| 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 GAFR40015LNW
| 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). |
| (blank) | Mounting bracket included. |
| 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 GAFR40015LNW Is Used
Precision Fixturing
Feed a 5 um filtered, regulated air supply to precision clamping fixtures on a machining center. The lower pressure range protects delicate workholding from over-pressurization.
Laboratory Air
Supply clean, low-pressure air to a lab bench for pneumatic actuators on testing equipment. The fine 5 um element helps protect sensitive valves and instruments from particulate contamination.
Assembly Stations
Power pneumatic screwdrivers or presses on an assembly line where consistent, lower pressure is critical. The 100 cc bowl reduces the frequency of condensate checks in a busy production environment.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015LNW the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow lines needing a 1/2in port and a 100 cc drain bowl. The L type limits output to 0.4 MPa, so verify your system never requires more; if it does, select the standard S type instead. The 5 um element traps finer particles than the standard 40 um, making it suitable for precision equipment, though it will need more frequent servicing. The included bracket simplifies mounting; the PC bowl suits general environments, and the semi-auto plus manual drain gives you both automatic purging and a manual override. No gauge is fitted, but the 1/4in gauge connection allows easy addition. If downstream lubrication is needed, order the GAFC400-15 combination instead. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above this unit's 0.4 MPa regulated top.
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 GAFR40015LNW FAQ
This filter & regulator has a 1/2in port, a lower pressure range of 0.15-0.4 MPa (20-58 psi), and a maximum supply pressure of 1.0 MPa (145 psi). The proof pressure is 1.5 MPa (215 psi), and the operating temperature range is -5 to 70 C. It comes with a 5 um element, a 100 cc drain bowl, and weighs 880 g.
No, the 'N' in the code GAFR40015LNW indicates no gauge is included. However, the GAFR400 body has a 1/4in gauge connection, so you can easily add an AirTAC gauge if you need to read the outlet pressure directly.
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Covers non-human-caused product damage.
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