Airtac GAFR Adjustable Filter Regulator GAFR40015ALNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015ALNWK 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
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015ALNWK
The GAFR40015ALNWK is a genuine AirTAC filter & regulator, combining air filtration and pressure regulation in a single body. It handles a 1/2in port and delivers a lower pressure range of 0.15-0.4 MPa (20-58 psi), with a 5 um element for fine particle removal. This unit has no lubricator; it only filters and regulates.
The diversion structure inside spins the air to separate liquid water and solid particles into the 100 cc drain bowl. The automatic drain clears condensate without manual intervention. Weighing 880 g, this unit is sized for a machine header or multi-station line, and it includes a mounting bracket for secure installation.
Airtac GAFR Adjustable Filter Regulator GAFR40015ALNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015ALNWK |
|---|---|
| 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 | 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 | 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 GAFR40015ALNWK
| 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". |
| 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). |
| (blank) | Mounting bracket included. |
| N | No pressure gauge; 1/4" gauge connection. |
| 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 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 GAFR40015ALNWK Is Used
Precision Valve Control
Feed a bank of precision pneumatic valves on a packaging machine with clean, regulated air at a stable lower pressure, using the 5 um element to protect fine internal passages.
Machine Header Supply
Mount this unit on a machine header to supply a multi-station assembly line with filtered air, where the automatic drain reduces maintenance in a continuously running operation.
Instrument Air Feed
Use it to provide a clean, low-pressure air supply to gauges or sensors in a test rig, where the 5 um filtration and steady regulation protect sensitive instruments.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015ALNWK the Right Air-Prep Unit?
Choose the GAFR400 body for a 1/2in port and a flow envelope plotted to 7000 L/min at 0.7 MPa inlet. The lower-pressure (L) type is suited for applications needing only up to 0.4 MPa (58 psi); if your machine may require more, select the standard type instead. The automatic drain (A) is ideal for unattended operation, while the 5 um element (W) traps finer particles for sensitive equipment. This model includes the mounting bracket and has no gauge; the 1/4in gauge connection is available if you add one later. The PT thread matches a MPa/psi gauge scale, and the reverse-flow (reflux) valve is fitted. For lines needing oil downstream, order the matching GAFC400-15 combination instead. Note that 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 GAFR40015ALNWK FAQ
The GAFR40015ALNWK has a 1/2in port, a lower pressure range of 0.15-0.4 MPa (20-58 psi), a maximum pressure of 1.0 MPa (145 psi), and a proof pressure of 1.5 MPa (215 psi). It operates in temperatures from -5 to 70 C, has a 100 cc drain bowl, and weighs 880 g. The unit features a 5 um element and an automatic drain.
The reverse-flow (reflux) valve is fitted on this model as an ordering difference. Its specific function is detailed in the catalogue, but it is a factory-fitted option that distinguishes this variant from a standard GAFR40015ALN.
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