Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNW 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 - 0.9 MPa (20 - 130 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size1/2"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialNylon
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNW
The GAFR400N15ASNW is a filter and regulator combined into a single body, saving rail space and reducing potential leak points compared to separate units. It handles a 1/2in port with a standard pressure range of 0.15-0.9 MPa (20-130 psi) and uses a 5 um element for finer filtration.
This model features a nylon bowl and an automatic drain, making it suitable for wet or unattended lines. The diversion structure spins incoming air to separate liquid water and solid particles into the 100 cc condensate bowl, while the balanced regulator holds the set outlet pressure steady as supply varies.
Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNW |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Nylon |
| 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 GAFR400N15ASNW
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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 GAFR400N15ASNW Is Used
Precision valve control
Feed a bank of precision pneumatic valves with clean, regulated air at a consistent pressure, using the 5 um element to protect sensitive internal components.
Medium machine header
Supply a medium-sized machine header or a multi-station assembly line where a 1/2in port and 880 g body provide stable flow for multiple actuators.
Automated test rigs
Use in automated test rigs that require a steady air supply for repeated cycles, with the automatic drain reducing maintenance in continuous operation.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNW the Right Air-Prep Unit?
Choose GAFR400 for medium-flow applications; its 7000 L/min flow curve at 0.7 MPa inlet places it above the GAFR300's 3500 L/min envelope but below the GAFR500's 8000 L/min. The nylon bowl offers a build alternative to PC or metal, and the automatic drain (A) handles condensate without manual intervention. This unit includes the mounting bracket, omits the gauge (connection is 1/4in if added later), and uses a 5 um element for finer particle removal. The standard pressure type (S) covers 0.15-0.9 MPa, and PT threads are fitted. If oil is needed downstream, order the matching GAFC400-15 combination instead. Note that 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 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 GAFR400N15ASNW FAQ
This filter & regulator has a 1/2in port, working pressure range of 0.15-0.9 MPa (20-130 psi), maximum pressure of 1.0 MPa (145 psi), and 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 'N' in the code after the port indicates no gauge is supplied with this unit. If you need to read the set pressure, you can add a gauge later using the 1/4in gauge connection on the GAFR400 body. The pressure cannot be read without adding one.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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