Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNK 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 - 0.9 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 grade40 µm
- Bowl materialNylon
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNK
The GAFR400N15ASNK is a filter and regulator combined into a single body, eliminating the need for separate units. It handles 1/2in ports and operates in the standard 0.15-0.9 MPa (20-130 psi) range, with a 40 um element for filtration.
This model features a nylon bowl and an automatic drain, making it suitable for wet or unattended lines. The balanced regulator mechanism holds the outlet pressure steady as supply varies, and the pressed-in self-locking knob resists drift from vibration, ensuring stable performance.
Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 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 GAFR400N15ASNK
| 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. |
| (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 GAFR400N15ASNK Is Used
Precision Valve Control
Feed a bank of precision pneumatic valves on a machine tool with stable, filtered air at a set pressure, thanks to the balanced regulator.
Machine Header Supply
Supply a 1/2in header for a multi-station assembly machine, where the 100 cc bowl and automatic drain minimize maintenance stops.
Test Rig Air Supply
Provide clean, regulated air to a laboratory test rig requiring a steady 0.4 MPa, with the self-locking knob holding the setting.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400N15ASNK the Right Air-Prep Unit?
Choose this GAFR400 for applications needing 1/2in ports and a 100 cc condensate bowl, which holds about 1.7x the condensate of the GAFR300's 60 cc bowl, reducing drain frequency. The nylon bowl is a build choice; confirm compatibility for aggressive surroundings. The automatic drain (A) handles condensate without manual intervention. The standard type (S) covers 0.15-0.9 MPa. The mounting bracket is included. No gauge is fitted; the 1/4in gauge connection allows adding one later. The 40 um element suits general use. PT thread with MPa/psi scale. The reverse-flow (reflux) valve (K) is fitted as an ordering difference. For lubrication downstream, order the matching GAFC400-15 combination. Remember, 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 GAFR400N15ASNK FAQ
It is a filter & regulator with a 1/2in port, standard pressure range of 0.15-0.9 MPa (20-130 psi), max pressure of 1.0 MPa (145 psi), and proof pressure of 1.5 MPa (215 psi). Operating temperature is -5 to 70 C. The drain bowl holds 100 cc and the unit weighs 880 g.
The automatic drain expels condensate from the 100 cc bowl without manual intervention, making it ideal for unattended operation or lines with high moisture content. This model also includes a reverse-flow (reflux) valve as an ordering difference.
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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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Most inquiries answered within 7-8 hours.
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