Airtac GAFR Adjustable Filter Regulator GAFR400N15LNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400N15LNWK 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 materialNylon
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight880 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFR Adjustable Filter Regulator GAFR400N15LNWK
The GAFR400N15LNWK is a filter & regulator with both functions in one body: it spins incoming air to separate liquid water and solid particles, then a balanced regulator holds a steady outlet pressure. This model has a 1/2in port, a 0.15-0.4 MPa (20-58 psi) lower-pressure range, and a 5 um element for finer filtration.
The nylon bowl holds 100 cc of condensate, and the unit weighs 880 g. It ships with a mounting bracket and a semi-auto plus manual drain. A reverse-flow (reflux) valve is fitted as an ordering difference, and no gauge is supplied; the 1/4in gauge connection is available if one is added later.
Airtac GAFR Adjustable Filter Regulator GAFR400N15LNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400N15LNWK |
|---|---|
| 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 | Nylon |
| 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 GAFR400N15LNWK
| 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". |
| (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. |
| 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 GAFR400N15LNWK Is Used
Precision valve control
Feed a bank of precision pneumatic valves on a 1/2in manifold. The 5 um element traps fine particles that could clog small orifices, and the lower-pressure range suits delicate actuation.
Machine tool header
Supply a single machine tool's air header with a steady 0.15-0.4 MPa output. The 100 cc bowl handles condensate from a moderately wet line, and the included bracket mounts firmly to the frame.
Test rig setup
Use on a lab or test rig where low, stable pressure is required. The semi-auto plus manual drain lets an operator clear the bowl on schedule, and the 880 g mass needs a proper panel mount.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400N15LNWK the Right Air-Prep Unit?
Choose the GAFR400 body for a 1/2in port with a 100 cc drain bowl and a flow envelope plotted to 7000 L/min at 0.7 MPa inlet. The nylon bowl is a build choice; the common 1.0 MPa max and -5 to 70 C rating apply to all bowl materials, so confirm compatibility for aggressive surroundings. This unit has a semi-auto plus manual drain, a 5 um element, and the mounting bracket included; the L type tops out at 0.4 MPa, so if the machine may ever need more, the standard S type is the right part. The K code adds a reverse-flow (reflux) valve, and the PT thread sets the gauge scale to MPa/psi. If oil is needed downstream, order the matching GAFC400-15 combination instead. 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 GAFR400N15LNWK FAQ
The GAFR400N15LNWK is a filter & regulator with a 1/2in port, a lower-pressure range of 0.15-0.4 MPa (20-58 psi), a max pressure of 1.0 MPa (145 psi), and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, has a 100 cc drain bowl, and weighs 880 g. The element is 5 um, and the drain is semi-auto plus manual.
The K code indicates the reverse-flow (reflux) valve is fitted as an ordering difference. The catalogue defers its function to a separate page, so this is noted as a build option only. If you need lubrication downstream, the matching GAFC400-15 combination adds a lubricator; this GAFR unit does not.
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Standard models are processed and dispatched in 3-5 business days.
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