Airtac GAFR Adjustable Filter Regulator GAFR400C15LNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15LNWK 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 materialMetal
- 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 GAFR400C15LNWK
The GAFR400C15LNWK is a filter and regulator combined into one body, saving rail space and reducing potential leak points compared to separate units. It handles a 1/2in port and weighs 880 g, making it a mid-size choice for machine headers.
This lower-pressure version regulates from 0.15 to 0.4 MPa (20-58 psi) and uses a 5 um element to trap fine particles. The metal bowl and semi-auto plus manual drain suit applications where condensate is checked regularly.
Airtac GAFR Adjustable Filter Regulator GAFR400C15LNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15LNWK |
|---|---|
| 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 | Metal |
| 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 GAFR400C15LNWK
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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 GAFR400C15LNWK Is Used
Precision valve control
Feed a bank of precision pneumatic valves that require clean, regulated air at low pressure. The 5 um element protects sensitive internals from fine abrasive dust.
Machine tool header
Mount on a machine tool header supplying multiple actuators. The 100 cc metal bowl handles condensate from a shift of operation, and the bracket secures the 880 g unit firmly.
Low-pressure test rig
Use in a test rig where outlet pressure must stay below 0.4 MPa. The balanced regulator holds the setpoint as supply varies, and the semi-auto drain lets you purge manually.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15LNWK the Right Air-Prep Unit?
Choose the GAFR400 body for 3/8in or 1/2in ports; the 1/2in version here flows to a 7000 L/min envelope at 0.7 MPa inlet, stepping up from the GAFR300's 3500 L/min. The metal bowl resists impacts better than PC, and the 5 um element filters finer than the standard 40 um grade. This model includes the mounting bracket but omits the gauge, so plan to add one via the 1/4in connection if you need to read pressure. The reverse-flow valve is fitted as an ordering difference. If your line needs oil downstream, order the matching GAFC400-15 combination instead. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above the 0.4 MPa top of this unit's regulated 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 GAFR400C15LNWK FAQ
The GAFR400C15LNWK is a filter & regulator with a 1/2in port, working range 0.15-0.4 MPa (20-58 psi), max pressure 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), temperature range -5 to 70 C, 100 cc drain bowl, and weight 880 g. It has a 5 um element, metal bowl, semi-auto plus manual drain, and no gauge.
The L code sets the lower pressure range of 0.15-0.4 MPa, suitable for applications that never need more than 58 psi. The N after the port means no gauge is supplied; the 1/4in gauge connection is available if you add one later. The reverse-flow valve (K) is fitted as an ordering difference.
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