Airtac GAFC Air Service Unit GAFC400N15LWK
The AirTAC Airtac GAFC Air Service Unit GAFC400N15LWK is a genuine two-piece F.R.L. combination — a GA-series filter & regulator and a lubricator pre-assembled on one T-shape bracket with quick mounting clamps. It has 1/2" ports, a 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight1810 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 GAFC Air Service Unit GAFC400N15LWK
This GAFC400N15LWK is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator, mounted on a shared T-bracket with quick clamps. Air is cleaned and set to pressure in the first unit, then the lubricator introduces a metered oil mist downstream, so oil never travels back through the regulator seat. With a 1/2in port and 1810 g mass, it suits medium machine headers where a panel or frame mount is expected rather than tubing support.
The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), and the 5 um element traps finer particles for sensitive valves or instruments. The nylon bowl is specified by the N code, and the catalogue's common specification applies: max 1.0 MPa (145 psi), proof 1.5 MPa (215 psi), and -5 to 70 C operation without freezing. A circular gauge is fitted, reading MPa/psi for the default PT thread, and the reverse-flow (reflux) valve is included per the K code.
Airtac GAFC Air Service Unit GAFC400N15LWK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400N15LWK |
|---|---|
| Series | GAFC400 F.R.L. combination |
| 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 |
| Capacity of oil bowl | 185 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 1810 g |
Specifications follow the official AirTAC GAFC catalogue (pages 219-220). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAFC Air Service Unit GAFC400N15LWK
| GAFC400 | GA400 series F.R.L. unit — sets ports, 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) | Circular pressure gauge fitted. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAFR400-15 filter & regulator, GAL400-15 lubricator — both share this body and port. A GAFC has two units, not three: the filter and the regulator are one body.
Size Class & Flow Envelope
- GAFC2001/8"-1/4" · 1750 L/min
- GAFC3001/4"-1/2" · 3500 L/min
- GAFC4003/8"-1/2" · 6000 L/min
- GAFC5003/4" · 7000 L/min
- GAFC6003/4"-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 | GAFC400 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAFC300 |
| One size up | GAFC500 (curve to 7000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Where the Airtac GAFC Air Service Unit GAFC400N15LWK Is Used
Precision valve control
Feed a bank of fine pneumatic valves on a packaging line where the 5 um element protects tight clearances and the lower pressure range prevents over-stroking sensitive actuators.
Medium machine header
Supply a multi-station assembly machine with cleaned, regulated, and lubricated air at a consistent 0.3 MPa setpoint, with the 185 cc oil bowl reducing refill frequency during long shifts.
Instrument air bench
Set up a test bench for pneumatic components where the 0.15-0.4 MPa band matches low-pressure calibration needs and the 5 um element keeps particulates out of the devices under test.
Is the Airtac GAFC Air Service Unit GAFC400N15LWK the Right Air-Prep Unit?
The GAFC400 body offers 3/8in and 1/2in ports; this 1/2in version pairs with the 100 cc condensate bowl and 185 cc oil bowl, and its catalogue flow curve is plotted to 6000 L/min at 0.7 MPa inlet. The nylon bowl is a build choice, but the shared specification does not change with material, so confirm it suits your surroundings. The semi-auto drain dumps on pressure drop while the manual drain works on demand, and the 5 um element means more frequent service than the 40 um standard. The L type tops out at 0.4 MPa, so if your machine may ever need more, this is the wrong part. Spares are orderable separately as the GAFR400-15 filter & regulator and the GAL400-15 lubricator. Max supply of 1.0 MPa 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
- ✓ Thread & gauge scale (PT / G / NPT)
Installation & Maintenance Notes
- check Install with the airflow arrow: filter-regulator first, lubricator last.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Fill the oil bowl with ISO VG 32 or equivalent only.
- check Drain condensate before the 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 1810 g unit on its bracket, not on the tubing.
The lubricator adds an oil mist downstream of the regulator. If any part of the line must stay oil-free, use a plain GAFR400-15 filter-regulator on that branch instead of the full combination.
Airtac GAFC Air Service Unit GAFC400N15LWK FAQ
This F.R.L. combination operates at 0.15-0.4 MPa (20-58 psi) with a max pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32. It has a 100 cc drain bowl and a 185 cc oil bowl, and the unit weighs 1810 g.
The K indicates a reverse-flow (reflux) valve is fitted to this GAFC400N15LWK. The catalogue shows it as a separate pneumatic symbol, and it is part of the ordering code for this unit. The spares path remains the GAFR400-15 filter & regulator and the GAL400-15 lubricator.
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