
The AirTAC Airtac GAFC Air Service Unit GAFC400N10ALNW 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 3/8" ports, a 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
This GAFC400N10ALNW is a two-piece F.R.L. combination: the filter and regulator share one body, and the lubricator is mounted on a T-bracket with quick clamps. It handles a 3/8in port and operates in the lower-pressure band of 0.15-0.4 MPa (20-58 psi), with a 5 um element for finer filtration.
The nylon bowl holds 100 cc of condensate and the oil bowl holds 185 cc, so the unit runs longer between services. The automatic drain clears water without an operator, and the 1810 g mass means it needs a proper panel mount rather than tubing support. No gauge is fitted; the 1/4in gauge connection is ready for one if you add it later.
| Model | Airtac GAFC Air Service Unit GAFC400N10ALNW |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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 |
| 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. No gauge is supplied with this model — the gauge connection on a GAFC400 is 1/4" if you add one.
| 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). |
| 10 | Port size 3/8". This body offers 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| 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. |
Constituent units, orderable separately as spares: GAFR400-10 filter & regulator, GAL400-10 lubricator — both share this body and port. A GAFC has two units, not three: the filter and the regulator are one body.
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 · 3/8" · curve to 6000 L/min |
|---|---|
| One size down | GAFC300 |
| One size up | GAFC500 (curve to 7000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Feed a pneumatic screwdriver or torque tool on an assembly bench where the supply is regulated below 0.4 MPa and the 5 um element keeps wear particles out of the tool's air motor.
Supply a small laboratory fixture or test rig that runs on low-pressure air, where the automatic drain prevents water from reaching sensitive instrumentation and the nylon bowl suits a clean lab environment.
Use on a low-pressure paint or coating line where the 3/8in port feeds a spray gun and the 5 um element traps fine particles that could clog the nozzle, with the automatic drain handling condensate.
Choose this GAFC400N10ALNW when your circuit stays below 0.4 MPa and you want the finer 5 um element to protect precision valves. The nylon bowl is a build choice, not a performance upgrade, so confirm it suits your environment. The automatic drain suits wet or unattended lines, and the PT thread reads MPa/psi if you fit a gauge.
The filter and regulator are one unit, so the spares are just GAFR400-10 and GAL400-10. If the line must stay oil-free, skip the lubricator and order a plain GAFR400-10 instead. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above the 0.4 MPa top of the range, so set the regulator well below the supply pressure.
Quick checklist
The lubricator adds an oil mist downstream of the regulator. If any part of the line must stay oil-free, use a plain GAFR400-10 filter-regulator on that branch instead of the full combination.
This F.R.L. combination works with air 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). It operates from -5 to 70 C, uses ISO VG 32 oil, has a 100 cc drain bowl and 185 cc oil bowl, and weighs 1810 g. The 5 um element filters the air before the lubricator adds oil mist.
The N in the code after the port means no gauge is supplied, so you cannot read the set pressure without adding one. The gauge connection on the GAFC400 body is 1/4in, and the PT thread uses an MPa/psi scale if you fit a compatible gauge.
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