
The AirTAC Airtac GAFC Air Service Unit GAFC400C10SK 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 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
This GAFC400C10SK is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator on a T bracket. The 3/8in port and 1810 g mass put it in the mid-size class, where the 100 cc condensate bowl and 185 cc oil bowl mean fewer service visits than smaller bodies. It regulates from 0.15-0.9 MPa (20-130 psi) with a 40 um element.
The metal bowl is specified by the C code; the catalogue gives no impact or chemical data, so confirm it suits your surroundings. A circular gauge is fitted, reading MPa/psi on the default PT thread. The reverse-flow (reflux) valve is included, shown as a separate symbol in the catalogue. Air is filtered and set to pressure first, then oil mist is added last, so oil never passes back through the regulator seat.
| Model | Airtac GAFC Air Service Unit GAFC400C10SK |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 3/8" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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 |
| 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.
| GAFC400 | GA400 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 10 | Port size 3/8". This body offers 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
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 3/8in line to a CNC spindle air cylinder, where the 40 um element protects the valve and the metal bowl handles shop-floor conditions.
Supply a multi-fixture workbench with regulated air at 0.15-0.9 MPa, using the 185 cc oil bowl to keep pneumatic screwdrivers lubricated through a shift.
Set up a bench test for actuators, reading the set pressure on the circular gauge and relying on the semi-auto drain to clear condensate between runs.
Choose this GAFC400C10SK when a 3/8in port and a 1810 g body fit your panel layout. The metal bowl is a build choice, not a performance upgrade, since the 1.0 MPa max and -5 to 70 C range apply to all bowl materials. The semi-auto drain dumps on pressure drop and the manual drain works on demand, so this unit suits attended lines. The 40 um element is the standard grade; step to the 5 um W option for finer filtration. The PT thread carries a MPa/psi gauge scale, matching the default. Spares are orderable as GAFR400-10 and GAL400-10, so a worn part does not scrap the whole assembly. With a 1.0 MPa max supply, there is about 0.1 MPa of headroom above the 0.9 MPa regulated top, so plan the inlet pressure accordingly.
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 operates from 0.15-0.9 MPa (20-130 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. It has a 100 cc drain bowl and a 185 cc oil bowl, weighs 1810 g, and uses ISO VG 32 or equivalent lubricant.
The K code means a reverse-flow (reflux) valve is fitted. The catalogue draws this as a separate pneumatic symbol, and its details are covered on a dedicated page. This model also has a metal bowl (C), a semi-auto plus manual drain, and a circular gauge reading MPa/psi.
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