
The AirTAC Airtac GAFC Air Service Unit GAFC400C15AL 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 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
This GAFC400C15AL is a two-piece F.R.L. combination: the filter and regulator share one body, and the lubricator is mounted beside them on a T-bracket. Air is cleaned and set to pressure first, then the lubricator adds a controlled oil mist last, so oil never travels back through the regulator seat. With a 1/2in port and 1810 g mass, it suits mid-size machine headers where a proper panel mount is expected rather than support from the tubing.
The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), and the 40 um element handles standard shop air. The metal bowl is specified by the C code, and the automatic drain clears condensate without an operator. A circular gauge is fitted, reading MPa and psi for the default PT thread.
| Model | Airtac GAFC Air Service Unit GAFC400C15AL |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Metal |
| 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. 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). |
| 15 | Port size 1/2". 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). |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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.
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 |
Feed a 1/2in line to a CNC lathe's way lubrication system, where the lower pressure range protects sensitive metering valves and the automatic drain handles condensate from continuous running.
Supply a multi-station assembly bench with filtered, regulated air at 0.3 MPa for pneumatic screwdrivers, keeping the oil mist separate from any blow-off nozzles downstream.
Run a carton erector's cylinder bank at 0.35 MPa, with the 185 cc oil bowl reducing how often an operator needs to top up lubricant during a shift.
Choose the GAFC400 body when your line needs the 1/2in port and the 100 cc condensate bowl with its 185 cc oil bowl; the catalogue flow curve is plotted to 6000 L/min at 0.7 MPa inlet, so it sits between the GAFC300's 3500 L/min envelope and the GAFC500's 7000 L/min figure. The L type tops out at 0.4 MPa, so if the machine may ever need more than that, step up to the standard S type instead. The automatic drain suits unattended operation, and the metal bowl is a build choice - confirm it matches your surroundings, as the shared specification does not change with material. The 40 um element is the default; the W option provides 5 um filtration if finer particles matter. Spares are orderable as GAFR400-15 and GAL400-15.
A 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range, so plan the inlet pressure with that margin in mind.
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 GAFR400-15 filter-regulator on that branch instead of the full combination.
It operates from 0.15 to 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). Temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32. The drain bowl holds 100 cc, the oil bowl holds 185 cc, and the unit weighs 1810 g.
The C code specifies a metal bowl, which is a build choice for the surroundings - confirm it suits your environment, as the catalogue gives no material-specific ratings. The A code adds an automatic drain, so condensate is expelled without an operator, which is useful for lines that run unattended or in humid conditions.
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