
The AirTAC Airtac GAFC Air Service Unit GAFC400C15SN 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 - 0.9 MPa (20 - 130 psi).
This AirTAC GAFC400C15SN is a two-piece F.R.L. combination built around a 1/2in port. The filter and regulator share one body, so the set is a filter-regulator plus a separate lubricator mounted on a T bracket. It handles 0.15-0.9 MPa (20-130 psi) with a 40 um element, and the metal bowl is specified by the C code. The 100 cc condensate bowl and 185 cc oil bowl are both sized for a mid-range production line, and the whole unit weighs 1810 g.
Air passes through the filter-regulator body first, where solids and moisture drop out and pressure is set, then the lubricator adds a metered oil mist downstream. Because the oil enters after the regulator seat, it never travels back through the pressure control mechanism. The gauge is not fitted on this model, so the 1/4in gauge connection on the body is where an operator would add one to read the set pressure.
| Model | Airtac GAFC Air Service Unit GAFC400C15SN |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 1/2" (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. 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. |
|---|---|
| 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| N | No pressure gauge; 1/4" gauge connection. |
| (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 coolant valve manifold, where the 100 cc condensate bowl handles moisture from frequent pressure cycling and the metal bowl suits a shop floor environment.
Supply a multi-operator assembly bench with regulated air for pneumatic screwdrivers and presses, using the 185 cc oil bowl to keep lubricant available across several shifts.
Run a carton-sealing machine's cylinder bank from this unit, where the 6000 L/min flow envelope at 0.7 MPa inlet provides the volume for simultaneous actuator movements.
The GAFC400 body suits a machine header or multi-station line where a 1/2in port is the main air feed. The C code specifies a metal bowl, which is a build choice to confirm against your surroundings; the catalogue gives no impact or chemical data for any bowl material. This model carries the semi-auto drain, which dumps condensate each time pressure drops, plus a manual drain for on-demand use. The 40 um element is the standard grade, and the PT thread comes with a gauge scale in MPa/psi if a gauge is added later. The two units are orderable separately as GAFR400-15 and GAL400-15, so a damaged bowl or clogged element does not force a full assembly replacement. A 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan the inlet pressure near 1.0 MPa if you need the full regulated output.
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 on air with a standard pressure range of 0.15-0.9 MPa (20-130 psi). Maximum supply pressure is 1.0 MPa (145 psi), and proof pressure is 1.5 MPa (215 psi). Temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32. The condensate 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 material choice you should confirm against your operating environment; the catalogue does not provide impact or chemical resistance data. The N after the port code means no gauge is supplied, so the 1/4in gauge connection on the body is where you would add one. The semi-auto drain clears condensate on pressure drops, and a manual drain is also fitted for direct operation.
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