
The AirTAC Airtac GAFC Air Service Unit GAFC300C15LNW 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).
This AirTAC GAFC300C15LNW is a two-piece F.R.L. combination: a GAFR filter-regulator (filter and regulator in one body) paired with a GAL lubricator on a T-bracket. The 1/2in port and 1020 g mass place it in the mid-size class, suited for feeding multiple actuators or a small machine header. The 5 um element traps fine particles for sensitive downstream components.
The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. The metal bowl holds 60 cc of condensate, while the oil bowl holds 98 cc. With no gauge supplied, the 1/8in gauge connection is available for adding one. The unit operates from -5 to 70 C and must not freeze.
| Model | Airtac GAFC Air Service Unit GAFC300C15LNW |
|---|---|
| Series | GAFC300 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 | 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 | 60 cc |
| Capacity of oil bowl | 98 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 1020 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 GAFC300 is 1/8" if you add one.
| GAFC300 | GA300 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 08 = 1/4", 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). |
| N | No pressure gauge; 1/8" 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: GAFR300-15 filter & regulator, GAL300-15 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 | GAFC300 · 1/2" · curve to 3500 L/min |
|---|---|
| One size down | GAFC200 |
| One size up | GAFC400 (curve to 6000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Feed a 1/2in line to a CNC spindle lubrication system where the lower 0.4 MPa ceiling protects delicate metering valves and the 5 um element keeps fine abrasive dust out of the oil mist.
Supply a multi-station assembly conveyor's pneumatic logic with regulated air at 0.15-0.4 MPa, using the 98 cc oil bowl to lubricate several small cylinders between refills.
Maintain a stable lower pressure for film tensioning brakes on a packaging line, where the 60 cc metal bowl collects condensate from a humid production floor and the 5 um element protects fine orifices.
Choose this GAFC300C15LNW when your line needs a 1/2in port and a lower regulated pressure cap of 0.4 MPa. The metal bowl is specified by the C code, a build choice for environments where you need to confirm material suitability. The 5 um element (W) filters finer than the standard 40 um, at the cost of more frequent element service. The semi-auto drain dumps condensate on each pressure drop, with a manual drain for on-demand use. The PT thread carries a gauge scale of MPa/psi if you add a gauge to the 1/8in connection. The lubricator adds oil mist last, so if the line must stay oil-free, choose a plain GAFR filter-regulator instead. Spares are orderable as GAFR300-15 and GAL300-15. The 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range, so plan your 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 GAFR300-15 filter-regulator on that branch instead of the full combination.
The GAFC300C15LNW operates from 0.15 to 0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It works in temperatures from -5 to 70 C. The drain bowl holds 60 cc and the oil bowl holds 98 cc. Use ISO VG 32 lubricant. The complete unit weighs 1020 g.
The N after the port code means no gauge is supplied with this unit. The GAFC300 body has a 1/8in gauge connection, so you can add a circular gauge later if you need to read the set pressure. The PT thread uses a gauge scale of MPa/psi.
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