
The AirTAC Airtac GAFC Air Service Unit GAFC300N10SWK 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 - 0.9 MPa (20 - 130 psi).
The GAFC300N10SWK is a two-piece F.R.L. combination where the filter and regulator share one body, and a lubricator is mounted alongside on a T-bracket. With a 3/8in port and a 1020 g mass, this size class suits medium-duty machine circuits rather than small jigs. The nylon bowl is specified by the N before the port code, and the 5 um element traps finer particles than the standard 40 um grade.
Air enters the first body where solids and moisture are removed and pressure is set to 0.15-0.9 MPa (20-130 psi). The lubricator then adds a metered oil mist downstream, so oil never passes back through the regulator seat. A circular gauge is fitted with an MPa/psi scale for the default PT thread, and the semi-auto drain dumps condensate each time pressure drops while the manual drain offers on-demand release.
| Model | Airtac GAFC Air Service Unit GAFC300N10SWK |
|---|---|
| Series | GAFC300 F.R.L. combination |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Nylon |
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
| GAFC300 | GA300 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 08 = 1/4", 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. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAFR300-10 filter & regulator, GAL300-10 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 | GAFC300 · 3/8" · curve to 3500 L/min |
|---|---|
| One size down | GAFC200 |
| One size up | GAFC400 (curve to 6000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
The 5 um element protects pilot valves and precision regulators on a stamping press control cabinet, where fine particles could otherwise score spools and seats.
Feed a 3/8in manifold serving pneumatic screwdrivers on an electronics assembly conveyor, where the 98 cc oil bowl supports a full shift of tool lubrication.
Condition air for a CNC lathe's chuck cylinder and coolant valve actuators, using the 60 cc condensate bowl to handle moisture from a humid plant air supply.
This model carries the K code for a reverse-flow (reflux) valve, which the catalogue draws as a separate pneumatic symbol. The 5 um element suits precision valves or instrument air but requires more frequent element service than the 40 um standard. The nylon bowl is a build choice; the shared specification of 1.0 MPa max and -5 to 70 C does not change with material, so confirm nylon suits your surroundings. The semi-auto plus manual drain pair works for attended lines where someone can check the 60 cc condensate bowl and 98 cc oil bowl. For an oil-free line, choose a plain GAFR300-10 filter-regulator instead of this lubricator-equipped set. Spares are orderable as GAFR300-10 and GAL300-10. With a 1.0 MPa max supply, there is only about 0.1 MPa of headroom above the 0.9 MPa top of the regulated range, so plan the supply pressure near 1.0 MPa if you need the full 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 GAFR300-10 filter-regulator on that branch instead of the full combination.
This F.R.L. combination operates at 0.15-0.9 MPa (20-130 psi) with a maximum 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 60 cc and the oil bowl 98 cc, with a total weight of 1020 g.
The K code specifies a reverse-flow (reflux) valve fitted to the unit. The catalogue shows this as a separate pneumatic symbol in the circuit diagram. The valve is included as part of the assembled combination, so no separate installation is needed.
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