
The AirTAC Airtac GAFC Air Service Unit GAFC300N10SK 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).
The GAFC300N10SK is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator, mounted on a shared T-bracket with quick clamps. With a 3/8" port and 1020 g mass, it suits medium-duty machine circuits where a compact footprint matters. The nylon bowl is specified by the N code, and the 40 um element handles standard shop air.
Air enters the first body where solids and moisture are filtered out 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 travels back through the regulator seat. The 60 cc condensate bowl and 98 cc oil bowl define the service interval, and the semi-auto drain dumps on pressure drop while the manual drain works on demand.
| Model | Airtac GAFC Air Service Unit GAFC300N10SK |
|---|---|
| Series | GAFC300 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 | 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. |
| (blank) | Filtering grade 40 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 |
Feed a 3/8" port to a CNC jig or clamping fixture where the 0.15-0.9 MPa range gives fine pressure control for consistent part holding.
Power single-acting cylinders on a small assembly station, with the 60 cc condensate bowl handling moisture from a humid compressor line.
Provide regulated air to a leak-test fixture or gauge calibration bench, where the 40 um element protects sensitive test equipment.
Choose the GAFC300N10SK when you need a 3/8" port with a nylon bowl and a reverse-flow valve fitted. The nylon bowl is a build choice, but the catalogue gives no impact or chemical data, so confirm it suits your environment. The semi-auto drain clears condensate when pressure drops, and the manual drain gives you direct control. The circular gauge reads in MPa/psi for the PT thread, and the 40 um element is the standard grade for general pneumatic use.
If you need finer filtration, the W option changes to a 5 um element, but expect more frequent element service. The K code adds the reverse-flow valve, which the catalogue shows as a separate symbol. Spare parts are orderable as GAFR300-10 and GAL300-10, so you can replace a worn element or bowl without buying a whole assembly. For oil-free lines, skip the lubricator and choose a plain GAFR filter-regulator instead. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated 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 GAFR300-10 filter-regulator on that branch instead of the full combination.
The GAFC300N10SK operates at 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). It works in -5 to 70 C temperatures and needs ISO VG 32 lubricant. The drain bowl holds 60 cc, the oil bowl 98 cc, and the unit weighs 1020 g.
The K code specifies a reverse-flow (reflux) valve fitted to the unit. The catalogue shows it as a separate pneumatic symbol, and its detailed function is covered on a separate page. This model includes it as a factory-fitted option.
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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.