The AirTAC Airtac GAFC Air Service Unit GAFC300N15LNWK 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 GAFC300N15LNWK is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator on a single T-bracket. The 1/2in port and 1020 g mass place it in the mid-size class, suitable for a machine header feeding several actuators. It works in the lower pressure band of 0.15-0.4 MPa (20-58 psi), with a 5 um element that traps finer particles than the standard 40 um grade.
The nylon bowl holds 60 cc of condensate, while the separate oil bowl holds 98 cc, so the unit runs longer between refills than smaller bodies. No gauge is supplied, but the 1/8in gauge connection allows one to be added later. A reverse-flow (reflux) valve is fitted, and the semi-auto drain dumps on pressure drop while the manual drain works on demand.
| Model | Airtac GAFC Air Service Unit GAFC300N15LNWK |
|---|---|
| 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 | 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. 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. |
|---|---|
| N | Bowl material: Nylon. 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. |
| K | Reverse-flow (reflux) valve attached. |
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 bank of precision pneumatic valves that require clean, regulated air at a stable lower pressure, with the 5 um element protecting sensitive internal orifices.
Supply a metered oil mist to a multi-station assembly line where tools and cylinders need consistent lubrication, with the 98 cc oil bowl reducing refill frequency.
Power a laboratory test rig that operates at lower pressures, where the 0.15-0.4 MPa range matches the duty and the semi-auto drain handles condensate from humid supply air.
Choose this GAFC300N15LNWK when your circuit needs clean, pressure-set air with a fine 5 um filter and a regulated ceiling of 0.4 MPa. The nylon bowl is a build choice, not a performance upgrade, so confirm it suits your environment. The semi-auto drain clears condensate each time pressure drops, while the manual drain gives you control. The PT thread matches standard local fittings, and the gauge connection is 1/8in if you add one later. The reverse-flow valve is fitted as an ordering difference. Spares are GAFR300-15 and GAL300-15, both orderable separately. 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 working pressure range is 0.15-0.4 MPa (20-58 psi), with a max pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C and must not freeze. The drain bowl holds 60 cc, the oil bowl 98 cc, and the unit weighs 1020 g. Recommended lubricant is ISO VG 32.
The N in the code after the port means no gauge is supplied, so you cannot read the set pressure without adding one. The gauge connection on the GAFC300 body is 1/8in, allowing a standard gauge to be fitted later if needed.
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