The AirTAC Airtac GAFC Air Service Unit GAFC300N15AS 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 GAFC300N15AS is a two-piece F.R.L. combination: the filter and pressure regulator share one body, and a lubricator is mounted downstream on a T-bracket. Air is cleaned and set to pressure first, then a metered oil mist is added last, so oil never travels back through the regulator seat. With a 1/2in port and 1020 g mass, it suits medium-size machine headers or multi-actuator stations where a proper panel or frame mount is expected.
The nylon bowl holds 60 cc of condensate and the oil bowl 98 cc, which sets the service rhythm for this unit. The standard pressure range is 0.15-0.9 MPa (20-130 psi) with a 40 um element, and the circular gauge reads in MPa and psi for the PT thread. The automatic drain clears collected water without an operator, which is useful on lines that run unattended.
| Model | Airtac GAFC Air Service Unit GAFC300N15AS |
|---|---|
| Series | GAFC300 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 | Nylon |
| Drain type | Automatic 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). |
| 15 | Port size 1/2". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic 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. |
| (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 bank of solenoid valves on a CNC lathe's coolant system. The 1/2in port and 0.15-0.9 MPa range cover typical valve actuation, while the automatic drain keeps condensate from reaching precision solenoids.
Supply a multi-station assembly bench where operators use pneumatic screwdrivers and clamps. The 98 cc oil bowl keeps lubricant available for several tools between refills, and the 60 cc condensate bowl handles moisture from a busy line.
Run a carton-erecting machine's cylinders and grippers. The 1020 g unit mounts on the machine frame, and the nylon bowl offers a visible level check. The automatic drain suits the long, unattended shifts common on packaging lines.
Choose the GAFC300 body when your line needs 1/2in ports and the 3500 L/min flow envelope plotted at 0.7 MPa inlet is enough for the duty. 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 it suits your surroundings. The automatic drain removes condensate by itself, while the standard type regulates from 0.15 to 0.9 MPa (20-130 psi). The fitted gauge reads MPa and psi for the PT thread, and the 40 um element handles general shop air. If the line must stay oil-free, omit the lubricator and use a plain GAFR300-15 filter-regulator instead; otherwise the two service parts are GAFR300-15 and GAL300-15. Max supply is 1.0 MPa, which leaves about 0.1 MPa above the 0.9 MPa top of the regulated range, so plan inlet 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 GAFR300-15 filter-regulator on that branch instead of the full combination.
The GAFC300N15AS is a standard-type F.R.L. combination with a 1/2in port. Working pressure is 0.15-0.9 MPa (20-130 psi), max pressure is 1.0 MPa (145 psi), and proof pressure is 1.5 MPa (215 psi). Temperature range is -5 to 70 C. The drain bowl holds 60 cc, the oil bowl holds 98 cc, and the unit weighs 1020 g. Use ISO VG 32 or equivalent oil in the lubricator.
The A in the code specifies an automatic drain, which discharges condensate from the 60 cc bowl without an operator. This is different from the blank drain option, which includes a semi-auto drain that dumps on pressure drop plus a manual drain. The automatic version is suited for lines that run continuously or in locations where regular manual draining is not practical.
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