
The AirTAC Airtac GAFC Air Service Unit GAFC300N08ALK 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 1/4" ports, a 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
This AirTAC unit pairs a filter-regulator with a lubricator on a single T-bracket, so the air is cleaned and set to pressure before a metered oil mist is added downstream. The GAFC300N08ALK uses a 1/4in port, regulates from 0.15 to 0.4 MPa (20-58 psi), and filters down to 40 um.
The nylon bowl holds 60 cc of condensate while the separate oil bowl holds 98 cc, and the whole assembly weighs 1020 g. A circular gauge is fitted with an MPa/psi scale, and the automatic drain clears water without an operator.
| Model | Airtac GAFC Air Service Unit GAFC300N08ALK |
|---|---|
| Series | GAFC300 F.R.L. combination |
| Port size | 1/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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). |
| 08 | Port size 1/4". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 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: GAFR300-08 filter & regulator, GAL300-08 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 · 1/4" · 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 small pneumatic vise or work-holding fixture on a benchtop assembly station, where the lower pressure range prevents over-clamping delicate parts.
Provide filtered and regulated air to a lab test rig or a single air-operated valve, with the automatic drain keeping the line clear during long experiments.
Supply a small air drill or a blow gun in a maintenance bay, where the 1/4in port and lower pressure range suit light intermittent use.
Choose this lower-pressure model when your circuit never needs more than 0.4 MPa, such as light assembly or small actuator work. The nylon bowl is a build choice, but the shared -5 to 70 C and 1.0 MPa limits apply to all bowl materials, so confirm it suits your environment. The automatic drain suits unattended lines, and the 40 um element handles standard shop air. A reverse-flow (reflux) valve is fitted, and the PT thread comes with an MPa/psi gauge. The filter-regulator and lubricator are orderable separately as GAFR300-08 and GAL300-08. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above the 0.4 MPa top of the regulated band.
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 GAFR300-08 filter-regulator on that branch instead of the full combination.
The GAFC300N08ALK is an F.R.L. combination with a 1/4in port. It regulates from 0.15 to 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). The temperature range is -5 to 70 C, and it uses ISO VG 32 oil. The drain bowl holds 60 cc, the oil bowl holds 98 cc, and the unit weighs 1020 g.
The K indicates a reverse-flow (reflux) valve is fitted to this unit. It is shown as a separate pneumatic symbol in the catalogue, and it is included as an ordering difference. The filter-regulator and lubricator are still the two main serviceable parts, orderable as GAFR300-08 and GAL300-08.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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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.