The AirTAC Airtac GAFC Air Service Unit GAFC300N15L 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 - 0.4 MPa (20 - 58 psi).
This AirTAC GAFC300N15L is an F.R.L. combination built as two units on one T-shape bracket: a filter-regulator body that cleans the air and sets its pressure, followed by a lubricator that adds a controlled oil mist. The 1/2in port and 1020 g mass place it in the mid-size class, suited for machine tools or assembly stations that need a steady, oiled supply.
The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), with a 40 um element catching solids and water. The nylon bowl is the build choice here, while the 60 cc condensate bowl and 98 cc oil bowl set the service interval. A circular gauge is fitted, reading MPa/psi for the PT thread, and the semi-auto plus manual drain pair handles condensate on pressure drops or on demand.
| Model | Airtac GAFC Air Service Unit GAFC300N15L |
|---|---|
| Series | GAFC300 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 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. 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". |
| (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). |
| (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 |
Feeds a 1/2in line to a CNC tool changer, where the lower pressure band protects sensitive clamping cylinders from over-pressurization.
Supplies a multi-fixture assembly station with filtered, regulated air and a fine oil mist for pneumatic screwdrivers and slides.
Powers a case packer's pneumatic actuators at a controlled 0.4 MPa ceiling, keeping the film-sealing section free of pressure spikes.
Choose the GAFC300N15L when your circuit runs below 0.4 MPa and you want the 1/2in port size. The nylon bowl is specified by the N before the port code, while the L after it sets the lower pressure range; if the machine may ever need more than 0.4 MPa, step to the standard S type instead. The 40 um element suits general shop air, and the PT thread brings a gauge scale in MPa/psi that operators read directly. The semi-auto drain dumps condensate each time pressure drops, with a manual backup for scheduled service. For spares, order the GAFR300-15 filter-regulator and the GAL300-15 lubricator separately. Since the lubricator adds oil mist, choose a plain GAFR if the line must stay oil-free. Max supply of 1.0 MPa leaves about 0.6 MPa above the 0.4 MPa top of the range.
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 GAFC300N15L operates 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). It works in -5 to 70 C temperatures, uses ISO VG 32 oil, has a 60 cc condensate bowl and a 98 cc oil bowl, and weighs 1020 g.
The N before the port code specifies a nylon bowl for the condensate and oil reservoirs. The catalogue lists the same 1.0 MPa max and -5 to 70 C range for all bowl materials, so nylon is a build choice rather than a higher-rated option. Confirm it suits your environment, especially with aggressive chemicals or solvents.
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