
The AirTAC Airtac GAFC Air Service Unit GAFC300N15ALWK 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 F.R.L. combination pairs a filter-regulator with a lubricator on a shared T-bracket, so the air is cleaned, set to pressure, then oil-misted in sequence. The GAFC300N15ALWK uses a 1/2in port and a 5 um element, with a lower-pressure regulator range of 0.15-0.4 MPa (20-58 psi) for gentle duties.
The nylon bowl holds 60 cc of condensate while the oil bowl holds 98 cc, and the whole unit weighs 1020 g. An automatic drain clears the water separator without an operator, and the circular gauge reads in MPa/psi. The reverse-flow valve is fitted as an ordering option.
| Model | Airtac GAFC Air Service Unit GAFC300N15ALWK |
|---|---|
| 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 | 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. |
| 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. |
| 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 |
Set a delicate clamping pressure on a fixture that must not exceed 0.4 MPa, using the lower-pressure regulator for fine control.
Feed a small conveyor drive with filtered, regulated air and a metered oil mist to keep the actuator moving smoothly.
Protect a sensitive pneumatic gauge or sensor from particles down to 5 um while keeping the supply pressure within a safe low band.
Choose this GAFC300 when a 1/2in port and a 1020 g body suit your panel, and the lower-pressure L type caps the regulated output at 0.4 MPa - if a machine may ever need more than that, the standard S type is the safer pick. The nylon bowl is a build choice, not a performance upgrade, so confirm it suits your environment. The 5 um element traps finer particles than the standard 40 um, at the cost of more frequent service. The automatic drain clears condensate on its own, ideal for wet or unattended lines. The PT thread carries a gauge scaled in MPa/psi, and the K code adds the reverse-flow valve. Spares are orderable as GAFR300-15 and GAL300-15. Max supply of 1.0 MPa leaves about 0.6 MPa above the 0.4 MPa top of the regulated 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.
This F.R.L. combination operates from 0.15 to 0.4 MPa (20-58 psi) with a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It works 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. Use ISO VG 32 oil in the lubricator.
The L type code sets the regulator to a 0.15-0.4 MPa band instead of the standard 0.15-0.9 MPa. This suits applications that need gentle, precise pressure control and never require more than 0.4 MPa. The 5 um element and automatic drain are separate options that come with this specific build.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.