Airtac GAFC Air Service Unit GAFC300N15ALK
The AirTAC Airtac GAFC Air Service Unit GAFC300N15ALK 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).
- TypeF.R.L. combination
- Port size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade40 µm
- Bowl materialNylon
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight1020 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFC Air Service Unit GAFC300N15ALK
This AirTAC GAFC300N15ALK is an F.R.L. combination built as two pieces on one T-shape bracket: a filter-regulator body followed by a lubricator. The 1/2in port size and 1020 g mass place it in the mid-size class, suitable for feeding several actuators or a small machine header. It operates in the lower pressure band of 0.15-0.4 MPa (20-58 psi), with a 40 um element and a circular gauge reading MPa/psi.
The nylon bowl holds 60 cc of condensate while the oil bowl holds 98 cc, giving a reasonable service interval for a unit this size. The automatic drain clears collected water without operator attention, and the reverse-flow valve is fitted as a separate pneumatic symbol. With a 1.0 MPa (145 psi) maximum supply, there is about 0.6 MPa of headroom above the 0.4 MPa top of the regulated range, so the unit suits applications where moderate, stable pressure is the goal.
Airtac GAFC Air Service Unit GAFC300N15ALK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC300N15ALK |
|---|---|
| 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 | 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.
Model Code: Airtac GAFC Air Service Unit GAFC300N15ALK
| 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. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAFR300-15 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.
Size Class & Flow Envelope
- GAFC2001/8"-1/4" · 1750 L/min
- GAFC3001/4"-1/2" · 3500 L/min
- GAFC4003/8"-1/2" · 6000 L/min
- GAFC5003/4" · 7000 L/min
- GAFC6003/4"-1" · 12000 L/min
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 |
Where the Airtac GAFC Air Service Unit GAFC300N15ALK Is Used
Precision Assembly Stations
Feed a bench-mounted press or a small parts feeder that needs clean, regulated air at a steady 0.3 MPa without the risk of over-pressurizing delicate tooling.
Paint Spray Booths
Supply atomizing air to spray guns in a finishing booth, where the lower 0.4 MPa ceiling prevents excessive overspray and the automatic drain keeps moisture out of the line.
Test Rigs and Lab Benches
Run pneumatic test fixtures or calibration equipment that operate within a narrow pressure window, benefiting from the 0.15-0.4 MPa range and the visible gauge for setpoint verification.
Is the Airtac GAFC Air Service Unit GAFC300N15ALK the Right Air-Prep Unit?
Choose this GAFC300N15ALK when your line needs 1/2in ports and a regulated output capped at 0.4 MPa (20-58 psi). The nylon bowl is a build choice, not a performance upgrade; the shared specification of 1.0 MPa max and -5 to 70 C applies regardless, so confirm the material suits your environment. The automatic drain is the right call for unattended operation or wet supply lines, while the 40 um element handles general workshop air. The PT thread carries a gauge scaled in MPa/psi, and the K suffix means the reverse-flow valve is already attached. If your machine may ever require more than 0.4 MPa, this lower-pressure type is the wrong part; step to a standard S type instead. For oil-free downstream air, omit the lubricator and choose a plain GAFR300-15 filter-regulator. Spare units are orderable as GAFR300-15 and GAL300-15, both matching this body-port. The proof pressure of 1.5 MPa (215 psi) against the 1.0 MPa maximum is a 1.5x burst-test margin, not permission to run above the rated limit.
Quick checklist
- ✓ Body size for your peak flow (1/2" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Thread & gauge scale (PT / G / NPT)
Installation & Maintenance Notes
- check Install with the airflow arrow: filter-regulator first, lubricator last.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Fill the oil bowl with ISO VG 32 or equivalent only.
- check Drain condensate before the 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 1020 g unit on its bracket, not on the tubing.
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.
Airtac GAFC Air Service Unit GAFC300N15ALK FAQ
This unit operates at 0.15-0.4 MPa (20-58 psi) with a maximum supply pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32. The drain bowl holds 60 cc, the oil bowl holds 98 cc, and the total weight is 1020 g. The filter element is 40 um, and the port size is 1/2in.
The L in the code specifies the lower-pressure type, which regulates from 0.15 to 0.4 MPa instead of the standard 0.15-0.9 MPa. This is useful for applications that must not exceed 0.4 MPa, such as paint spraying or delicate instrumentation. The trade-off is that you cannot dial in higher pressures later; if the machine may need more, choose the standard S type instead.
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