Airtac GAFC Air Service Unit GAFC400C15ALW
The AirTAC Airtac GAFC Air Service Unit GAFC400C15ALW 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).
- TypeF.R.L. combination
- Port size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight1810 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 GAFC400C15ALW
This GAFC400C15ALW is a two-piece F.R.L. combination: a filter and regulator share one body, and a lubricator is mounted beside them on a T-bracket with quick clamps. The 1/2in port and 1810 g mass place it in the mid-size class, needing a proper panel or frame mount rather than support from the tubing. Air is filtered and set to pressure in the first body, then the lubricator adds a metered oil mist last, so oil never passes back through the regulator seat.
The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), and the 5 um element traps finer particles than the standard 40 um grade for precision valves or instrument air. The metal bowl holds 100 cc of condensate and the oil bowl 185 cc, so the service interval is driven by how often someone drains the bowl. A circular gauge is fitted, graduated in MPa with a psi ring, matching the PT thread's scale.
Airtac GAFC Air Service Unit GAFC400C15ALW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400C15ALW |
|---|---|
| Series | GAFC400 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 | Metal |
| 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 | 100 cc |
| Capacity of oil bowl | 185 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 1810 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 GAFC400C15ALW
| GAFC400 | GA400 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 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. |
| (blank) | No reverse-flow valve. |
Constituent units, orderable separately as spares: GAFR400-15 filter & regulator, GAL400-15 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 | GAFC400 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAFC300 |
| One size up | GAFC500 (curve to 7000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Where the Airtac GAFC Air Service Unit GAFC400C15ALW Is Used
Precision valve control
Feed a bank of precision pneumatic valves on a packaging line where the 5 um element protects fine internal clearances and the lower pressure range prevents over-pressurizing sensitive actuators.
Machine tool lubrication
Supply a metered oil mist to slideways on a CNC lathe, where the 185 cc oil bowl supports extended runs between refills and the automatic drain keeps the condensate bowl from overflowing during night shifts.
Instrument air bench
Set up a test bench for pneumatic instruments needing 0.15-0.4 MPa regulated air, with the metal bowl resisting accidental knocks and the 5 um element keeping calibration orifices clean.
Is the Airtac GAFC Air Service Unit GAFC400C15ALW the Right Air-Prep Unit?
Choose the GAFC400 body when you need 1/2in ports and a 6000 L/min flow envelope at 0.7 MPa inlet, stepping down from the GAFC500's 7000 L/min curve if your line is smaller. The metal bowl is a build choice for the surroundings; confirm it suits your environment, since the catalogue gives no material-specific data. The automatic drain clears condensate without an operator, which suits unattended or wet lines, and the 5 um element trades finer filtration for more frequent element service. The L type tops out at 0.4 MPa, so if the machine may ever need more pressure, this is the wrong part. The PT thread carries a gauge scale in MPa/psi, and a reverse-flow valve can be added with the K option. Spares are orderable as GAFR400-15 and GAL400-15. The 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range, so plan the inlet pressure carefully.
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 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 1810 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 GAFR400-15 filter-regulator on that branch instead of the full combination.
Airtac GAFC Air Service Unit GAFC400C15ALW FAQ
This F.R.L. combination operates at 0.15-0.4 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 must not freeze. It has a 100 cc drain bowl and a 185 cc oil bowl, weighs 1810 g, and the recommended lubricant is ISO VG 32.
The L type regulates from 0.15 to 0.4 MPa instead of the standard 0.15-0.9 MPa, which suits applications needing low, precise pressure without the risk of over-pressurization. If your machine may ever need more than 0.4 MPa, choose the S type instead. The 5 um element and automatic drain are separate options that work with either pressure type.
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