Airtac GAFC Air Service Unit GAFC400C15ALK
The AirTAC Airtac GAFC Air Service Unit GAFC400C15ALK 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 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 GAFC400C15ALK
This GAFC400C15ALK is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator on a shared T-bracket. Air is cleaned and set to pressure in the first unit, then the lubricator adds a controlled oil mist downstream, so oil never travels back through the regulator seat. With a 1/2in port and a 1810 g mass, it suits medium-size machine headers rather than small jigs.
The lower-pressure (L) type regulates from 0.15 to 0.4 MPa (20-58 psi), with a 1.0 MPa (145 psi) maximum supply and 1.5 MPa (215 psi) proof pressure. The metal bowl holds 100 cc of condensate and the oil bowl holds 185 cc, so service intervals are longer than on smaller bodies. A circular gauge with an MPa/psi scale is fitted, and the 40 um element handles standard shop air.
Airtac GAFC Air Service Unit GAFC400C15ALK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400C15ALK |
|---|---|
| Series | GAFC400 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 | 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 GAFC400C15ALK
| 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. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
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 GAFC400C15ALK Is Used
Precision Machining Center
Feed a CNC machining center's tool-changing mechanism with regulated air at 0.3 MPa, where the lower-pressure range prevents over-stroking pneumatic clamps.
Assembly Line Pneumatics
Supply a multi-station assembly line with a consistent 0.35 MPa for push cylinders and vacuum generators, relying on the automatic drain for continuous operation.
Packaging Equipment
Run a carton-sealing machine's film tensioning cylinders at 0.25 MPa, using the 185 cc oil bowl to keep the lubricator filled for a full shift.
Is the Airtac GAFC Air Service Unit GAFC400C15ALK the Right Air-Prep Unit?
Choose the GAFC400 body when a 1/2in port and a 6000 L/min flow envelope (plotted at 0.7 MPa inlet) are needed for a multi-station line. The metal bowl is specified by the C code, and the automatic drain clears condensate without an operator, which suits unattended operation. The L type caps at 0.4 MPa (20-58 psi), so if the machine may ever need more pressure, select the standard S type instead. The K code adds a reverse-flow (reflux) valve, and the PT thread carries an MPa/psi gauge scale. For spares, order GAFR400-15 and GAL400-15 separately. 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range.
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 GAFC400C15ALK FAQ
The GAFC400C15ALK 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). It has a 40 um element, a 100 cc drain bowl, a 185 cc oil bowl, and weighs 1810 g. The temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32.
The K code indicates a reverse-flow (reflux) valve is fitted. This is an ordering difference shown as a separate pneumatic symbol in the catalogue. The unit also comes with a metal bowl and an automatic drain, which clears condensate without manual intervention.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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