
The AirTAC Airtac GAFC Air Service Unit GAFC400C15LNK 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 is a two-piece F.R.L. combination from AirTAC: a filter-regulator body paired with a lubricator, mounted together on a T-bracket with quick clamps. The 1/2in port and 1810 g weight place it in the mid-size GAFC400 class, suited to machine headers or multi-station lines. It regulates in the lower pressure band of 0.15-0.4 MPa (20-58 psi) and filters to 40 um.
The metal bowl is specified by the C code; the catalogue gives no material-specific temperature or impact data, so confirm it suits your environment. No gauge is supplied with this model, but the 1/4in gauge connection is ready for one. The reverse-flow (reflux) valve is fitted, and the two units are separately orderable as GAFR400-15 and GAL400-15.
| Model | Airtac GAFC Air Service Unit GAFC400C15LNK |
|---|---|
| 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 | 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 | 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. No gauge is supplied with this model — the gauge connection on a GAFC400 is 1/4" if you add one.
| 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". |
| (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). |
| N | No pressure gauge; 1/4" gauge connection. |
| (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.
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 |
Set a lathe's air chuck to a stable 0.3 MPa (43 psi) with the lower-pressure regulator, while the 40 um element keeps fine particles off the chuck jaws.
Feed a four-station assembly cell at 0.35 MPa (51 psi) through the 1/2in ports, with the 185 cc oil bowl keeping slide valves lubricated across a full shift.
Mount on a machine header feeding three actuators, using the 100 cc condensate bowl to collect moisture from a humid compressor line before it reaches the valves.
Choose the GAFC400 body when you need 1/2in ports and a 100 cc condensate bowl with a 185 cc oil bowl; it steps down from the GAFC500's 108 cc bowl if space is tighter, or up from the GAFC300's 60 cc bowl for longer service intervals. The L type tops out at 0.4 MPa, so if your machine may ever need more than that, select the standard S type instead. The semi-auto drain dumps on pressure drop and the manual drain works on demand, while the metal bowl is a build choice only. The 40 um element is the standard grade, and the PT thread carries a gauge scale in MPa/psi if you add a gauge later. For oil-free lines, omit the lubricator and choose a plain GAFR filter-regulator instead. The 1.0 MPa max supply 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 GAFR400-15 filter-regulator on that branch instead of the full combination.
This lower-pressure unit works from 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 operates from -5 to 70 C and uses ISO VG 32 oil. The drain bowl holds 100 cc, the oil bowl holds 185 cc, and the unit weighs 1810 g.
The N after the port code means no gauge is supplied. The GAFC400 body has a 1/4in gauge connection, so you can add a circular gauge later if you need to read the set pressure. The PT thread carries a dual MPa-psi scale on any gauge you fit.
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