
The AirTAC Airtac GAFC Air Service Unit GAFC400C15SWK 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 - 0.9 MPa (20 - 130 psi).
This GAFC400C15SWK is an F.R.L. combination where the filter and regulator share one body, and a lubricator is joined on a T bracket. With a 1/2in port and a 1810 g mass, it sits in the mid-size class, needing a proper panel or frame mount rather than support from the tubing. The 5 um element traps finer particles than the standard 40 um grade, making it a fit for circuits with precision valves or instrument air.
Air enters the first body, gets filtered and set to pressure, then the lubricator adds a controlled oil mist last. The metal bowl is specified by the C code, and the shared specification of 1.0 MPa max and -5 to 70 C applies. The circular gauge is fitted, reading in MPa and psi for the PT thread. The reverse-flow valve is also fitted, as indicated by the K code.
| Model | Airtac GAFC Air Service Unit GAFC400C15SWK |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
| 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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: 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 |
Feed a bank of precision pneumatic valves on a packaging line where the 5 um element filters fine particulates that could clog small orifices.
Supply a metered oil mist to a multi-spindle drilling head, where the 185 cc oil bowl supports longer runs between refills.
Prepare air for a laboratory test bench with a 1/2in manifold, using the 100 cc condensate bowl to handle moisture from a wet compressor line.
Choose the GAFC400C15SWK when you need 1/2in ports and the 6000 L/min plotted flow envelope at 0.7 MPa inlet. The metal bowl is a build choice; confirm it suits your surroundings, as the catalogue gives no material-specific data. The drain is the semi-auto and manual pair, so condensate dumps on pressure drop or on demand. The 5 um element means more frequent service than a 40 um grade, but it protects sensitive components. The gauge reads MPa and psi, matching the PT thread. Spares are the GAFR400-15 filter-regulator and the GAL400-15 lubricator, both orderable separately. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan the supply pressure accordingly.
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.
The pressure range is 0.15-0.9 MPa (20-130 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 lubricant. The drain bowl holds 100 cc and the oil bowl 185 cc, with a total weight of 1810 g.
The K code indicates a reverse-flow (reflux) valve is fitted. It is shown as a separate pneumatic symbol in the catalogue. The valve is part of the assembly as ordered, and its specific function is detailed on its own catalogue page.
Genuine AirTAC parts produced by AirTAC factory.
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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.