
The AirTAC Airtac GAFC Air Service Unit GAFC400N15SWK 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 AirTAC F.R.L. combination pairs a filter-regulator with a lubricator on a single T-bracket, so the air is cleaned and set to pressure in the first body, then receives a metered oil mist last. The GAFC400N15SWK uses a 1/2in port and a 5 um element, with a working range of 0.15-0.9 MPa (20-130 psi).
The nylon bowl holds 100 cc of condensate and the oil bowl 185 cc, and the complete unit weighs 1810 g. A circular gauge is fitted with an MPa/psi scale for the PT thread, and the reverse-flow valve is included. The two-piece build means one less inter-unit joint to seal compared to a three-body train.
| Model | Airtac GAFC Air Service Unit GAFC400N15SWK |
|---|---|
| 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 | Nylon |
| 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. |
|---|---|
| N | Bowl material: Nylon. 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 |
The 5 um element and regulated output suit a precision pneumatic valve on a CNC machine tool, where finer filtration protects sensitive spools and orifices.
A 1/2in port and 1810 g mass fit a machine header feeding several actuators on a stamping press, with the 185 cc oil bowl supporting a full shift.
On a multi-station assembly line, the 100 cc condensate bowl and 5 um element reduce maintenance stops, while the lubricator meters oil to downstream tools.
Choose this GAFC400 when a 1/2in port and a 1810 g mass suit a machine header or a multi-station line; the catalogue flow curve is plotted to 6000 L/min at 0.7 MPa inlet, useful for relative sizing against the GAFC300's 3500 L/min envelope. The nylon bowl is a build choice, but the shared specification of 1.0 MPa max and -5 to 70 C applies, so confirm the material for your surroundings. The 5 um element traps finer particles for precision valves, at the cost of more frequent service. Both the semi-auto drain (dumps on pressure drop) and the manual drain are fitted. The circular gauge reads MPa/psi, and the reverse-flow valve is fitted as an ordering difference. Spares are the GAFR400-15 filter & regulator and the GAL400-15 lubricator, both orderable separately. With a 1.0 MPa max supply, there is 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 working 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). Temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32. The drain bowl holds 100 cc, the oil bowl 185 cc, and the unit weighs 1810 g.
The K code indicates a reverse-flow (reflux) valve is fitted. The catalogue draws it as a separate pneumatic symbol, with details on its own page. It is an ordering difference to note, not a function we specify.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.