
The AirTAC Airtac GAFC Air Service Unit GAFC400N15ALNWK 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).
This AirTAC GAFC400N15ALNWK is an F.R.L. combination that pairs a filter-regulator with a lubricator on a single T-shape bracket, reducing the piece count to two where a conventional train would need three. The 1/2in port and 1810 g mass place it in the mid-range size class, a unit that needs a proper panel or frame mount rather than support from the tubing.
The lower-pressure regulator is set for 0.15-0.4 MPa (20-58 psi), with the 5 um element trapping fine particles for sensitive equipment. The nylon bowl holds 100 cc of condensate while the oil bowl holds 185 cc, and the automatic drain clears water without an operator. Since no gauge is fitted, the gauge connection is 1/4in if you add one later.
| Model | Airtac GAFC Air Service Unit GAFC400N15ALNWK |
|---|---|
| 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 | Nylon |
| 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. 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. |
|---|---|
| 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". |
| 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). |
| N | No pressure gauge; 1/4" gauge connection. |
| 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 1/2in line to a CNC machining center's tool changer, where the 5 um element protects precision valves and the lower pressure range suits sensitive actuators.
Supply a multi-fixture assembly station with regulated air at 0.15-0.4 MPa, where the automatic drain keeps the line clear during long production runs.
Use on a pneumatic test bench with delicate instrumentation, where the 5 um filtration and lower pressure ceiling prevent over-pressurizing components.
Choose this GAFC400N15ALNWK when your line needs 1/2in ports and a regulated output capped at 0.4 MPa (20-58 psi). The nylon bowl is a build choice, but confirm it suits your environment since the catalogue gives no material-specific ratings. The automatic drain suits unattended operation, while the 5 um element catches finer particles than the standard 40 um grade, though it will need more frequent service. The PT thread and its MPa/psi gauge scale match standard local fittings, and the reverse-flow valve is fitted as an ordering difference. Spares are orderable separately as the GAFR400-15 filter-regulator and the GAL400-15 lubricator. With a 1.0 MPa max supply, you have about 0.6 MPa above the 0.4 MPa top of the regulated 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 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 uses ISO VG 32 lubricant. It has a 100 cc drain bowl and a 185 cc oil bowl, and weighs 1810 g.
The N after the port code means no gauge is supplied with this unit. The gauge connection is 1/4in if you need to add one later. The N before the port code indicates the bowl is made of nylon, which is a material choice you should confirm suits your operating environment.
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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.