
The AirTAC Airtac GAFC Air Service Unit GAFC400N10ALNWK 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 3/8" ports, a 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
This GAFC400 F.R.L. combination pairs a filter-regulator body with a lubricator on a shared T-bracket, so the air is cleaned, set to pressure, and then oil-misted in one compact two-piece train. The 3/8in port and 1810 g weight place it in the mid-size class, suited to feeding a small machine header or a few actuators from one point.
The lower-pressure regulator is set for 0.15-0.4 MPa (20-58 psi), and the 5 um element traps finer particles than the standard 40 um grade. The nylon bowl holds 100 cc of condensate, the oil bowl 185 cc, and the automatic drain clears water without an operator. With no gauge fitted, the 1/4in gauge connection is left for a later add-on if needed.
| Model | Airtac GAFC Air Service Unit GAFC400N10ALNWK |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 3/8" (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). |
| 10 | Port size 3/8". 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: GAFR400-10 filter & regulator, GAL400-10 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 · 3/8" · 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 small solenoid valves on a packaging machine with 5 um filtered air, regulated to a stable 0.3 MPa for consistent actuator response.
Mount on a compact assembly station header to lubricate a few pneumatic cylinders, with the automatic drain handling condensate from a humid shop line.
Supply a lab instrument or test rig that needs fine filtration and a low, precise pressure setting, with the oil mist added downstream for any pneumatic components.
Choose this GAFC400N10ALNWK when your line needs fine filtration at a modest pressure ceiling. The 5 um element suits precision valves or instrument air, while the automatic drain is a real advantage on wet or unattended lines. The nylon bowl is a build choice; the catalogue lists the same 1.0 MPa max and -5 to 70 C range for all bowl materials, so confirm it fits your surroundings. The reverse-flow (reflux) valve is fitted, and the PT thread carries the default MPa/psi gauge scale if you add a gauge later.
The two units are orderable separately as the GAFR400-10 filter & regulator and the GAL400-10 lubricator, so a clogged element or damaged bowl does not force a full replacement. For lines that must stay oil-free, omit the lubricator and choose a plain GAFR filter-regulator instead. 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 GAFR400-10 filter-regulator on that branch instead of the full combination.
The pressure range is 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 185 cc, and the unit weighs 1810 g.
The N after the port code means no gauge is supplied, so you cannot read the set pressure without adding one. The gauge connection on the GAFC400 body is 1/4in, which is where a gauge would be fitted if you need one later.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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