
The AirTAC Airtac GAFC Air Service Unit GAFC400N10LN 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 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
This AirTAC GAFC400N10LN is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator on a shared T-bracket. With a 3/8in port and a 1810 g mass, it sits in the mid-range of the GAFC family, sized for a machine header feeding several actuators. The lower-pressure version regulates from 0.15 to 0.4 MPa (20-58 psi), and the 40 um element handles standard shop air.
The nylon bowl holds 100 cc of condensate, while the separate oil bowl holds 185 cc, so the service interval is set by how wet the line is and how much oil the downstream tools consume. Because no gauge is fitted, the gauge connection on this body is 1/4in if you add one later. The filter and regulator share one body, which means one less inter-unit joint to seal compared with a three-piece train.
| Model | Airtac GAFC Air Service Unit GAFC400N10LN |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 3/8" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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. 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". |
| (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. |
| (blank) | No reverse-flow valve. |
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 precision pneumatic valves on a small assembly station, where the 0.15-0.4 MPa range gives fine pressure control for delicate actuation.
Supply a controlled oil mist to a multi-spindle drilling head, where the 185 cc oil bowl supports extended runs between refills.
Provide regulated, lubricated air to a laboratory test fixture that cycles a cylinder at low pressure, with the 100 cc drain bowl capturing condensate.
Choose the GAFC400N10LN when your line needs a 3/8in port and a regulated ceiling of 0.4 MPa, not the 0.9 MPa of the standard type. The nylon bowl is a build choice, but the catalogue gives no impact or chemical data, so confirm it suits your surroundings. The semi-auto drain dumps condensate each time pressure drops, with a manual drain for on-demand use. A 40 um element is fitted; the W option upgrades to 5 um for finer filtration. The PT thread carries a gauge scale in MPa/psi, but this model ships without a gauge. The two spares are GAFR400-10 and GAL400-10, both orderable separately. If the line must stay oil-free, leave the lubricator out and choose a plain GAFR instead. A 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 GAFC400N10LN operates at 0.15-0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It works in temperatures from -5 to 70 C and requires ISO VG 32 lubricant. 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 with this unit. The gauge connection on the GAFC400 body is 1/4in, so you can add a gauge there if you need to read the set pressure. The bowl material is nylon, which is a separate code position before the port.
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