
The AirTAC Airtac GAFC Air Service Unit GAFC400N15ASK 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 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
This AirTAC GAFC400N15ASK is a two-piece F.R.L. combination: a filter-regulator in one body paired with a lubricator, mounted on a T-bracket with quick clamps. The 1/2in port and 1810 g mass place it in the mid-size class, suited for machine headers or multi-station lines where a single point of air preparation is needed. Air is cleaned and set to pressure first, then the lubricator adds a metered oil mist last, so oil never travels back through the regulator seat.
The nylon bowl holds 100 cc of condensate and the separate oil bowl holds 185 cc, which sets the service rhythm for the unit. It operates in the standard 0.15-0.9 MPa (20-130 psi) range with a 40 um element, and the circular gauge reads in MPa and psi. The automatic drain clears condensate without an operator, making it a practical choice for lines that run unattended between shifts.
| Model | Airtac GAFC Air Service Unit GAFC400N15ASK |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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. 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". |
| A | Drain: Automatic 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. |
| (blank) | Filtering grade 40 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 header on a CNC lathe or machining center, where the automatic drain handles condensate from wet shop air and the regulator holds pressure for coolant valves and actuators.
Supply a multi-station assembly conveyor where pallet positioning cylinders cycle frequently. The 185 cc oil bowl keeps lubricator refills spaced out across a full shift.
Prepare air for a case packer or strapping machine with a 1/2in main line, where the 100 cc drain bowl and automatic drain reduce maintenance visits on a line that runs continuously.
Choose the GAFC400N15ASK when your line needs 1/2in ports and the 1810 g body class. The nylon bowl is a build choice; the common specification of 1.0 MPa max and -5 to 70 C applies across all bowl materials, so confirm nylon suits your surroundings. The A code specifies an automatic drain, which clears condensate on its own. The K code adds a reverse-flow (reflux) valve, which the catalogue draws as a separate pneumatic symbol. The PT thread carries a gauge scale in MPa and psi, matching the circular gauge that is fitted. The 40 um element is the standard grade; step to the 5 um W option if you need finer filtration. Spare parts are orderable as GAFR400-15 and GAL400-15, so a worn element or bowl does not force a full replacement. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated range, so plan your inlet pressure accordingly if you need the full output.
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 GAFC400N15ASK is an F.R.L. combination with a 1/2in port, operating at 0.15-0.9 MPa (20-130 psi). Maximum pressure is 1.0 MPa (145 psi) and proof pressure is 1.5 MPa (215 psi). It works in -5 to 70 C temperatures and uses ISO VG 32 lubricant. The drain bowl holds 100 cc and the oil bowl holds 185 cc, with a total weight of 1810 g.
The K code means a reverse-flow (reflux) valve is fitted to the GAFC400N15ASK. The catalogue shows this as a separate pneumatic symbol in the circuit. It is an ordering difference to note when you select the unit; the valve is included as part of this configuration.
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