Airtac GAFC Air Service Unit GAFC400N15ALN
The AirTAC Airtac GAFC Air Service Unit GAFC400N15ALN 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 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade40 µm
- Bowl materialNylon
- Drainautomatic
- Pressure gaugeNot fitted
- Weight1810 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFC Air Service Unit GAFC400N15ALN
This AirTAC GAFC400N15ALN is an F.R.L. combination built as two joined units: a filter-regulator body paired with a lubricator on a shared T bracket. Air enters the 1/2in port, gets filtered and set to pressure in the first body, then receives a metered oil mist from the lubricator last. The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), with a 40 um element handling solids and moisture separation.
The nylon bowl holds 100 cc of condensate while the oil bowl holds 185 cc, and the complete assembly weighs 1810 g. No gauge is supplied with this model, so the set pressure cannot be read without adding one to the 1/4in gauge connection. The automatic drain clears collected water without operator attention, making this a fit-and-forget choice for a 1/2in line.
Airtac GAFC Air Service Unit GAFC400N15ALN Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400N15ALN |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 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.
Model Code: Airtac GAFC Air Service Unit GAFC400N15ALN
| 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. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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.
Size Class & Flow Envelope
- GAFC2001/8"-1/4" · 1750 L/min
- GAFC3001/4"-1/2" · 3500 L/min
- GAFC4003/8"-1/2" · 6000 L/min
- GAFC5003/4" · 7000 L/min
- GAFC6003/4"-1" · 12000 L/min
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 |
Where the Airtac GAFC Air Service Unit GAFC400N15ALN Is Used
Precision Assembly Stations
Feed a 1/2in line to a precision assembly station where a controlled 0.15-0.4 MPa range protects delicate grippers and alignment fixtures from over-pressure.
Unattended Machine Tools
Mount on a CNC machine's auxiliary air circuit where the automatic drain clears condensate without an operator, keeping the lubricator topped up for spindle or tool-changer cylinders.
Low-Pressure Test Rigs
Use in a leak-test or calibration rig that operates below 0.4 MPa, where the lower-pressure regulator provides finer adjustment within the 20-58 psi band.
Is the Airtac GAFC Air Service Unit GAFC400N15ALN the Right Air-Prep Unit?
Choose this GAFC400N15ALN when you need a 1/2in F.R.L. combination with a regulated ceiling of 0.4 MPa. The lower-pressure L type suits machines that never exceed this band; if your process may need more than 0.4 MPa, select the standard S type instead. The nylon bowl is a build choice, and the shared specification of 1.0 MPa max and -5 to 70 C applies regardless of material, so confirm it suits your environment. The automatic drain removes condensate without manual intervention, ideal for lines that run unattended. The 40 um element is the standard grade, while a 5 um W option traps finer particles for precision equipment. PT threads come with a gauge scale in MPa/psi, though this model ships without a gauge. The two units are separately orderable as GAFR400-15 and GAL400-15, so a damaged bowl or clogged element does not require replacing the whole assembly. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above the 0.4 MPa top of the regulated range, so plan your inlet pressure accordingly.
Quick checklist
- ✓ Body size for your peak flow (1/2" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Thread & gauge scale (PT / G / NPT)
Installation & Maintenance Notes
- check Install with the airflow arrow: filter-regulator first, lubricator last.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Fill the oil bowl with ISO VG 32 or equivalent only.
- check Drain condensate before the 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 1810 g unit on its bracket, not on the tubing.
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.
Airtac GAFC Air Service Unit GAFC400N15ALN FAQ
This F.R.L. combination operates from 0.15 to 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 works in temperatures from -5 to 70 C and uses ISO VG 32 lubricant. The drain bowl holds 100 cc, the oil bowl holds 185 cc, and the complete unit weighs 1810 g with a 1/2in port.
The N after the port code means no gauge is supplied with this unit. If you need to read the set pressure, you can add a gauge to the 1/4in connection on the GAFC400 body. The PT thread version uses a gauge scale in MPa/psi, so match the gauge to that scale when adding one.
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