Airtac GAFC Air Service Unit GAFC400N15SN
The AirTAC Airtac GAFC Air Service Unit GAFC400N15SN 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).
- TypeF.R.L. combination
- Port size1/2"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- 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 GAFC400N15SN
The GAFC400N15SN is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator on a shared T-bracket. Air is cleaned and set to pressure inside the first body, then the lubricator adds a controlled oil mist downstream, so oil never travels back through the regulator seat. With a 1/2" port and 1810 g mass, this unit suits mid-size machine headers where a proper panel mount is expected rather than tubing support.
This model carries a nylon bowl, the standard 0.15-0.9 MPa (20-130 psi) pressure range, and a 40 um element. The 100 cc condensate bowl and 185 cc oil bowl define the service interval, and the semi-auto drain dumps on pressure drop while the manual drain offers on-demand control. No gauge is supplied, so the 1/4" gauge connection must be used if a reading is required.
Airtac GAFC Air Service Unit GAFC400N15SN Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400N15SN |
|---|---|
| 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 | 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.
Model Code: Airtac GAFC Air Service Unit GAFC400N15SN
| 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". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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 GAFC400N15SN Is Used
Machine Tool Lubrication
Feed a CNC lathe's tool changer and door actuators with filtered, regulated air and a metered oil mist for slideways, keeping the 1/2" line pressure stable at 0.6 MPa.
Assembly Conveyor Controls
Supply a multi-zone conveyor's pneumatic stops and diverters, where the 100 cc condensate bowl handles moisture from a long header and the semi-auto drain clears during shift changes.
Packaging Line Air Prep
Protect a carton erector's cylinders and valves with 40 um filtration and regulated pressure, with the 185 cc oil bowl sustaining lubrication across a full production run.
Is the Airtac GAFC Air Service Unit GAFC400N15SN the Right Air-Prep Unit?
Choose the GAFC400N15SN when a 1/2" port and 1810 g body fit your flow needs; the catalogue flow curve plots to 6000 L/min at 0.7 MPa inlet, roughly 70% above the GAFC300's 3500 L/min envelope. The nylon bowl is a build choice, but the shared -5 to 70 C and 1.0 MPa (145 psi) maximum apply to all materials, so confirm nylon suits your environment. The semi-auto drain clears on each pressure drop with a manual backup, while the A code swaps to automatic operation. The 40 um element is standard; the W code upgrades to 5 um for finer filtration at the cost of more frequent service. The PT thread carries a gauge scale in MPa and psi, and the K option adds a reverse-flow valve. Spares are orderable as GAFR400-15 and GAL400-15. With a 1.0 MPa max supply, only about 0.1 MPa of headroom remains above the 0.9 MPa top of the regulated range, so plan the 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 GAFC400N15SN FAQ
The GAFC400N15SN operates at 0.15-0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It handles temperatures from -5 to 70 C and requires ISO VG 32 lubricant. The drain bowl holds 100 cc, the oil bowl 185 cc, and the unit weighs 1810 g.
The N before the port code specifies a nylon bowl, a material choice that shares the same pressure and temperature ratings as PC or metal options. The N after the port means no gauge is fitted, so the 1/4" gauge connection is left open unless you add one. The semi-auto drain provides automatic condensate release on pressure drops, with a manual drain as backup.
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