Airtac GAFC Air Service Unit GAFC400N15LNK
The AirTAC Airtac GAFC Air Service Unit GAFC400N15LNK 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
- 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 GAFC400N15LNK
This GAFC400N15LNK is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator on a shared bracket. The 1/2in port and 1810 g mass place it in the mid-size class, suited for a machine header feeding several actuators. Air enters the first body where solids and moisture are removed and pressure is set to the lower 0.15-0.4 MPa (20-58 psi) band, then the lubricator adds a metered oil mist last, so oil never passes back through the regulator seat.
The nylon bowl holds 100 cc of condensate and the oil bowl holds 185 cc, so service intervals are driven by how often the line is wet rather than by the element. A 40 um element is fitted, and the reverse-flow (reflux) valve is included per the K code. With no gauge supplied, the 1/4in gauge connection is the point to add one if the set pressure needs to be read on site.
Airtac GAFC Air Service Unit GAFC400N15LNK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400N15LNK |
|---|---|
| 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 | 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 GAFC400N15LNK
| 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. |
| 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. |
| 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.
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 GAFC400N15LNK Is Used
Precision pressure set
Set a lathe's air chuck to 0.3 MPa with the lower-pressure range, keeping the grip force below the part's crush limit while the 40 um element protects the chuck valve.
Machine header feed
Feed a 1/2in header on a stamping press with filtered, regulated air at 0.35 MPa, with the lubricator adding oil mist for the die cylinders downstream.
Assembly line tooling
Supply a multi-station assembly bench where each station has its own actuator, using the 100 cc bowl to handle condensate from a humid compressor line.
Is the Airtac GAFC Air Service Unit GAFC400N15LNK the Right Air-Prep Unit?
Choose this GAFC400N15LNK when the line must stay below 0.4 MPa and a 1/2in port matches the header. The L type tops out at 0.4 MPa, so if the machine may ever need more, step to the standard S type instead. The nylon bowl is a build choice; the shared specification of 1.0 MPa max and -5 to 70 C does not change with material, so confirm it suits the surroundings. The semi-auto drain dumps on each pressure drop while the manual drain works on demand, and the 40 um element handles general shop air. The reverse-flow valve is fitted per the K code, and the gauge connection is 1/4in since no gauge ships. Spares are the GAFR400-15 filter-regulator and the GAL400-15 lubricator, both orderable separately. With a 1.0 MPa max supply, there is about 0.6 MPa above the 0.4 MPa top of the range, so the regulator has room to hold its setpoint without being starved.
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 GAFC400N15LNK FAQ
The working 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). Temperature range is -5 to 70 C. The drain bowl holds 100 cc and the oil bowl holds 185 cc. Recommended lubricant is ISO VG 32. The unit weighs 1810 g with a 1/2in port.
The N after the port code means no gauge is supplied. The GAFC400 body has a 1/4in gauge connection, so you can add a circular gauge there if you need to read the set pressure. Without one, the regulated pressure cannot be verified on the unit itself.
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