Airtac GAFC Air Service Unit GAFC400N15ALK
The AirTAC Airtac GAFC Air Service Unit GAFC400N15ALK 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 gaugeCircular, MPa / psi
- 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 GAFC400N15ALK
This AirTAC GAFC400N15ALK is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator on a shared T-bracket. Air is filtered and set to pressure first, then the lubricator adds a metered oil mist last, so oil never travels back through the regulator seat. With a 1/2in port and a 1810 g mass, this unit suits mid-size machine headers rather than small jigs.
The nylon bowl holds 100 cc of condensate, while the oil bowl holds 185 cc, and the automatic drain clears water without an operator. The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), with a 40 um element and a fitted circular gauge reading MPa/psi on the PT thread. A reverse-flow (reflux) valve is included, and the catalogue flow curve plots to 6000 L/min at 0.7 MPa inlet for sizing reference.
Airtac GAFC Air Service Unit GAFC400N15ALK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400N15ALK |
|---|---|
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAFC Air Service Unit GAFC400N15ALK
| 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). |
| (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.
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 GAFC400N15ALK Is Used
Precision machining center
Feed a 1/2in header on a CNC machining center where consistent lower-pressure air around 0.3 MPa (43 psi) drives workholding clamps, with the automatic drain handling condensate from the compressor.
Assembly line lubrication
Supply oil-misted air to a multi-station assembly line with pneumatic screwdrivers and actuators, where the 185 cc oil bowl reduces refill frequency and the 100 cc drain bowl extends maintenance intervals.
Packaging equipment
Run a packaging machine's film-sealing cylinders and grippers at a regulated 0.35 MPa (51 psi), using the 6000 L/min flow envelope at 0.7 MPa inlet to size the supply for intermittent high demand.
Is the Airtac GAFC Air Service Unit GAFC400N15ALK the Right Air-Prep Unit?
Choose the GAFC400N15ALK when your line needs 1/2in ports and a regulated band capped at 0.4 MPa (20-58 psi) - the L type tops out there, so if the machine may ever require more pressure, select a 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 your surroundings. The automatic drain handles wet or unattended lines, and the 40 um element is the standard grade; step to a 5 um W element for finer filtration. The fitted gauge reads MPa/psi for the PT thread, and the K code adds the reverse-flow valve. Spares are orderable separately as the GAFR400-15 filter & regulator and the GAL400-15 lubricator. 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 - plan the supply 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 GAFC400N15ALK FAQ
The GAFC400N15ALK operates from 0.15 to 0.4 MPa (20-58 psi) with a max pressure of 1.0 MPa (145 psi) and a 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 and the oil bowl holds 185 cc, with a total weight of 1810 g.
The L type regulates to a maximum of 0.4 MPa (58 psi), while the standard S type reaches 0.9 MPa (130 psi). This means the L type gives up about 44% of the top range, so it is only suitable for low-pressure circuits that never need more than 0.4 MPa output.
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Standard models are processed and dispatched in 3-5 business days.
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