Airtac GAFC Air Service Unit GAFC400N15SK
The AirTAC Airtac GAFC Air Service Unit GAFC400N15SK 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 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 GAFC400N15SK
The GAFC400N15SK is an F.R.L. combination that pairs a filter-regulator with a lubricator on a single T-bracket, reducing the piece count to two while keeping all three functions. With a 1/2in port, this 1810 g unit fits into the mid-range of the GAFC family, sized for a machine header or a small multi-station line rather than a single actuator.
Air enters the first body where the 40 um element removes solids and moisture, and the regulator sets pressure across the 0.15-0.9 MPa (20-130 psi) band. The lubricator then adds a metered ISO VG 32 oil mist downstream, so oil never travels back through the regulator seat. A circular gauge with an MPa/psi scale is fitted, and the nylon bowl is a build choice for this model.
Airtac GAFC Air Service Unit GAFC400N15SK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400N15SK |
|---|---|
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAFC Air Service Unit GAFC400N15SK
| 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). |
| (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 GAFC400N15SK Is Used
Machine Tool Lubrication
Feed a 1/2in header on a CNC lathe or milling machine, providing filtered, regulated air and a controlled oil mist to slideways and tool changers.
Assembly Station Air Prep
Supply a multi-operator assembly bench where pneumatic screwdrivers and presses need consistent pressure and lubrication from one central point.
Packaging Line Header
Serve a carton erector or strapping machine with a 1/2in line, keeping the actuators and valves on the line within the 0.15-0.9 MPa band.
Is the Airtac GAFC Air Service Unit GAFC400N15SK the Right Air-Prep Unit?
Choose the GAFC400N15SK when a 1/2in port and the 0.15-0.9 MPa (20-130 psi) band suit your line. The nylon bowl is specified by the N before the port code, and the semi-auto plus manual drain pair is fitted. The 40 um element is the standard grade, and the K code adds a reverse-flow (reflux) valve, which the catalogue draws as a separate pneumatic symbol. The PT thread carries an MPa/psi gauge scale. Spares are orderable as GAFR400-15 and GAL400-15, both matching this body-port. With a 100 cc drain bowl and 185 cc oil bowl, this unit needs less frequent attention than the GAFC300's 60 cc and 98 cc bowls. Max supply of 1.0 MPa leaves about 0.1 MPa 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 GAFC400N15SK FAQ
The GAFC400N15SK operates on air from 0.15-0.9 MPa (20-130 psi), with a max pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It works in -5 to 70 C temperatures and needs ISO VG 32 oil in the lubricator. The drain bowl holds 100 cc and the oil bowl 185 cc, with a total weight of 1810 g.
The K code specifies a reverse-flow (reflux) valve fitted to the GAFC400N15SK. It is an ordering difference shown as a separate pneumatic symbol in the catalogue. The unit still uses the standard 40 um element and the semi-auto plus manual drain pair.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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