Airtac GAFC Air Service Unit GAFC40015ALNWK
The AirTAC Airtac GAFC Air Service Unit GAFC40015ALNWK 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 5 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 grade5 µm
- Bowl materialPC
- 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 GAFC40015ALNWK
Air enters the GAFC40015ALNWK through a 1/2in port and first meets the filter-regulator body, where a 5 um element strips solids and moisture and the lower-pressure regulator sets the outlet between 0.15 and 0.4 MPa (20-58 psi). The lubricator then adds a metered ISO VG 32 oil mist downstream, so the regulated seat never sees oil. With a 100 cc condensate bowl and a separate 185 cc oil bowl, this 1810 g combination is built for a mid-size machine header where operators need a gentle, consistent pressure.
The automatic drain clears collected water without anyone opening a valve, and the reverse-flow (reflux) valve is fitted as an ordering difference. No gauge is supplied, so the set pressure cannot be read locally unless you add one to the 1/4in gauge connection. The catalogue flow curve for this body is plotted to 6000 L/min at 0.7 MPa inlet, which is a sizing envelope rather than a rated capacity.
Airtac GAFC Air Service Unit GAFC40015ALNWK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC40015ALNWK |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | PC |
| 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 GAFC40015ALNWK
| GAFC400 | GA400 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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. |
| W | Filtering grade 5 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 GAFC40015ALNWK Is Used
Low-pressure clamping fixtures
Feed a multi-point workholding fixture on a CNC machine where the 0.15-0.4 MPa band keeps delicate parts from distorting under clamp force.
Laboratory air bearings
Supply a clean, oil-misted air film to a lab positioning stage that runs on air bearings, with the 5 um element protecting the porous graphite.
Assembly line lubrication
Run a guided rodless cylinder on a light assembly conveyor, where the automatic drain and 185 cc oil bowl cut maintenance rounds.
Is the Airtac GAFC Air Service Unit GAFC40015ALNWK the Right Air-Prep Unit?
Choose the GAFC40015ALNWK when your line needs a 1/2in port and a regulated ceiling of 0.4 MPa (20-58 psi). The L type suits low-pressure circuits such as air bearings or light clamping, but if the machine may ever require more than 0.4 MPa, step to the standard S type instead. The 5 um element traps finer particles than the standard 40 um grade, which helps precision valves but means more frequent element service. The PC bowl is a build choice; confirm it suits your surroundings, and note the automatic drain needs no operator attention. The PT thread carries an MPa/psi gauge scale if you fit one later. Spares are the GAFR400-15 filter-regulator and the GAL400-15 lubricator, both orderable separately. 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.
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 GAFC40015ALNWK FAQ
It is a lower-pressure F.R.L. combination with a 1/2in port, working range 0.15-0.4 MPa (20-58 psi), max pressure 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), temperature range -5 to 70 C. The drain bowl holds 100 cc, the oil bowl 185 cc, and the unit weighs 1810 g. Use ISO VG 32 oil in the lubricator.
The N after the port code means no gauge is supplied, so you cannot read the set pressure without adding one to the 1/4in gauge connection. The K code means the reverse-flow (reflux) valve is fitted, which the catalogue draws as a separate pneumatic symbol. The automatic drain (A) clears condensate without an operator.
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