Airtac GAFC Air Service Unit GAFC400N15SNWK
The AirTAC Airtac GAFC Air Service Unit GAFC400N15SNWK 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 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination
- Port size1/2"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 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 GAFC400N15SNWK
This AirTAC GAFC400N15SNWK is an F.R.L. combination built from two units on one T-shape bracket: a filter-regulator body that cleans the air and sets its pressure, followed by a lubricator that adds a controlled oil mist. The 1/2in port and 1810 g mass place it in the mid-size GAFC400 class, suited to machine headers feeding several actuators. It carries a 5 um element for finer filtration and a nylon bowl, with the standard 0.15-0.9 MPa (20-130 psi) regulation range.
The filter and regulator share one body, so this set has one less inter-unit joint than a three-piece filter-regulator-lubricator train of the same port size. Air is filtered and regulated first, then the lubricator adds oil mist last, so oil never passes back through the regulator seat. The 100 cc condensate bowl and 185 cc oil bowl set the service interval, and the 1.0 MPa (145 psi) maximum supply leaves about 0.1 MPa above the 0.9 MPa top of the regulated band.
Airtac GAFC Air Service Unit GAFC400N15SNWK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC400N15SNWK |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 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 GAFC400N15SNWK
| 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. |
| 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 GAFC400N15SNWK Is Used
Precision valve actuation
Feed a bank of pneumatic positioners on a packaging line where the 5 um element protects fine internal orifices from abrasive particles.
Machine tool lubrication
Supply a controlled oil mist to slideway lubrication points on a CNC lathe, with the 185 cc oil bowl reducing refill frequency during long shifts.
Multi-station assembly
Power a rotary indexing table with multiple clamping cylinders, using the 100 cc condensate bowl to handle moisture from a humid compressor supply.
Is the Airtac GAFC Air Service Unit GAFC400N15SNWK the Right Air-Prep Unit?
The GAFC400N15SNWK uses a 1/2in port, which sits between the GAFC300's 3/8in and the GAFC500's 3/4in options. The catalogue flow curve for the GAFC400 is plotted to 6000 L/min at 0.7 MPa inlet, roughly 70% larger than the GAFC300's 3500 L/min envelope, so choose this body when multiple downstream devices share the supply. The nylon bowl is a build choice; the shared specification of 1.0 MPa maximum pressure and -5 to 70 C temperature does not change with material, so confirm nylon suits your environment. The semi-auto drain dumps condensate on each pressure drop and the manual drain works on demand, while the 5 um element traps finer particles than the standard 40 um grade, at the cost of more frequent element service. No gauge is supplied, but the 1/4in gauge connection allows one to be added later. The reverse-flow (reflux) valve is fitted, and the PT thread carries a gauge scale in MPa/psi if you add one. The two units are orderable separately as the GAFR400-15 filter & regulator and the GAL400-15 lubricator. With a 1.0 MPa max supply, the 0.9 MPa top setting leaves only about 0.1 MPa of regulation headroom, so plan the supply pressure near 1.0 MPa if you need the full 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 GAFC400N15SNWK FAQ
The GAFC400N15SNWK 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 works in temperatures from -5 to 70 C and requires 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 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 shows as a separate pneumatic symbol. The PT thread means any gauge added should read in MPa and psi.
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