Airtac GAFC Air Service Unit GAFC500N20ALNW
The AirTAC Airtac GAFC Air Service Unit GAFC500N20ALNW 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 3/4" ports, a 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialNylon
- Drainautomatic
- Pressure gaugeNot fitted
- Weight1910 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 GAFC500N20ALNW
This two-piece F.R.L. combination pairs a GA-series filter-regulator with a GA-series lubricator on a T-shape bracket, so the air is cleaned, set to pressure, and then oil-misted in sequence. The GAFC500N20ALNW uses a 3/4in port and weighs 1910 g, placing it in the upper mid-size class where a proper panel or frame mount is expected rather than support from the tubing.
The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), which suits applications with a modest pressure ceiling. A 5 um element traps fine particles for sensitive equipment, while the nylon bowl holds 108 cc of condensate and the oil bowl holds 225 cc. No gauge is fitted, so the 1/4in gauge connection is available if you add one later.
Airtac GAFC Air Service Unit GAFC500N20ALNW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500N20ALNW |
|---|---|
| Series | GAFC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 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 | 108 cc |
| Capacity of oil bowl | 225 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 1910 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 GAFC500 is 1/4" if you add one.
Model Code: Airtac GAFC Air Service Unit GAFC500N20ALNW
| GAFC500 | GA500 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). |
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| 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. |
| (blank) | No reverse-flow valve. |
Constituent units, orderable separately as spares: GAFR500-20 filter & regulator, GAL500-20 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 | GAFC500 · 3/4" · curve to 7000 L/min |
|---|---|
| One size down | GAFC400 |
| One size up | GAFC600 (curve to 12000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Where the Airtac GAFC Air Service Unit GAFC500N20ALNW Is Used
Precision Assembly Stations
Feed a 3/4in header supplying pneumatic torque tools on an assembly line, where the 5 um element protects tool internals and the lower pressure range prevents over-torquing.
Packaging Line Air Prep
Condition air for case packers and palletizers that cycle frequently, with the automatic drain handling condensate from moist compressor air without stopping production.
Machine Tool Lubrication
Supply oil-misted air to slide ways and guide rails on a CNC machine, where the 225 cc oil bowl supports longer runs between refills and the 0.4 MPa ceiling matches low-pressure lubrication circuits.
Is the Airtac GAFC Air Service Unit GAFC500N20ALNW the Right Air-Prep Unit?
Choose the GAFC500N20ALNW when your line needs 3/4in ports and a regulated band that tops out at 0.4 MPa. The automatic drain clears condensate without an operator, which is valuable for unattended or wet lines, and the 5 um element filters finer particles than the standard 40 um grade at the cost of more frequent element service. The nylon bowl is a build choice, but confirm it suits your surroundings since the catalogue gives no material-specific data. The PT thread comes with a gauge scale in MPa/psi, though no gauge is supplied here. If your machine may ever need more than 0.4 MPa, the L type is the wrong part - select the standard S type instead. The filter-regulator and lubricator are orderable separately as GAFR500-20 and GAL500-20. 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 (3/4" 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 108 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 1910 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 GAFR500-20 filter-regulator on that branch instead of the full combination.
Airtac GAFC Air Service Unit GAFC500N20ALNW FAQ
This F.R.L. combination operates from 0.15 to 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). The temperature range is -5 to 70 C, and it must not freeze. The drain bowl holds 108 cc, the oil bowl holds 225 cc, and the unit weighs 1910 g. Recommended lubricant is ISO VG 32 or equivalent.
The N after the port code means no gauge is supplied with this unit. The gauge connection on the GAFC500 body is 1/4in, so you can add a gauge there if you need to read the set pressure. The N before the port code indicates the bowl is nylon, so this model has both a nylon bowl and no gauge.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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