Airtac GAFC Air Service Unit GAFC500C20ALW
The AirTAC Airtac GAFC Air Service Unit GAFC500C20ALW 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 materialMetal
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- 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 GAFC500C20ALW
This GAFC500C20ALW is an F.R.L. combination where the filter and regulator share one body, paired with a lubricator on a T-bracket. The 3/4" port and 1910 g mass place it in the large size class for machine headers or multi-station lines, needing a proper panel mount rather than tubing support.
Air enters the first body where solids and moisture drop out and pressure is set to the lower range of 0.15-0.4 MPa (20-58 psi), then the lubricator adds a controlled oil mist last. The 5 um element traps finer particles than the standard 40 um grade. A circular gauge is fitted, reading MPa/psi for the PT thread.
Airtac GAFC Air Service Unit GAFC500C20ALW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500C20ALW |
|---|---|
| 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 | Metal |
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAFC Air Service Unit GAFC500C20ALW
| GAFC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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). |
| (blank) | Circular pressure gauge fitted. |
| 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 GAFC500C20ALW Is Used
Machine Tool Header
Feed a 3/4" header supplying multiple pneumatic actuators on a CNC machining center, where the 5 um element protects precision spool valves and the automatic drain handles condensate from continuous operation.
Assembly Line Lubrication
Supply oil-misted air to a multi-station assembly conveyor with pneumatic clamps and grippers, using the 225 cc oil bowl to reduce refill frequency during long production runs.
Packaging Machine Air Prep
Prepare air for a high-speed packaging machine with multiple cylinders, where the lower pressure range suits delicate handling operations and the metal bowl resists accidental impacts in a busy plant environment.
Is the Airtac GAFC Air Service Unit GAFC500C20ALW the Right Air-Prep Unit?
The L type tops out at 0.4 MPa, so if your process may ever require more pressure, this is the wrong part - choose the standard S type instead. The metal bowl is specified by the C code; 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 clears condensate without an operator, ideal for unattended lines. The 5 um element suits precision valves but will need more frequent service than 40 um. The PT thread means the gauge scale is MPa/psi. Spares are orderable as GAFR500-20 and GAL500-20. With a 1.0 MPa max supply, you have about 0.6 MPa 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 GAFC500C20ALW FAQ
This lower-pressure unit operates at 0.15-0.4 MPa (20-58 psi) with a max pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Temperature range is -5 to 70 C. The drain bowl holds 108 cc and the oil bowl 225 cc. Recommended lubricant is ISO VG 32. Total weight is 1910 g.
The W code specifies a 5 um filtering element instead of the standard 40 um. This traps much finer particles, which is important for precision pneumatic valves or instrument air. The trade-off is that the finer element will clog faster and require more frequent replacement or cleaning than a 40 um element.
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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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