Airtac GAFC Air Service Unit GAFC500C20LNW
The AirTAC Airtac GAFC Air Service Unit GAFC500C20LNW 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
- Drainsemi-auto + manual
- 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 GAFC500C20LNW
This AirTAC F.R.L. combination pairs a filter-regulator body with a lubricator on a shared T-bracket, so the air is cleaned, set to pressure, and then oil-misted in one compact line. The GAFC500C20LNW uses a 3/4in port, a 5 um element, and a metal bowl, with the lower-pressure regulator covering 0.15-0.4 MPa (20-58 psi).
Because the filter and regulator share one housing, the assembly is two pieces instead of three, which means one less inter-unit joint to seal on a 1910 g unit. The 108 cc condensate bowl and 225 cc oil bowl set the service rhythm, and the semi-auto drain dumps water each time pressure drops while the manual drain gives on-demand control.
Airtac GAFC Air Service Unit GAFC500C20LNW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500C20LNW |
|---|---|
| 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 | 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 | 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 GAFC500C20LNW
| 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". |
| (blank) | Drain: Semi-auto drain + manual 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 GAFC500C20LNW Is Used
Machine tool coolant systems
Feed a 3/4in header supplying coolant valves and clamping cylinders on a CNC lathe, where the lower pressure range protects sensitive components and the 5 um element keeps fine debris out of pilot lines.
Assembly line pallet stops
Power multiple pallet-stop cylinders on an automotive assembly transfer line, using the 225 cc oil bowl to keep lubricator refills infrequent across a full shift of cycling.
Test rig air supply
Provide regulated air to a laboratory test bench with precision regulators downstream, where the 0.4 MPa ceiling suits low-pressure pneumatic experiments and the metal bowl handles frequent line draining.
Is the Airtac GAFC Air Service Unit GAFC500C20LNW the Right Air-Prep Unit?
Choose the GAFC500 body when a 3/4in line feeds a machine header or several actuators, since its 7000 L/min flow curve at 0.7 MPa inlet is plotted for larger demands. The metal bowl is specified by the C code, and the shared specification of 1.0 MPa max and -5 to 70 C applies regardless of material, so confirm the metal suits your environment. The L type regulates only to 0.4 MPa, so if the machine may ever need more pressure, step to the S type instead. No gauge is supplied with the N code, but the 1/4in gauge connection is ready for one. The 5 um element traps finer particles than the standard 40 um, at the cost of more frequent element service. The PT thread carries a gauge scale in MPa/psi if you add one. Spares are the GAFR500-20 filter-regulator and GAL500-20 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 (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 GAFC500C20LNW FAQ
This F.R.L. combination 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). It works in -5 to 70 C temperatures, uses ISO VG 32 oil, has a 108 cc drain bowl and a 225 cc oil bowl, and weighs 1910 g. The 3/4in port connects to a 5 um element with a metal bowl.
The N in the code after the port means no pressure gauge is supplied with the unit. The GAFC500 body has a 1/4in gauge connection, so you can add a compatible gauge later. Without one, the set pressure cannot be read directly on the unit.
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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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