Airtac GAFC Air Service Unit GAFC500C20ALNW
The AirTAC Airtac GAFC Air Service Unit GAFC500C20ALNW 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 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 GAFC500C20ALNW
This GAFC500 F.R.L. combination pairs a filter-regulator body with a lubricator on a single T-bracket, so the 3/4in port unit filters, sets pressure, and adds oil mist in one compact assembly. The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), and the 5 um element traps fine particles for sensitive downstream equipment.
The metal bowl holds 108 cc of condensate while the separate oil bowl holds 225 cc, and at 1910 g this size class needs a proper panel mount rather than tubing support. The automatic drain clears water without operator attention, and the gauge connection is 1/4in if you add a pressure readout later.
Airtac GAFC Air Service Unit GAFC500C20ALNW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500C20ALNW |
|---|---|
| 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. 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 GAFC500C20ALNW
| 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). |
| 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 GAFC500C20ALNW Is Used
Precision machining coolant lines
Feed a 3/4in header supplying coolant valves on CNC lathes, where the lower 0.4 MPa range prevents over-pressurizing delicate solenoid pilots.
Assembly station air manifolds
Power multiple pneumatic screwdrivers on an automotive assembly line, with the 5 um element protecting tool internals from abrasive dust.
Packaging machine air preparation
Condition air for film-sealing actuators on a carton former, where the automatic drain keeps condensate from reaching cylinder seals during long shifts.
Is the Airtac GAFC Air Service Unit GAFC500C20ALNW the Right Air-Prep Unit?
Choose this GAFC500C20ALNW when you need a 3/4in port with a lower pressure ceiling of 0.4 MPa and fine 5 um filtration. The metal bowl suits installations where you want a rigid build, and the automatic drain handles wet lines or unattended operation. Since no gauge is fitted, plan to add one at the 1/4in connection if operators need to verify set pressure.
For oil-free lines, select a plain GAFR500-20 filter-regulator instead of this lubricator-equipped set. Spare parts are orderable 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 regulated top, so the unit can handle supply fluctuations without hitting its ceiling.
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 GAFC500C20ALNW FAQ
The working pressure range is 0.15-0.4 MPa (20-58 psi), with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Operating temperature is -5 to 70 C, and the recommended lubricant is ISO VG 32. The drain bowl holds 108 cc, the oil bowl holds 225 cc, and the unit weighs 1910 g.
The C code specifies a metal bowl, which is a build choice for the assembly; the shared specification of 1.0 MPa max and -5 to 70 C applies regardless of material. The N after the port means no gauge is supplied, but the 1/4in gauge connection is available if you add one later.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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