Airtac GAFC Air Service Unit GAFC500N20SWK
The AirTAC Airtac GAFC Air Service Unit GAFC500N20SWK 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 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- 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 GAFC500N20SWK
Air enters the GAFC500N20SWK and first passes through a filter and regulator that share one body, so solids and moisture drop out and pressure is set before the air moves on. The lubricator then adds a controlled oil mist as the final step, keeping oil away from the regulator seat. This 3/4in unit weighs 1910 g and carries a 5 um element for finer filtration.
The nylon bowls hold 108 cc for condensate and 225 cc for oil, which means fewer visits to check levels on a busy line. The circular gauge is fitted and reads in MPa/psi for the PT thread. With a standard pressure range of 0.15-0.9 MPa (20-130 psi), this unit suits machines that need a solid supply without frequent adjustment.
Airtac GAFC Air Service Unit GAFC500N20SWK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500N20SWK |
|---|---|
| Series | GAFC500 F.R.L. combination |
| Port size | 3/4" (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 | 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 GAFC500N20SWK
| 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". |
| (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). |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
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 GAFC500N20SWK Is Used
Machine tool coolant systems
Feed a 3/4in header on a CNC machining center where the 5 um element protects precision solenoid valves from fine swarf particles.
Assembly line pallet stops
Supply multiple pneumatic stops on a pallet conveyor, where the 225 cc oil bowl keeps lubricated actuators cycling through a full shift.
Packaging line tensioning
Run film tensioning cylinders on a wrapping machine, using the semi-auto drain to clear condensate during frequent pressure drops.
Is the Airtac GAFC Air Service Unit GAFC500N20SWK the Right Air-Prep Unit?
Choose the GAFC500N20SWK when a 3/4in port matches your header and the 1910 g mass tells you this needs a proper panel mount, not tubing support. The nylon bowl is a build choice, but the shared specification of 1.0 MPa max and -5 to 70 C does not change with material, so confirm it suits your environment. The semi-auto drain dumps condensate when pressure drops, while the manual drain gives on-demand control, and the 5 um element traps finer particles than the standard 40 um at the cost of more frequent service. A reverse-flow valve is fitted, and the gauge reads MPa/psi on the PT thread. The filter-regulator and lubricator are orderable separately as GAFR500-20 and GAL500-20. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated range, so plan inlet pressure near 1.0 MPa if you need the full output.
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 GAFC500N20SWK FAQ
The GAFC500N20SWK operates at 0.15-0.9 MPa (20-130 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, and it uses ISO VG 32 lubricant. The drain bowl holds 108 cc, the oil bowl holds 225 cc, and the unit weighs 1910 g.
The K indicates a reverse-flow (reflux) valve is fitted to this unit. The catalogue shows it as a separate pneumatic symbol. The filter-regulator and lubricator are still the two main bodies, and they are orderable separately as GAFR500-20 and GAL500-20.
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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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