Airtac GAFC Air Service Unit GAFC500C20SN
The AirTAC Airtac GAFC Air Service Unit GAFC500C20SN 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 40 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 grade40 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 GAFC500C20SN
This GAFC500C20SN is a two-piece F.R.L. combination: a filter-regulator body handles filtration and pressure control, and a separate lubricator adds a metered oil mist downstream. With a 3/4" port and a 1910 g mass, it suits machine headers and multi-station lines where a single point of air preparation feeds several actuators.
The standard pressure range is 0.15-0.9 MPa (20-130 psi), with a 40 um element and a metal bowl. The 108 cc condensate bowl and 225 cc oil bowl define the service interval, so this size class needs fewer interventions than smaller bodies. No gauge is fitted; the 1/4" gauge connection is ready for one if you need to read the set pressure.
Airtac GAFC Air Service Unit GAFC500C20SN Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500C20SN |
|---|---|
| Series | GAFC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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 GAFC500C20SN
| 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| N | No pressure gauge; 1/4" gauge connection. |
| (blank) | Filtering grade 40 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 GAFC500C20SN Is Used
Machine headers
Feed a multi-station assembly machine header where a 3/4" line distributes prepared air to several pneumatic cylinders and valves.
Conveyor systems
Supply a long conveyor line with multiple air cylinders for sorting and diverting, where the 225 cc oil bowl extends time between lubricator refills.
Packaging lines
Run a carton-forming or wrapping station that needs consistent pressure and lubrication for high-cycle pneumatic actuators.
Is the Airtac GAFC Air Service Unit GAFC500C20SN the Right Air-Prep Unit?
Choose the GAFC500 when a 3/4" port and the 1910 g mass fit your header layout. The metal bowl is a build choice, not a performance upgrade - the 1.0 MPa max and -5 to 70 C rating are identical across bowl materials, so confirm compatibility for your environment. The semi-auto drain dumps condensate on pressure drops, while the manual drain gives on-demand control. The standard type regulates 0.15-0.9 MPa (20-130 psi); the L type tops out at 0.4 MPa if you need a lower ceiling. The 40 um element handles general shop air; the W option upgrades to 5 um for finer filtration. PT threads come with an MPa/psi gauge scale. The GAFR500-20 filter-regulator and GAL500-20 lubricator are orderable separately. Since the lubricator adds oil mist, choose a plain GAFR if your line must stay oil-free. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan a supply near the maximum if you need the full regulated 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 GAFC500C20SN FAQ
The GAFC500C20SN 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). The temperature range is -5 to 70 C. It has a 108 cc drain bowl and a 225 cc oil bowl, weighs 1910 g, and the recommended lubricant is ISO VG 32.
The N in the code after the port means no gauge is supplied. The GAFC500 body has a 1/4" gauge connection, so you can add a gauge later if you need to read the set pressure. The PT thread version uses an MPa/psi gauge scale when a gauge is fitted.
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Covers non-human-caused product damage.
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