Airtac GAFC Air Service Unit GAFC500C20S
The AirTAC Airtac GAFC Air Service Unit GAFC500C20S 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 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 GAFC500C20S
This GAFC500C20S is a two-piece F.R.L. combination rated for 3/4in lines. The first body houses both the filter and the regulator, so air is cleaned and set to 0.15-0.9 MPa (20-130 psi) before it reaches the separate lubricator body. A circular gauge with an MPa/psi scale is fitted to show the regulated pressure.
The metal bowls hold 108 cc for condensate and 225 cc for oil, and the complete unit weighs 1910 g. With a 40 um element and both semi-auto and manual drains fitted, this size class suits machines that run continuously and need a generous service interval.
Airtac GAFC Air Service Unit GAFC500C20S Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500C20S |
|---|---|
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAFC Air Service Unit GAFC500C20S
| 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). |
| (blank) | Circular pressure gauge fitted. |
| (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 GAFC500C20S Is Used
Machine tool lubrication
Feed a CNC lathe's way-lubrication system with filtered, regulated air and a metered oil mist. The 225 cc oil bowl supports extended machining cycles before a refill is needed.
Assembly line actuators
Supply a multi-station assembly conveyor's pneumatic cylinders and grippers. The 3/4in port and 1910 g body handle the air demand of several actuators running in sequence.
Packaging equipment
Protect a carton-sealing machine's valves and cylinders from moisture and particles. The 108 cc condensate bowl captures water from the supply, and the lubricator keeps moving parts coated.
Is the Airtac GAFC Air Service Unit GAFC500C20S the Right Air-Prep Unit?
Choose the GAFC500 when a 3/4in port and a 1910 g body are right for your header. The metal bowl is specified by the C code, and the standard S type regulates from 0.15 to 0.9 MPa (20-130 psi). The semi-auto drain dumps condensate when pressure drops, while the manual drain gives on-demand control. A 5 um element is available with the W code for finer filtration, and the K code adds a reverse-flow valve. The gauge reads in MPa and psi for the default PT thread. Spare parts are orderable as GAFR500-20 and GAL500-20. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan the inlet pressure accordingly.
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 GAFC500C20S FAQ
The GAFC500C20S operates from 0.15 to 0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It is rated for -5 to 70 C and uses ISO VG 32 oil. The condensate bowl holds 108 cc, the oil bowl holds 225 cc, and the complete unit weighs 1910 g.
The C in the model code specifies a metal bowl. The catalogue rates PC, metal, and nylon bowls to the same 1.0 MPa maximum and -5 to 70 C range. Metal is a build choice for the unit, but you should confirm it suits your specific environment, as the catalogue provides no material-specific chemical or impact data.
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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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