Airtac GAFC Air Service Unit GAFC500C20SW
The AirTAC Airtac GAFC Air Service Unit GAFC500C20SW 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 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 GAFC500C20SW
This GAFC500C20SW is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator, mounted on a T-bracket with quick clamps. The 3/4in port and 1910 g mass put it in the mid-large size class, suited for a machine header or a multi-station line rather than a single small actuator. It carries a 5 um element to trap fine particles and a metal bowl, with both a semi-auto and a manual drain fitted.
Air enters the first body where solids and moisture drop out and pressure is set to the standard 0.15-0.9 MPa (20-130 psi) band, then the lubricator adds a metered oil mist downstream. The 108 cc condensate bowl and 225 cc oil bowl define the service interval, so this unit needs less frequent attention than smaller bodies. A circular gauge is fitted, reading in MPa and psi for the PT thread. Max supply is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and the operating range is -5 to 70 C.
Airtac GAFC Air Service Unit GAFC500C20SW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500C20SW |
|---|---|
| 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 | 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 GAFC500C20SW
| 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. |
| 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 GAFC500C20SW Is Used
Machine tool coolant systems
The 3/4in port and 5 um element suit a CNC lathe or mill header, feeding the way lube and spindle air with fine filtration and a steady 0.15-0.9 MPa supply.
Multi-station assembly line
A 1910 g unit with 108 cc condensate and 225 cc oil bowls handles a bank of pneumatic cylinders on a pallet conveyor, cutting service stops versus smaller FRLs.
Packaging film tensioning
For a film winder with air brakes and dancer rolls, the 5 um element and regulated output keep tension stable, while the metal bowl suits a plant with occasional washdowns.
Is the Airtac GAFC Air Service Unit GAFC500C20SW the Right Air-Prep Unit?
Choose this GAFC500C20SW for a 3/4in line that needs fine 5 um filtration and a metal bowl. The metal bowl is a build choice; the catalogue gives no impact or chemical data, so confirm it suits your surroundings. The drain is the semi-auto plus manual pair: the semi-auto dumps condensate when pressure drops, and the manual drain works on demand. The standard type regulates from 0.15 to 0.9 MPa (20-130 psi), and the fitted gauge reads MPa and psi on the PT thread. If you need a reverse-flow valve, the K option adds it; if you want a lower 0.15-0.4 MPa range, step to an L-type model. For oil-free air downstream, omit the lubricator and choose a plain GAFR500-20 filter-regulator instead. Spares are the GAFR500-20 and GAL500-20, both orderable separately. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan inlet pressure near 1.0 MPa 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 GAFC500C20SW FAQ
The GAFC500C20SW is a standard-type F.R.L. combination with a 3/4in port. It regulates from 0.15 to 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). Operating temperature is -5 to 70 C. The condensate bowl holds 108 cc and the oil bowl 225 cc. Recommended lubricant is ISO VG 32. The unit weighs 1910 g.
The C code specifies a metal bowl, which is a build choice; the catalogue does not state impact or chemical resistance, so verify it fits your environment. The W code means a 5 um element, trapping finer particles than the standard 40 um for precision valves or instrument air. This finer element will need more frequent service, but the 108 cc condensate bowl helps extend intervals between checks.
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