Airtac GAFC Air Service Unit GAFC50020SW
The AirTAC Airtac GAFC Air Service Unit GAFC50020SW 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 materialPC
- 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 GAFC50020SW
This GAFC50020SW is an F.R.L. combination built as two units on one bracket: a filter-regulator body handles filtration and pressure setting, then a lubricator adds a controlled oil mist downstream. With a 3/4in port and 1910 g mass, it suits machine headers and multi-station lines where a smaller unit would starve the system.
The standard type regulates from 0.15 to 0.9 MPa (20-130 psi), and the 5 um element traps fine particles for sensitive valves. The 108 cc condensate bowl and 225 cc oil bowl set the service rhythm, while the circular gauge reads MPa/psi on the default PT thread. Max supply is 1.0 MPa (145 psi), leaving about 0.1 MPa above the 0.9 MPa top of the range.
Airtac GAFC Air Service Unit GAFC50020SW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC50020SW |
|---|---|
| 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 | PC |
| 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 GAFC50020SW
| GAFC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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 GAFC50020SW Is Used
Machine tool header
Feed a 3/4in header supplying multiple pneumatic cylinders on a CNC machining center, where the 5 um element protects precision spool valves from fine wear particles.
Multi-station assembly line
Supply filtered, regulated, lubricated air to a 12-station conveyor system with pneumatic stops and actuators, using the 225 cc oil bowl to reduce refill frequency.
Packaging machine air prep
Prepare air for a high-speed carton former with multiple grippers, where the 0.15-0.9 MPa range covers typical actuator pressures and the 108 cc drain bowl handles condensate from humid plant air.
Is the Airtac GAFC Air Service Unit GAFC50020SW the Right Air-Prep Unit?
Choose this GAFC500 if your line needs 3/4in ports and the 1910 g weight indicates a proper panel mount, not tubing support. The PC bowl is the standard build; confirm it suits your environment since the catalogue gives no material-specific ratings. The semi-auto drain dumps condensate on pressure drop, with a manual backup for on-demand use.
This model carries the 5 um element for finer filtration, and the PT thread means the gauge scale is MPa/psi. If you need oil-free air downstream, omit the lubricator and select a plain GAFR500-20 filter-regulator instead. Spare parts are orderable as GAFR500-20 and GAL500-20. The 7000 L/min flow curve at 0.7 MPa inlet is about 2x the GAFC300's 3500 L/min envelope, showing the capacity step for larger installations.
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 GAFC50020SW FAQ
This F.R.L. combination operates from 0.15 to 0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32. It has a 108 cc condensate bowl, 225 cc oil bowl, and weighs 1910 g.
The 5 um element traps finer particles than the standard 40 um grade, which protects downstream precision valves but means more frequent element service. The element is replaceable, and the GAFR500-20 filter-regulator unit can be serviced separately from the GAL500-20 lubricator without replacing the whole assembly.
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