Airtac GAFC Air Service Unit GAFC500N20AS
The AirTAC Airtac GAFC Air Service Unit GAFC500N20AS 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 materialNylon
- Drainautomatic
- 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 GAFC500N20AS
This GAFC500N20AS is a two-piece F.R.L. combination: a filter-regulator body followed by a lubricator, mounted on a shared T-bracket with quick clamps. Air enters the 3/4in port, gets filtered and regulated in the first body, then the lubricator adds a controlled oil mist downstream. The nylon bowl holds 108 cc of condensate, while the oil bowl holds 225 cc, and the complete unit weighs 1910 g.
The standard pressure range is 0.15-0.9 MPa (20-130 psi), with a 40 um element filtering the air. A circular gauge is fitted, reading in MPa and psi for the PT thread. The automatic drain clears condensate without operator intervention, making this a suitable choice for a machine header feeding multiple stations where regular maintenance access is limited.
Airtac GAFC Air Service Unit GAFC500N20AS Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500N20AS |
|---|---|
| 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 | Nylon |
| Drain type | Automatic 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 GAFC500N20AS
| 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". |
| A | Drain: Automatic 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 GAFC500N20AS Is Used
Machine Tool Coolant Systems
Feed a 3/4in header supplying coolant valves and air cylinders on a CNC lathe, where the automatic drain prevents water carryover into solenoid valves.
Assembly Line Pneumatic Manifolds
Power a multi-station assembly line's manifold with regulated air and oil mist, keeping grippers and slides lubricated without frequent bowl checks.
Packaging Line Air Supply
Supply a packaging conveyor's pneumatic actuators and sensors, with the 225 cc oil bowl supporting continuous operation between shifts.
Is the Airtac GAFC Air Service Unit GAFC500N20AS the Right Air-Prep Unit?
Choose the GAFC500 for a 3/4in line that needs to supply a multi-station machine or a production line header. The 108 cc drain bowl and 225 cc oil bowl mean fewer service visits than the GAFC400's 100 cc and 185 cc bowls. The nylon bowl is specified here, and while the catalogue gives no material-specific ratings, confirm it suits your environment. The automatic drain is essential for wet or unattended lines, as it removes water without manual action. The 40 um element handles general shop air; select the W option for 5 um filtration if you feed precision valves. The PT thread comes with a MPa/psi gauge scale, so operators reading psi will find it familiar. Spare parts are the GAFR500-20 filter-regulator and GAL500-20 lubricator, both orderable separately. 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 your inlet pressure accordingly 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 GAFC500N20AS FAQ
The GAFC500N20AS 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). It works in -5 to 70 C temperatures and uses ISO VG 32 lubricant. The drain bowl holds 108 cc, the oil bowl holds 225 cc, and the unit weighs 1910 g.
The A code specifies an automatic drain that expels condensate from the 108 cc bowl without an operator. This is useful for wet lines or machines that run unattended, as it prevents water from reaching downstream components.
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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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