Airtac GAFC Air Service Unit GAFC500N20ASWK
The AirTAC Airtac GAFC Air Service Unit GAFC500N20ASWK 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 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 GAFC500N20ASWK
This GAFC500 N20ASWK is a two-piece F.R.L. combination: a filter-regulator body handles filtration and pressure control, while a separate lubricator adds a metered oil mist downstream. The 3/4in port and 1910 g mass place it in the mid-large size class, suited for multi-station lines rather than single actuators.
The nylon bowl holds 108 cc of condensate and the oil bowl holds 225 cc, so service intervals are long for a unit this size. It regulates from 0.15 to 0.9 MPa (20-130 psi) with a 5 um element for finer filtration, and the automatic drain clears water without an operator. The circular gauge reads in MPa/psi, matching the PT thread.
Airtac GAFC Air Service Unit GAFC500N20ASWK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500N20ASWK |
|---|---|
| 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 | 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 GAFC500N20ASWK
| 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. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
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 GAFC500N20ASWK Is Used
Machine tool lubrication
Feed a 3/4in header on a CNC lathe or milling machine, where the 5 um element protects precision spindle valves and the automatic drain handles condensate from frequent cycling.
Multi-station assembly line
Supply a bank of pneumatic cylinders on a packaging or assembly conveyor, where the 225 cc oil bowl keeps several lubricators working between refills.
Test rig air preparation
Prepare air for a hydraulic test bench or pneumatic test fixture, where the 0.15-0.9 MPa range covers most actuation pressures and the gauge lets operators set the exact value.
Is the Airtac GAFC Air Service Unit GAFC500N20ASWK the Right Air-Prep Unit?
Choose the GAFC500 when a 3/4in line feeds several valves or a small machine header, and the 7000 L/min plotted flow curve at 0.7 MPa inlet shows the sizing envelope. The nylon bowl is a build choice, not a performance upgrade, so confirm it suits your environment before ordering. The automatic drain suits wet or unattended lines, while the 5 um element traps finer particles than the standard 40 um for sensitive valves.
The reverse-flow valve is fitted per the K code, and the gauge is supplied with an MPa/psi scale. Spares are the GAFR500-20 filter-regulator and the GAL500-20 lubricator, both orderable separately. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the regulated range, so plan the inlet pressure carefully 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 GAFC500N20ASWK FAQ
The working pressure range is 0.15-0.9 MPa (20-130 psi), with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C and uses ISO VG 32 oil. The drain bowl holds 108 cc, the oil bowl 225 cc, and the unit weighs 1910 g.
The K indicates a reverse-flow (reflux) valve is fitted. The catalogue shows it as a separate pneumatic symbol, and it is included in this build. The filter and regulator share one body, so the set is two pieces: the GAFR500-20 and the GAL500-20 lubricator.
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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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