Airtac GAFC Air Service Unit GAFC500N20ASW
The AirTAC Airtac GAFC Air Service Unit GAFC500N20ASW 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 GAFC500N20ASW
This GAFC500N20ASW is a two-piece F.R.L. combination: the filter and regulator share one body, and the lubricator is mounted beside it on a T-bracket with quick clamps. Air is cleaned and set to pressure in the first body, then a metered oil mist is added downstream, so the regulator seat never sees oil. With a 3/4in port and a 1910 g mass, this unit belongs to the heavy end of the GAFC range and needs a proper panel or frame mount, not support from the tubing.
The standard pressure range is 0.15-0.9 MPa (20-130 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. The 5 um element traps finer particles than the standard 40 um grade, which suits precision valves but means more frequent element service. The nylon bowl is specified by the N code, and the circular gauge reads in MPa and psi on the default PT thread.
Airtac GAFC Air Service Unit GAFC500N20ASW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500N20ASW |
|---|---|
| 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 GAFC500N20ASW
| 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. |
| (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 GAFC500N20ASW Is Used
Machine tool coolant systems
Feed a 3/4in header supplying coolant valves and cylinders on a CNC lathe, where the 5 um element protects fine metering orifices and the automatic drain handles condensate from wet shop air.
Multi-station assembly lines
Supply a bank of pneumatic actuators on a pallet conveyor, where the 7000 L/min envelope at 0.7 MPa inlet supports multiple simultaneous movements and the 225 cc oil bowl keeps lubricator refills infrequent.
Packaging machine air prep
Prepare air for a carton erector with several grippers and pushers, where regulated pressure at 0.15-0.9 MPa (20-130 psi) and fine 5 um filtration prevent sticking in precision valves.
Is the Airtac GAFC Air Service Unit GAFC500N20ASW the Right Air-Prep Unit?
Choose the GAFC500 when a 3/4in line needs substantial flow - the catalogue flow curve plots to 7000 L/min at 0.7 MPa inlet, about double the GAFC400's 6000 L/min envelope. The nylon bowl is a build choice; the shared specification of 1.0 MPa max and -5 to 70 C applies to all bowl materials, so confirm nylon suits your environment. The automatic drain clears condensate without an operator, ideal for unattended lines, while the 5 um element suits instrument air but needs more frequent replacement than 40 um. The gauge is fitted with an MPa/psi scale for PT threads; G threads give bar/MPa and NPT gives psi/bar. Spares are orderable as GAFR500-20 and GAL500-20. If the line must stay oil-free, omit the lubricator and choose a plain GAFR filter-regulator instead. The 108 cc drain bowl holds about 2.3x the condensate of the GAFC300's 60 cc bowl, so this unit needs less frequent draining.
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 GAFC500N20ASW FAQ
This F.R.L. combination operates at 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). Temperature range is -5 to 70 C (must not freeze). The drain bowl holds 108 cc and the oil bowl 225 cc. Recommended lubricant is ISO VG 32. The unit weighs 1910 g and has a 3/4in port.
The W code specifies a 5 um filtering grade, which traps far finer particles than the standard 40 um element. This protects precision valves, flow controls and instrument air from contamination. The trade-off is that the finer element loads up faster and needs more frequent replacement, so factor that into maintenance planning for your 3/4in line.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAFC Air Service Unit GAFC500N20ASW
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.