Airtac GAFC Air Service Unit GAFC50020LNK
The AirTAC Airtac GAFC Air Service Unit GAFC50020LNK 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 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade40 µm
- Bowl materialPC
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- 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 GAFC50020LNK
This GAFC50020LNK is an F.R.L. combination where the filter and regulator share one body, and a lubricator is added on a T bracket with quick clamps. It handles a 3/4in port, regulates from 0.15 to 0.4 MPa (20-58 psi), and uses a 40 um element. The 108 cc condensate bowl and 225 cc oil bowl give a solid service interval for a machine header.
The lower-pressure range suits applications that never need more than 0.4 MPa, and the 1.0 MPa max supply leaves about 0.6 MPa above the top of the range. No gauge is fitted, so the 1/4in gauge connection is ready for a field-installed unit. The reverse-flow valve is fitted, and the PC bowl is a build choice for standard shop air.
Airtac GAFC Air Service Unit GAFC50020LNK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC50020LNK |
|---|---|
| Series | GAFC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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. No gauge is supplied with this model — the gauge connection on a GAFC500 is 1/4" if you add one.
Model Code: Airtac GAFC Air Service Unit GAFC50020LNK
| 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. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| N | No pressure gauge; 1/4" gauge connection. |
| (blank) | Filtering grade 40 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 GAFC50020LNK Is Used
Machine Tool Header
Feed a 3/4in header on a CNC lathe or milling center, where the lower pressure range protects sensitive tooling and the 225 cc oil bowl keeps the way lubrication consistent.
Assembly Line Lubrication
Supply a multi-station assembly conveyor with a controlled oil mist, using the 108 cc condensate bowl to handle moisture from a long unregulated drop.
Packaging Equipment
Run a case packer or strapping machine at 0.4 MPa max, where the lower range prevents over-pressurizing delicate pneumatic cylinders and the manual drain suits a supervised line.
Is the Airtac GAFC Air Service Unit GAFC50020LNK the Right Air-Prep Unit?
Choose the GAFC500 for a 3/4in line feeding multiple actuators or a small machine header. The 108 cc drain bowl and 225 cc oil bowl mean fewer refill stops than the GAFC400's 100 cc and 185 cc. The semi-auto drain dumps on pressure drop, while the manual drain works on demand. The L type tops out at 0.4 MPa, so if the machine may ever need more, select the S type instead. No gauge is supplied, but the 1/4in connection accepts one. The 40 um element is standard, and the PT thread reads MPa/psi if a gauge is added. The reflux valve is fitted. Spares are GAFR500-20 and GAL500-20. With a 1.0 MPa max supply, you have about 0.6 MPa of headroom above the 0.4 MPa regulated ceiling.
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 GAFC50020LNK FAQ
The working pressure range is 0.15-0.4 MPa (20-58 psi). Max pressure is 1.0 MPa (145 psi) and proof pressure is 1.5 MPa (215 psi). Temperature range is -5 to 70 C. The drain bowl holds 108 cc and the oil bowl holds 225 cc. Recommended lubricant is ISO VG 32. The unit weighs 1910 g.
The N code means no gauge is supplied. The GAFC500 body has a 1/4in gauge connection, so you can add a field-installed gauge to read the set pressure. The PT thread uses an MPa/psi scale if you fit one.
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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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