Airtac GAFC Air Service Unit GAFC500N20LNK
The AirTAC Airtac GAFC Air Service Unit GAFC500N20LNK 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 materialNylon
- 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 GAFC500N20LNK
This GAFC500 F.R.L. combination pairs a filter-regulator body with a lubricator on a single T-bracket, delivering filtered, pressure-set, oil-misted air to a 3/4in line. The lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi), with a 40 um element trapping solids and water droplets before the lubricator meters oil mist downstream.
The nylon bowl holds 108 cc of condensate, while the separate oil bowl holds 225 cc, and the complete unit weighs 1910 g. Since no gauge is supplied, the 1/4in gauge connection allows a later addition. The reverse-flow (reflux) valve is fitted, and the semi-auto drain dumps condensate on each pressure drop with a manual override for on-demand use.
Airtac GAFC Air Service Unit GAFC500N20LNK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC500N20LNK |
|---|---|
| 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 | Nylon |
| 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 GAFC500N20LNK
| 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". |
| (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 GAFC500N20LNK Is Used
Machine Tool Lubrication
Feed a 3/4in header on a CNC lathe, providing filtered air at 0.15-0.4 MPa to actuate clamps and lubricate slide ways.
Assembly Line Air Prep
Condition air for a multi-station assembly conveyor, where the 225 cc oil bowl supports extended run times between refills.
Packaging Equipment
Supply regulated, lubricated air to a case packer's pneumatic cylinders, with the 108 cc drain bowl capturing moisture from a wet compressor line.
Is the Airtac GAFC Air Service Unit GAFC500N20LNK the Right Air-Prep Unit?
Choose this GAFC500N20LNK when a 3/4in port and a 0.15-0.4 MPa (20-58 psi) regulated band fit your machine, and a nylon bowl suits your environment. The semi-auto drain clears condensate automatically on pressure drops, while the manual drain offers operator control. With no gauge fitted, plan to add one via the 1/4in connection if you need to read the set pressure. The 40 um element handles general shop air, and the reverse-flow valve is included as specified.
For oil-free downstream air, omit the lubricator and select a plain GAFR500-20 filter-regulator instead. Spare parts are orderable as 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 top of the regulated range.
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 GAFC500N20LNK FAQ
This F.R.L. combination operates at 0.15-0.4 MPa (20-58 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, uses ISO VG 32 lubricant, has a 108 cc drain bowl and 225 cc oil bowl, and weighs 1910 g.
The N in the code after the port specifies no gauge is supplied. The GAFC500 body has a 1/4in gauge connection, so you can add a gauge later if you need to monitor the set pressure.
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.
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