Airtac GAC F.R.L. Unit GAC500C20LNK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20LNK is a genuine three-unit F.R.L. combination — a filter, a pressure regulator and a lubricator pre-assembled on one 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 materialMetal
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight2460 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 GAC F.R.L. Unit GAC500C20LNK
Delivering cleaned, regulated and lubricated air for heavy pneumatic lines, the AirTAC GAC500C20LNK is a three-unit F.R.L. combination pre-plumbed on a single L-shape bracket. It features a 3/4in port, a robust metal bowl, and a 40 um filter element. The lower-pressure type restricts the regulating range to 0.15-0.4 MPa (20-58 psi), making it suitable for sensitive actuators. A reverse-flow valve is included as part of this specific configuration.
Air passes through the filter, regulator and lubricator in that exact sequence, ensuring oil mist is added downstream so the regulator seat never fouls. Weighing 2460 g, this assembly requires a solid panel or frame mount rather than tubing support. The 108 cc condensate bowl and 225 cc oil sump dictate the maintenance frequency, while the semi-auto and manual drain pair clears accumulated water. No gauge is supplied, but a 1/4in connection is ready if you need to add one.
Airtac GAC F.R.L. Unit GAC500C20LNK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20LNK |
|---|---|
| Series | GAC500 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 | Metal |
| 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 | 2460 g |
Specifications follow the official AirTAC GAC catalogue (pages 216-217). Air must not freeze in the unit. No gauge is supplied with this model — the gauge connection on a GAC500 is 1/4" if you add one.
Model Code: Airtac GAC F.R.L. Unit GAC500C20LNK
| GAC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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: GAF500-20 filter, GAR500-20 regulator, GAL500-20 lubricator — all three share this body and port.
Size Class & Flow Envelope
- GAC2001/8"-1/4" · 1750 L/min
- GAC3001/4"-1/2" · 3000 L/min
- GAC4003/8"-1/2" · 6000 L/min
- GAC5003/4" · 7000 L/min
- GAC6003/4"-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 | GAC500 · 3/4" · curve to 7000 L/min |
|---|---|
| One size down | GAC400 |
| One size up | GAC600 (curve to 12000 L/min) |
| Build order | Filter → bracket → regulator → lubricator |
Where the Airtac GAC F.R.L. Unit GAC500C20LNK Is Used
Textile Manufacturing Lines
Feeds low-pressure air weaving and spinning equipment where delicate yarn tensioning cylinders operate below 0.4 MPa, utilizing the 3/4in port for main branch supply.
Carton Erector Stations
Conditions air for folding and sealing cylinders on high-speed packaging belts, relying on the 225 cc oil bowl to maintain consistent lubrication over long production runs.
Large Press Feeders
Supplies metered oil mist to heavy pneumatic grippers and feeders, with the metal bowl providing durability in a demanding metal-forming environment.
Is the Airtac GAC F.R.L. Unit GAC500C20LNK the Right Air-Prep Unit?
Choose this 3/4in body when a machine header demands a high flow capacity, as the catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet. The metal bowl suits harsher industrial environments, and the 40 um element handles standard particulate filtration. Because the lubricator introduces oil mist downstream, you must select a separate filter-regulator if the application requires strictly oil-free air. The three constituent parts are individually replaceable using the GAF500-20, GAR500-20 and GAL500-20 spares, preventing a full assembly swap if only the element clogs. Note that the 0.4 MPa upper limit is 44% of the standard 0.9 MPa ceiling, so verify your actuators never exceed this lower threshold.
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 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 2460 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 filter-regulator instead of an F.R.L. combination on that branch.
Airtac GAC F.R.L. Unit GAC500C20LNK FAQ
This lower-pressure unit regulates from 0.15-0.4 MPa (20-58 psi) and carries a max pressure of 1.0 MPa (145 psi) with a 1.5 MPa (215 psi) proof rating. It operates from -5 to 70 C, weighs 2460 g, uses a 40 um element, and features a 108 cc drain bowl alongside a 225 cc oil bowl. ISO VG 32 is the recommended lubricant.
No gauge is supplied, but the body features a 1/4in gauge connection for adding one later. The model does include a reverse-flow (reflux) valve, which the catalogue shows as a separate pneumatic symbol with details on its own page.
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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