Airtac GAC F.R.L. Unit GAC50020ALNK
The AirTAC Airtac GAC F.R.L. Unit GAC50020ALNK 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 materialPC
- Drainautomatic
- 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 GAC50020ALNK
Delivering cleaned, regulated and lubricated air for demanding pneumatics, this AirTAC F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves heavy-duty circuits, while the lower pressure type restricts the operating band to 0.15-0.4 MPa (20-58 psi). It uses a 40 um element and a PC bowl.
Air passes through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. An automatic drain clears condensate from the 108 cc bowl without operator intervention. This specific configuration includes a reverse-flow (reflux) valve, which the catalogue depicts as a separate pneumatic symbol with details on its own page.
Airtac GAC F.R.L. Unit GAC50020ALNK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020ALNK |
|---|---|
| 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 | PC |
| 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 | 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 GAC50020ALNK
| GAC500 | 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". |
| A | Drain: Automatic 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 GAC50020ALNK Is Used
Textile Machinery
Feeds low-pressure air to large weaving looms where delicate yarn handling requires a 0.15-0.4 MPa ceiling and steady oil mist for moving ratchets.
Packaging Lines
Conditions air for heavy 3/4in pneumatic sealers and carton erectors, using the automatic drain to handle condensate during continuous wet-shift operation.
Large Assembly Jigs
Supplies multi-station fixtures needing consistent low-force clamping, relying on the 40 um element to protect precision grippers from particulate.
Is the Airtac GAC F.R.L. Unit GAC50020ALNK the Right Air-Prep Unit?
Choose this 2460 g unit for larger actuators requiring low-pressure regulation. The automatic drain suits unattended stations, and because no gauge is supplied, the set pressure cannot be read without adding one to the 1/4in gauge connection. If the downstream line must stay oil-free, omit the lubricator and choose a filter-regulator instead. Spares are GAF500-20, GAR500-20 and GAL500-20. The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, whereas the GAC600 reaches 12000 L/min. The L type tops out at 0.4 MPa, which is 44% of the Standard type's 0.9 MPa 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 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 GAC50020ALNK FAQ
This unit operates at 0.15-0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C. It features a 108 cc drain bowl, a 225 cc oil bowl, uses ISO VG 32 lubricant, and weighs 2460 g.
The N in the code means no gauge is supplied, so you must add one to the 1/4in connection to read the setpoint. The K indicates a reverse-flow (reflux) valve is fitted, shown as a separate pneumatic symbol in the catalogue.
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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