Airtac GAC F.R.L. Unit GAC50020LNK
The AirTAC Airtac GAC F.R.L. Unit GAC50020LNK 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
- 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 GAC50020LNK
Delivering cleaned, regulated and lubricated air for demanding pneumatics, this AirTAC GAC50020LNK combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves lines requiring a lower pressure range of 0.15-0.4 MPa (20-58 psi), while the 40 um element captures solid grain before it reaches downstream valves. A reverse-flow (reflux) valve is fitted, which the catalogue depicts as a separate pneumatic symbol with details on its own page.
Air passes through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. Weighing 2460 g, this body size requires a solid panel or frame mount rather than tubing support. The unit ships without a gauge, though a 1/4in gauge connection is ready if you need to add instrumentation later. The 108 cc condensate bowl and 225 cc oil bowl dictate the maintenance rhythm, and the semi-auto plus manual drain pair lets operators clear liquid on demand.
Airtac GAC F.R.L. Unit GAC50020LNK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020LNK |
|---|---|
| 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 | 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 GAC50020LNK
| 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". |
| (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 GAC50020LNK Is Used
Assembly Line Headers
Feeds multiple pneumatic stations on a factory trunk line where a 3/4in port maintains adequate volume for sequential actuator firing.
Carton Forming Machines
Supplies oil-misted air to moving grippers and folding arms in packaging equipment, operating safely within the 0.15-0.4 MPa lower pressure band.
Textile Guiding Systems
Conditions air for low-tension fabric guide cylinders, adding the precise lubrication needed for high-speed continuous motion.
Is the Airtac GAC F.R.L. Unit GAC50020LNK the Right Air-Prep Unit?
Choose this 3/4in body when a machine header needs lower-pressure conditioning, stepping up from the GAC400 which offers a plotted flow envelope of 6000 L/min at 0.7 MPa inlet compared to this body's 7000 L/min curve. The PC bowl suits standard -5 to 70 C environments, while the semi-auto and manual drain pair handles condensate without an automated pilot line. Because the N after the port means no gauge is supplied, you must add one to the 1/4in connection to read the set pressure. If the downstream line must stay oil-free, omit the lubricator and choose a filter-regulator instead. Spares follow the same 500-20 suffix: GAF500-20, GAR500-20 and GAL500-20. Note that the 0.4 MPa upper limit is 44% of the Standard type's 0.9 MPa ceiling, so verify your actuators never require more pressure before specifying this L type.
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 GAC50020LNK FAQ
This lower-pressure type 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). It functions from -5 to 70 C, weighs 2460 g, and features a 108 cc drain bowl alongside a 225 cc oil bowl. The recommended lubricant is ISO VG 32 or equivalent.
The L designates the lower 0.15-0.4 MPa pressure range, N means no gauge is supplied though a 1/4in connection exists for adding one, and K indicates a reverse-flow (reflux) valve is fitted, shown as a separate pneumatic symbol in the catalogue.
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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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