Airtac GAC F.R.L. Unit GAC500C20ALNWK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20ALNWK 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 5 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 grade5 µm
- Bowl materialMetal
- 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 GAC500C20ALNWK
Delivering cleaned, regulated and lubricated air for demanding pneumatics, this AirTAC GAC500C20ALNWK combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves heavy-duty circuits, while the 5 um element captures fine particulates before they reach precision valves. 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.
This specific configuration uses a robust metal bowl paired with an automatic drain, clearing condensate without an operator during each cycle. Operating at the lower pressure range of 0.15-0.4 MPa (20-58 psi), it includes a reverse-flow (reflux) valve that the catalogue shows as a separate pneumatic symbol. No gauge is supplied, but the body features a 1/4in gauge connection if you need to add one later to monitor the set pressure.
Airtac GAC F.R.L. Unit GAC500C20ALNWK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20ALNWK |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Metal |
| 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 GAC500C20ALNWK
| 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". |
| 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. |
| W | Filtering grade 5 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 GAC500C20ALNWK Is Used
Automotive Assembly Lines
Feeds large robotic welding arms and body framing equipment where a 3/4in port handles high volume and the 5 um element protects sensitive gripper actuators.
Palletizing Stations
Conditions air for heavy-load stretch wrappers and pallet handlers, relying on the 108 cc automatic drain to expel condensate during continuous unattended shifts.
Woodworking Machinery
Supplies regulated, lubricated air to multi-spindle boring machines and edge banders, utilizing the metal bowl to withstand rugged shop floor environments.
Is the Airtac GAC F.R.L. Unit GAC500C20ALNWK the Right Air-Prep Unit?
Choose this 2460 g assembly for substantial air preparation tasks where the system must stay below 0.4 MPa (20-58 psi). The 108 cc drain bowl and 225 cc oil bowl reduce maintenance frequency compared to smaller bodies. If your downstream line requires absolutely oil-free air, you must omit the lubricator and select a separate filter-regulator instead. The three internal units are independently replaceable using GAF500-20, GAR500-20 and GAL500-20 spares, all sharing the exact same body and port suffix. The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, which is roughly 1.17x the 6000 L/min envelope of the GAC400. Because the lower-pressure type tops out at 0.4 MPa, it provides only 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 GAC500C20ALNWK FAQ
This lower-pressure type unit regulates from 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 operates in temperatures from -5 to 70 C, uses a 5 um element, and features a 108 cc drain bowl alongside a 225 cc oil bowl. The assembly weighs 2460 g and requires ISO VG 32 or equivalent lubricant.
The N in the ordering code means no gauge is supplied from the factory, though a 1/4in connection is machined into the body so you can install one to read the set pressure. Additionally, the K code indicates a reverse-flow (reflux) valve is fitted, which the catalogue illustrates as a distinct 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.
Related AirTAC Air-Preparation Units
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