Airtac GAC F.R.L. Unit GAC500C20LW
The AirTAC Airtac GAC F.R.L. Unit GAC500C20LW 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
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- 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 GAC500C20LW
Delivering cleaned, lubricated and precisely metered air, this AirTAC unit 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 sensitive valves. A circular gauge is fitted, reading MPa/psi for the default PT thread.
Air passes through the filter first, then the regulator, with oil mist injected last so the internal seat stays clean. The metal bowl equips this assembly for rugged industrial settings. Operating pressure spans 0.15-0.4 MPa (20-58 psi), making it ideal for low-force actuator networks.
Airtac GAC F.R.L. Unit GAC500C20LW Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20LW |
|---|---|
| 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 | 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAC F.R.L. Unit GAC500C20LW
| 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). |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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 GAC500C20LW Is Used
Textile Manufacturing Lines
Feeds low-pressure air looms and spinning frames where delicate yarn handling demands a stable 0.4 MPa ceiling and fine 5 um particulate control.
Carton Erecting Machines
Supplies metered oil mist to the folding arms and vacuum grippers of high-speed packaging equipment, preventing seal dehydration during continuous shifts.
Large Press Feeders
Conditions the 3/4in main air supply for pneumatic feeders on metal stamping presses, utilizing the robust metal bowl to withstand shop-floor impacts.
Is the Airtac GAC F.R.L. Unit GAC500C20LW the Right Air-Prep Unit?
Choose this 2460 g assembly for substantial air flows where a metal bowl is preferred. The 5 um element provides finer filtration than the standard 40 um grade, trapping microscopic debris at the cost of more frequent element replacement. It carries a semi-auto and manual drain pair, requiring operator interaction to expel the 108 cc condensate. If the machine requires absolutely oil-free exhaust, select a filter-regulator instead, as the lubricator here intentionally introduces oil downstream. Replacement internals share the 500-20 suffix: order GAF500-20, GAR500-20 and GAL500-20.
Stepping down, the flow envelope is plotted to 7000 L/min at 0.7 MPa inlet, exactly matching the GAC400's curve, but the 225 cc oil bowl holds roughly 22% more fluid than the GAC400's 185 cc. Because the L 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 GAC500C20LW 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). The temperature range is -5 to 70 C. It features a 108 cc drain bowl, a 225 cc oil bowl, a 5 um element, and weighs 2460 g. The recommended lubricant is ISO VG 32.
The 5 um element traps far finer particles than the standard 40 um grade, suiting precision valve circuits, though it requires more frequent service. The metal bowl is selected for rugged environments where chemical exposure or physical impact might compromise standard plastic bowls.
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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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