Airtac GAC F.R.L. Unit GAC500C20L
The AirTAC Airtac GAC F.R.L. Unit GAC500C20L 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 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 GAC500C20L
Delivering cleaned, regulated and lubricated air for larger pneumatic setups, this GAC500C20L F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, placing it in a heavy-duty size class that requires a firm panel or frame mount rather than tubing support. Air passes through the 40 um filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls.
This specific unit features a robust metal bowl and operates on the lower pressure type, governing output strictly between 0.15-0.4 MPa (20-58 psi). A circular gauge is fitted, reading MPa/psi for the default PT thread, allowing operators to monitor the set pressure directly. The 108 cc condensate bowl and 225 cc oil reservoir dictate the maintenance rhythm, establishing how frequently an attendant must drain water and refill ISO VG 32 lubricant.
Airtac GAC F.R.L. Unit GAC500C20L Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20L |
|---|---|
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAC F.R.L. Unit GAC500C20L
| 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. |
| (blank) | Filtering grade 40 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 GAC500C20L Is Used
Textile Manufacturing Lines
Feeds low-pressure air to large weaving looms and spinning frames where delicate fibers require gentle actuation forces and consistent lubrication to protect high-speed moving parts.
Carton Erecting Machines
Conditions air for pneumatic folding arms and sealing heads in automated packaging equipment, ensuring steady 3/4in airflow while the lubricator prevents premature cylinder wear.
Bulk Material Handling
Supplies regulated air to heavy-duty diverters and sorting gates on 3/4in distribution lines, relying on the 108 cc drain bowl to capture condensate from high-volume air consumption.
Is the Airtac GAC F.R.L. Unit GAC500C20L the Right Air-Prep Unit?
Choose this model when a 3/4in line requires low-pressure regulation up to 0.4 MPa, making it unsuitable if the machinery might ever demand higher operating force. The metal bowl offers a durable housing option for harsher industrial environments, sharing the same 1.0 MPa maximum pressure rating as the PC and nylon alternatives. It ships with both a semi-auto drain, which dumps condensate during every pressure drop, and a manual drain for on-demand emptying. If the downstream process requires strictly dry, oil-free air, the lubricator must be omitted entirely and a separate filter-regulator chosen instead.
Replacement parts follow the exact body and port configuration: order GAF500-20 for the filter, GAR500-20 for the regulator, and GAL500-20 for the lubricator. The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, which is roughly 1.2x the 6000 L/min envelope of the neighbouring GAC400, providing a clear sizing step. Because the lower-pressure type tops out at 0.4 MPa, it offers just 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 GAC500C20L FAQ
This unit regulates pressure between 0.15-0.4 MPa (20-58 psi) and has a maximum pressure of 1.0 MPa (145 psi) with a proof pressure of 1.5 MPa (215 psi). It operates in temperatures from -5 to 70 C, weighs 2460 g, features a 108 cc drain bowl and a 225 cc oil bowl, and requires ISO VG 32 lubricant.
The L in the model code designates the lower pressure type, restricting the output to 0.15-0.4 MPa (20-58 psi) for applications requiring gentle actuation. The C indicates a metal bowl, chosen for environmental durability, while the fitted circular gauge reads in MPa/psi to match the standard PT threads.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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