Airtac GAC F.R.L. Unit GAC500C20S
The AirTAC Airtac GAC F.R.L. Unit GAC500C20S 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 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 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 GAC500C20S
Delivering cleaned, regulated and lubricated air for demanding pneumatic setups, this GAC500C20S combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, placing it firmly in a heavy-duty size class that requires a solid panel or frame mount rather than tubing support. Air passes through the 40 um element first, then the regulator, before oil mist is introduced downstream so the regulator seat never gets fouled.
This specific unit features a robust metal bowl and operates within the standard 0.15-0.9 MPa (20-130 psi) pressure range. 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, requiring periodic attention to keep the downstream system running smoothly.
Airtac GAC F.R.L. Unit GAC500C20S Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20S |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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 GAC500C20S
| 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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 GAC500C20S Is Used
Automotive Assembly Lines
Feeds large pneumatic presses and robotic arms requiring a steady 3/4in air supply with added lubrication for high-cycle moving parts.
Heavy Palletizing Cells
Conditions air for heavy-duty grippers and large-bore cylinders that lift pallets, relying on the 225 cc oil bowl for extended operation.
Bottling Plant Headers
Prepares main plant air before distribution to multiple filling stations, using the 40 um element to protect sensitive flow controls.
Is the Airtac GAC F.R.L. Unit GAC500C20S the Right Air-Prep Unit?
Choose this 3/4in body when a machine demands substantial air volume, stepping up from the GAC400 which offers a 6000 L/min plotted flow envelope at 0.7 MPa inlet. The metal bowl provides a durable housing option within the shared -5 to 70 C temperature limit, while the semi-auto and manual drain pair gives operators two ways to clear the 108 cc condensate reservoir. If the downstream line must remain completely oil-free, omit the lubricator and choose a filter-regulator instead. For future maintenance, the assembly accepts its own AirTAC GAF500-20, GAR500-20 and GAL500-20 replacement units. Because the maximum supply is 1.0 MPa and the standard type regulates to 0.9 MPa, there is only about 0.1 MPa of headroom above the top setting, so plan a supply near 1.0 MPa if you truly need 0.9 MPa out.
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 GAC500C20S FAQ
This standard type unit operates at 0.15-0.9 MPa (20-130 psi) with a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It functions in temperatures from -5 to 70 C, weighs 2460 g, features a 108 cc drain bowl and a 225 cc oil bowl, and uses ISO VG 32 lubricant.
The metal bowl offers a rugged housing choice while sharing the same 1.0 MPa maximum pressure as other bowl materials. This unit ships with both a semi-auto drain, which expels condensate during each pressure drop, and a manual drain for on-demand emptying by an operator.
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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