Airtac GAC F.R.L. Unit GAC500C20AL
The AirTAC Airtac GAC F.R.L. Unit GAC500C20AL 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
- Drainautomatic
- 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 GAC500C20AL
Delivering cleaned, regulated and lubricated air for heavy pneumatic lines, this AirTAC unit combines 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 size class that requires a firm panel or frame mount rather than tubing support. The metal bowl equips this assembly for rugged industrial settings, while the automatic drain clears condensate without an operator.
Air passes through the 40 um filter before reaching the regulator, ensuring the internal seat stays clean, and oil mist is added last downstream of the pressure control. As a lower-pressure type, the regulation range spans 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.
Airtac GAC F.R.L. Unit GAC500C20AL Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20AL |
|---|---|
| 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 | 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAC F.R.L. Unit GAC500C20AL
| 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). |
| (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 GAC500C20AL Is Used
Textile Manufacturing Lines
Feeds low-pressure air to large weaving looms where delicate yarn handling requires stable 0.4 MPa control and continuous oil mist for high-speed moving grippers.
Bottling Plant Conveyors
Conditions air for multi-station filling headers, using the 108 cc condensate bowl and automatic drain to handle moisture from continuous high-volume cycling.
Woodworking Sanding Stations
Supplies regulated air to wide-belt sanding machines, protecting pneumatic tensioning cylinders with a durable metal bowl in an abrasive dust environment.
Is the Airtac GAC F.R.L. Unit GAC500C20AL the Right Air-Prep Unit?
Choose this assembly for 3/4in lines requiring low-pressure regulation up to 0.4 MPa, noting that if the machine may ever need more, the L type is the wrong part. The metal bowl offers durability, and the automatic drain suits unattended stations. The flow envelope is plotted to 7000 L/min at 0.7 MPa inlet, whereas the smaller GAC400 tops out at 6000 L/min under the same conditions. If the downstream line must stay oil-free, choose a filter-regulator instead, as this unit adds oil mist. Spares are available as GAF500-20, GAR500-20 and GAL500-20. The 0.4 MPa ceiling is 44% of the Standard type's 0.9 MPa maximum, quantifying exactly what is sacrificed when choosing this lower-pressure variant.
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 GAC500C20AL FAQ
This lower-pressure F.R.L. combination regulates from 0.15-0.4 MPa (20-58 psi) with a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, weighs 2460 g, features a 108 cc drain bowl, a 225 cc oil bowl, and recommends ISO VG 32 lubricant.
The automatic drain clears accumulated condensate from the 108 cc metal bowl without requiring manual intervention, making it ideal for unattended or wet compressed air lines where an operator is not always present to open a valve.
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.
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