Airtac GAC F.R.L. Unit GAC500N20ALK
The AirTAC Airtac GAC F.R.L. Unit GAC500N20ALK 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 materialNylon
- 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 GAC500N20ALK
Delivering cleaned, regulated and lubricated air for larger pneumatic setups, this AirTAC GAC500N20ALK combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves high-demand circuits, while the lower-pressure type restricts regulation to 0.15-0.4 MPa (20-58 psi). A 40 um element captures particulates before the air reaches downstream equipment.
The nylon bowl holds 108 cc of condensate and 225 cc of oil, requiring fewer interventions than smaller bodies. An automatic drain clears liquid without an operator, and a circular gauge reading MPa/psi is fitted for the default PT thread. This specific configuration also includes a reverse-flow (reflux) valve, which the catalogue shows as a separate pneumatic symbol with details on its own page.
Airtac GAC F.R.L. Unit GAC500N20ALK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500N20ALK |
|---|---|
| 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 | Nylon |
| 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 GAC500N20ALK
| GAC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. 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. |
| 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 GAC500N20ALK Is Used
Textile Machinery Headers
Feeds low-pressure air distribution lines for weaving looms that rely on a steady oil mist to protect high-speed moving components.
Large Packaging Lines
Conditions air for multi-station sealing and conveying equipment where the 108 cc condensate bowl minimizes service stops.
Pneumatic Sorting Systems
Supplies regulated 0.4 MPa air to diverter actuators on parcel handling conveyors, ensuring soft actuation without damaging goods.
Is the Airtac GAC F.R.L. Unit GAC500N20ALK the Right Air-Prep Unit?
Choose this 2460 g unit when a machine header needs a 3/4in connection and a strict low-pressure ceiling. The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, offering a significant step up from the 3000 L/min envelope of the GAC300. If the application requires oil-free air downstream, the lubricator must be omitted entirely and a separate filter-regulator chosen instead. Replacement parts are available as GAF500-20, GAR500-20 and GAL500-20. Because the L type tops out at 0.4 MPa, it provides only 44% of the standard 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 GAC500N20ALK FAQ
This lower-pressure unit 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, and features a 108 cc drain bowl alongside a 225 cc oil bowl. The recommended lubricant is ISO VG 32.
The K indicates that a reverse-flow (reflux) valve is attached. The catalogue illustrates this as a distinct pneumatic symbol, and specific functional details should be confirmed from its dedicated datasheet 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.
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