Airtac GAC F.R.L. Unit GAC500C20ALN
The AirTAC Airtac GAC F.R.L. Unit GAC500C20ALN 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 gaugeNot fitted
- 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 GAC500C20ALN
Delivering cleaned, regulated and lubricated air for demanding pneumatic setups, this AirTAC GAC500C20ALN unit 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 solid panel or frame mount rather than tubing support. Air passes through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls.
Configured for low-pressure applications, the regulator operates from 0.15-0.4 MPa (20-58 psi) with a standard 40 um element. The metal bowl equips this assembly for rugged environments, and the automatic drain clears condensate without an operator, which is decisive for unattended or wet lines. Since no gauge is supplied, the set pressure cannot be read directly without adding one to the 1/4in gauge connection.
Airtac GAC F.R.L. Unit GAC500C20ALN Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20ALN |
|---|---|
| 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. No gauge is supplied with this model — the gauge connection on a GAC500 is 1/4" if you add one.
Model Code: Airtac GAC F.R.L. Unit GAC500C20ALN
| 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). |
| N | No pressure gauge; 1/4" gauge connection. |
| (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 GAC500C20ALN Is Used
Textile Machinery
Feeds low-pressure looms and spinning frames where precise 0.15-0.4 MPa actuation protects delicate fibers from being snapped by excessive force.
Carton Erectors
Conditions air for continuous packaging lines, using the 108 cc automatic drain bowl to handle condensate during prolonged unattended shift operations.
Pneumatic Conveying
Regulates airflow for bulk material transfer gates, relying on the metal bowl's durability in harsh industrial environments with heavy vibration.
Is the Airtac GAC F.R.L. Unit GAC500C20ALN the Right Air-Prep Unit?
Choose this model for 3/4in ported lines requiring a strict 0.15-0.4 MPa (20-58 psi) output ceiling; if the machine may ever need more pressure, the L type is the wrong part. The 40 um element suits general plant air, while the metal bowl handles rougher surroundings than PC or nylon alternatives. Because oil mist is added downstream, choose a separate filter-regulator instead if the line must remain strictly oil-free. The three units are separately orderable as GAF500-20, GAR500-20 and GAL500-20, so a clogged element does not mean replacing the whole assembly. Stepping down to the GAC400 body drops the plotted flow envelope from 7000 L/min to 6000 L/min at 0.7 MPa inlet, while the 0.4 MPa ceiling is 44% of the standard 0.9 MPa maximum.
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 GAC500C20ALN FAQ
This lower-pressure type operates at 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 features a 3/4in port, a 40 um element, a 108 cc drain bowl, a 225 cc oil bowl, and weighs 2460 g. The temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32.
The N in the model code indicates no gauge is supplied. To read the set pressure, an operator must add a separate gauge to the 1/4in gauge connection on the body, matching the MPa/psi scale used for the default PT thread.
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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