Airtac GAC F.R.L. Unit GAC500N20AL
The AirTAC Airtac GAC F.R.L. Unit GAC500N20AL 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 GAC500N20AL
Delivering cleaned, regulated and lubricated air for larger pneumatic setups, this AirTAC GAC500N20AL F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. It features a 3/4in port, a 40 um element and a nylon bowl. The lower pressure type restricts the operating range to 0.15-0.4 MPa (20-58 psi), making it suitable for sensitive actuators. A circular gauge reading MPa/psi is fitted for the default PT thread.
Weighing 2460 g, the assembly requires a solid panel or frame mount rather than tubing support. The automatic drain clears condensate from the 108 cc bowl without an operator, while the 225 cc oil reservoir minimises lubricator refills. Air passes through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls.
Airtac GAC F.R.L. Unit GAC500N20AL Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500N20AL |
|---|---|
| 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 GAC500N20AL
| 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. |
| (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 GAC500N20AL Is Used
Textile Machinery
Feeds low-pressure looms and spinning frames where delicate fabric handling requires a regulated 0.15-0.4 MPa supply and continuous oil mist for high-speed moving parts.
Carton Erectors
Conditions air for large-format packaging lines, utilizing the 3/4in port and 108 cc automatic drain to handle sustained airflow without manual condensate intervention.
Palletizing Lines
Supplies lubricated air to heavy-duty chain drives and grippers on 3/4in pneumatic networks, relying on the 225 cc oil bowl to extend maintenance intervals.
Is the Airtac GAC F.R.L. Unit GAC500N20AL the Right Air-Prep Unit?
Choose this 3/4in unit for medium-to-large flow requirements, stepping down to the GAC400 if a 3/8in or 1/2in port fits your manifold, or up to the GAC600 for 1in headers. The nylon bowl offers a lightweight alternative to metal or PC, though buyers must confirm chemical compatibility for aggressive environments. Because this is an L type model capped at 0.4 MPa, select a standard S type if your machine might ever require more pressure. Note that oil mist is added downstream; choose a separate filter-regulator if the line must stay oil-free. Replacement spares share the same body-port suffix: GAF500-20, GAR500-20 and GAL500-20. Keep in mind that 0.4 MPa is 44% of the standard 0.9 MPa ceiling, so verify your actuators can operate within this lower limit.
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 GAC500N20AL FAQ
This unit 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). The temperature range is -5 to 70 C. It features a 108 cc drain bowl, a 225 cc oil bowl, weighs 2460 g, and uses ISO VG 32 lubricant.
The A in the code signifies an automatic drain that evacuates condensate without operator action, ideal for unattended lines. The L indicates a lower pressure type, restricting the regulation range to 0.15-0.4 MPa (20-58 psi) instead of the standard 0.9 MPa, which suits sensitive equipment but prevents high-force applications.
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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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