Airtac GAC F.R.L. Unit GAC500N20ALN
The AirTAC Airtac GAC F.R.L. Unit GAC500N20ALN 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 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 GAC500N20ALN
Delivering cleaned, regulated and lubricated air for larger pneumatic demands, this AirTAC GAC500N20ALN F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves high-flow circuits, while the lower-pressure type restricts the regulating band to 0.15-0.4 MPa (20-58 psi). A 40 um element captures particulate matter before the air reaches downstream equipment.
Because the lubricator sits last in the processing sequence, oil mist is introduced downstream of the regulator seat, preventing fouling of the internal pressure spring. The unit carries a nylon bowl and an automatic drain that expels condensate from the 108 cc sump without operator input. Weighing 2460 g, the assembly requires rigid panel or frame mounting rather than tubing support.
Airtac GAC F.R.L. Unit GAC500N20ALN Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500N20ALN |
|---|---|
| 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. 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 GAC500N20ALN
| 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). |
| 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 GAC500N20ALN Is Used
Textile Manufacturing Lines
Feeds low-pressure air to large weaving looms where delicate yarn handling requires a strict 0.4 MPa ceiling and continuous lubrication.
Corrugated Box Folding
Drives heavy folding actuators on a packaging conveyor, utilizing the 3/4in port to supply adequate volume without pressure drops.
Woodworking Sanding Stations
Conditions air for wide-belt sanding machines, relying on the automatic drain to clear moisture in high-humidity woodshops unattended.
Is the Airtac GAC F.R.L. Unit GAC500N20ALN the Right Air-Prep Unit?
Choose this 3/4in unit when a machine header needs low-pressure regulation capped at 0.4 MPa, paired with the convenience of an automatic drain. The nylon bowl suits standard plant environments, while the absence of a gauge means the set pressure cannot be read unless a separate 1/4in gauge is fitted to the port. If the application requires absolutely oil-free air downstream, omit the lubricator and select a dedicated filter-regulator instead. For maintenance, the assembly accepts individual GAF500-20, GAR500-20 and GAL500-20 replacement units. Stepping down to a GAC400 drops the plotted flow envelope from 7000 L/min to 6000 L/min at 0.7 MPa inlet, whereas the lower-pressure ceiling of this L type 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 GAC500N20ALN FAQ
This lower-pressure unit regulates from 0.15-0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates between -5 to 70 C, features a 108 cc drain bowl and a 225 cc oil bowl, uses ISO VG 32 lubricant, and weighs 2460 g.
The N in the model code denotes that no circular gauge is supplied, meaning operators cannot visually verify the downstream set pressure without adding one. The body features a 1/4in gauge connection, allowing a separate pressure indicator to be installed if visual monitoring is required for the application.
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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