Airtac GAC F.R.L. Unit GAC50020ALN
The AirTAC Airtac GAC F.R.L. Unit GAC50020ALN 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 materialPC
- 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 GAC50020ALN
Delivering cleaned, regulated and lubricated air for heavy pneumatic lines, this AirTAC GAC50020ALN combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves machines needing substantial air volume, while the 40 um element captures solid particles before they reach downstream valves. Because the lubricator sits last in the sequence, oil mist is introduced downstream of the regulator seat, preventing fouling of internal components.
This specific configuration uses a lower pressure type rated for 0.15-0.4 MPa (20-58 psi), making it suitable for systems operating well below standard factory line pressures. The automatic drain clears condensate from the 108 cc bowl without operator intervention, a significant advantage for wet environments. No gauge is supplied, but a 1/4in connection is provided if you need to add instrumentation to monitor the set pressure.
Airtac GAC F.R.L. Unit GAC50020ALN Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020ALN |
|---|---|
| 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 | PC |
| 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 GAC50020ALN
| GAC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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 GAC50020ALN Is Used
Textile Manufacturing Lines
Feeds low-pressure air looms and spinning frames where delicate fibers require consistent, lubricated actuation below 0.4 MPa without risking fabric damage.
Pneumatic Sealing Stations
Conditions air for large-bore bagging and sealing cylinders that rely on a steady oil mist to maintain seal integrity over long production runs.
Heavy Package Sorting
Supplies 3/4in air lines for automated diverters and pushers on high-volume distribution conveyors, using the automatic drain to handle condensate in humid dispatch areas.
Is the Airtac GAC F.R.L. Unit GAC50020ALN the Right Air-Prep Unit?
Choose this 2460 g assembly when your application requires a large flow envelope but a low outlet pressure, as the L type tops out at 0.4 MPa. If the machine may ever need more, the L type is the wrong part and you should select a standard S type instead. The PC bowl is standard, but always confirm material compatibility for aggressive surroundings. Since no gauge is included, operators must add one to the 1/4in port to read the set pressure. If the downstream line must stay oil-free, omit the lubricator and choose a separate filter-regulator. For maintenance, the individual units are separately orderable as GAF500-20, GAR500-20 and GAL500-20. Stepping up to the GAC600 body roughly doubles the flow envelope to 12000 L/min at 0.7 MPa inlet, but choosing this lower-pressure type means the 0.4 MPa ceiling is just 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 GAC50020ALN FAQ
The lower pressure type 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 and a 225 cc oil bowl. The recommended lubricant is ISO VG 32, and the unit uses a 40 um filter element.
The N in the model code indicates no gauge is supplied from the factory. The unit features a 1/4in gauge connection, allowing you to install a specific pressure gauge that matches your operators' reading preferences or remote monitoring setup.
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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