Airtac GAC F.R.L. Unit GAC50020ALW
The AirTAC Airtac GAC F.R.L. Unit GAC50020ALW 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 5 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 grade5 µm
- Bowl materialPC
- 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 GAC50020ALW
Delivering cleaned, regulated and lubricated air for demanding pneumatic lines, this AirTAC GAC50020ALW F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4" 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. The 5 um element traps far finer particles than the standard 40 um grade, suiting precision valves, while the automatic drain clears condensate from the 108 cc bowl without an operator.
Air passes through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. As a lower-pressure type, the unit regulates between 0.15-0.4 MPa (20-58 psi). A circular gauge is fitted, reading MPa/psi for the default PT thread, allowing operators to monitor the set pressure directly. The 225 cc oil bowl minimises refill interventions, and the three constituent units are separately orderable as GAF500-20, GAR500-20 and GAL500-20.
Airtac GAC F.R.L. Unit GAC50020ALW Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020ALW |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAC F.R.L. Unit GAC50020ALW
| 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). |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 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 GAC50020ALW Is Used
Textile Manufacturing Lines
Feeds low-pressure air to large looms and spinning frames where a 5 um element protects delicate air-jet nozzles from clogging.
Automated Palletizers
Conditions air for heavy-duty 3/4" ported cylinders lifting pallets, ensuring steady 0.4 MPa operation with automatic condensate removal.
Laboratory Gas Panels
Supplies precisely filtered, low-pressure air to analytical instruments, relying on the 5 um grade to prevent particulate contamination.
Is the Airtac GAC F.R.L. Unit GAC50020ALW the Right Air-Prep Unit?
Choose this model for 3/4" lines requiring highly filtered, low-pressure air with minimal maintenance. The 5 um element provides superior protection for sensitive instrumentation compared to the standard 40 um option, though it requires more frequent element service. The automatic drain is decisive for unattended or wet lines, actively dumping condensate from the 108 cc bowl on demand. If the machine requires oil-free air downstream, the lubricator must be omitted entirely and a separate filter-regulator chosen instead.
The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, offering a substantial sizing envelope compared to the 6000 L/min of the GAC400. Because this is a lower-pressure type, 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 GAC50020ALW 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 5 um element traps finer particles than the standard 40 um filter, making it ideal for precision valves, though it requires more frequent service. The lower-pressure type limits regulation to 0.4 MPa, so if the machine may ever need more pressure, this is the wrong part.
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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