Airtac GAC F.R.L. Unit GAC50020SN
The AirTAC Airtac GAC F.R.L. Unit GAC50020SN 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 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialPC
- Drainsemi-auto + manual
- 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 GAC50020SN
Delivering cleaned, regulated and lubricated air for heavy pneumatic lines, the AirTAC GAC50020SN is a complete F.R.L. combination pre-assembled on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, placing this unit in a heavy-duty size class that requires a solid panel or frame mount rather than tubing support. Air passes through the filter, regulator and lubricator in sequence, meaning the oil mist is introduced downstream of the regulator seat to prevent fouling.
This standard type operates at 0.15-0.9 MPa (20-130 psi) with a 40 um element, while the PC bowl relies on a semi-auto and manual drain pair. Because the N follows the port, no gauge is supplied; the 1/4in gauge connection allows a separate indicator to be added later. The 108 cc condensate bowl and 225 cc oil reservoir dictate the maintenance rhythm, and the individual GAF500-20, GAR500-20 and GAL500-20 components can be ordered separately if a service item fails.
Airtac GAC F.R.L. Unit GAC50020SN Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020SN |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | PC |
| Drain type | Semi-auto drain + manual 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 GAC50020SN
| 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". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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 GAC50020SN Is Used
Automotive Assembly Line
Supplies a stable, lubricated air supply to multiple pneumatic presses and robotic arms along a vehicle manufacturing conveyor.
Palletizing Stations
Conditions high-flow air for heavy-duty bag palletizers and stretch wrappers that rely on continuous actuator cycling.
CNC Machining Centers
Prepares drive air for large CNC tool changers and air-blast clearing systems, protecting precision valves from particulate ingress.
Is the Airtac GAC F.R.L. Unit GAC50020SN the Right Air-Prep Unit?
Choose this 3/4in body when feeding a multi-station machine header that demands substantial air volume, as the catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet. Stepping down to the GAC400 drops that plotted envelope to 6000 L/min, whereas moving up to the GAC600 extends it to 12000 L/min. The semi-auto drain dumps condensate on every pressure drop, while the manual option allows on-demand emptying of the 108 cc bowl. Since the lubricator adds oil mist downstream, select a separate filter-regulator if the application requires strictly oil-free air. The PT thread dictates an MPa/psi gauge scale, but operators will need to add their own gauge to the 1/4in port to read the set pressure. The 1.5 MPa (215 psi) proof pressure provides a 1.5x burst-test margin over the 1.0 MPa maximum, which is a safety rating rather than permission to run above the 1.0 MPa ceiling.
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 GAC50020SN FAQ
The standard pressure range is 0.15-0.9 MPa (20-130 psi), with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, uses a 40 um element, and weighs 2460 g. The drain bowl holds 108 cc and the oil bowl holds 225 cc, requiring an ISO VG 32 or equivalent lubricant.
The N after the port code indicates no gauge is supplied from the factory. The unit features a 1/4in gauge connection, allowing you to install a separate PT-threaded gauge with an MPa/psi scale to monitor your downstream settings.
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.
Related AirTAC Air-Preparation Units
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