Airtac GAC F.R.L. Unit GAC50020S
The AirTAC Airtac GAC F.R.L. Unit GAC50020S 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 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 GAC50020S
Delivering cleaned, regulated and lubricated air for demanding pneumatic systems, this GAC50020S combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves heavy-duty applications, while the standard pressure type operates from 0.15-0.9 MPa (20-130 psi) with a 40 um element. A circular gauge is fitted, reading MPa/psi for the default PT thread.
Weighing 2460 g, this assembly requires a solid panel or frame mount rather than tubing support. The 108 cc condensate bowl and 225 cc oil sump dictate the maintenance rhythm, and the semi-auto drain dumps water on every pressure drop alongside a manual override. If the downstream line must remain oil-free, omit the lubricator and choose a separate filter-regulator instead.
Airtac GAC F.R.L. Unit GAC50020S Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020S |
|---|---|
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAC F.R.L. Unit GAC50020S
| 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). |
| (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 GAC50020S Is Used
Automotive Assembly Lines
Feeds large bore cylinders and multi-station headers on a vehicle manufacturing line where a steady 3/4in air supply is essential for high-force clamping.
Palletizing Robots
Conditions air for heavy-duty end-effectors and grippers handling full pallet loads, ensuring consistent pressure and oil mist for continuous actuator movement.
Metal Stamping Presses
Supplies the main air preparation feed for large pneumatic presses and safety circuits, handling high flow demands without excessive pressure drop.
Is the Airtac GAC F.R.L. Unit GAC50020S the Right Air-Prep Unit?
This 3/4in unit sits in a high-capacity size class, with its catalogue flow curve plotted to 7000 L/min at 0.7 MPa inlet, compared to the 12000 L/min envelope of the GAC600. The PC bowl is standard, with metal and nylon alternatives available for different environments. The semi-auto and manual drain pair requires an operator presence, unlike the automatic drain option. The 40 um element suits general plant air, whereas the 5 um alternative traps finer particles for precision valves. Replacement spares follow the body-port suffix exactly: GAF500-20, GAR500-20 and GAL500-20. Because the 1.0 MPa maximum supply is only 0.1 MPa above the 0.9 MPa standard setting, plan a supply near 1.0 MPa if you truly need maximum outlet pressure.
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 GAC50020S FAQ
The standard pressure type regulates from 0.15-0.9 MPa (20-130 psi). Maximum pressure is 1.0 MPa (145 psi) with a 1.5 MPa (215 psi) proof pressure. Operating temperature is -5 to 70 C. The drain bowl holds 108 cc and the oil bowl holds 225 cc. It weighs 2460 g and uses ISO VG 32 lubricant.
This model is fitted with both a semi-auto and a manual drain. The semi-auto mechanism expels condensate automatically each time the system pressure drops, while the manual option allows on-demand draining by an operator during regular checks.
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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