Airtac GAC F.R.L. Unit GAC50020SK
The AirTAC Airtac GAC F.R.L. Unit GAC50020SK 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 GAC50020SK
Delivering cleaned, regulated and lubricated air for demanding pneumatic lines, this GAC50020SK assembly integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves heavy-duty circuits, while the standard pressure range operates between 0.15-0.9 MPa (20-130 psi). A 40 um element captures solid particles, and a circular gauge reading MPa/psi is fitted for the default PT thread.
Weighing 2460 g, the unit requires a firm panel or frame mount rather than tubing support. The 108 cc condensate bowl and 225 cc oil reservoir dictate the maintenance rhythm, and the fitted reverse-flow (reflux) valve appears as a distinct pneumatic symbol in the catalogue. Air passes through the filter first, then the regulator, with oil mist injected last so the regulator seat stays clean.
Airtac GAC F.R.L. Unit GAC50020SK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020SK |
|---|---|
| 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 GAC50020SK
| 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. |
| K | Reverse-flow (reflux) valve attached. |
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 GAC50020SK Is Used
Automotive Assembly Lines
Feeds large multi-station machine headers where a steady 3/4in air supply powers heavy pneumatic presses and robotic tooling.
Palletizing Equipment
Conditions air for high-flow stretch wrappers and pallet handlers that rely on continuous lubrication to prevent cylinder wear.
Material Handling Systems
Supports extensive conveyor networks by removing moisture and solid grain before the air reaches high-speed sorting actuators.
Is the Airtac GAC F.R.L. Unit GAC50020SK the Right Air-Prep Unit?
This model uses a PC bowl and ships with both semi-auto and manual drains, meaning condensate dumps on pressure drops but can also be emptied on demand. The standard S type regulates up to 0.9 MPa, unlike the L type which caps at 0.4 MPa. If your downstream line must remain completely free of oil, you should choose a dedicated filter-regulator instead, as this lubricator intentionally adds oil mist downstream.
Replacement spares share the exact same body and port suffix: GAF500-20, GAR500-20 and GAL500-20. The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, which is roughly 1.2x the 6000 L/min envelope of the GAC400. Because the maximum supply is 1.0 MPa and the standard type tops out at 0.9 MPa, you only have about 0.1 MPa of regulation headroom, so plan a supply near 1.0 MPa if you truly need 0.9 MPa out.
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 GAC50020SK FAQ
This unit operates at 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). The temperature range is -5 to 70 C. It features a 108 cc drain bowl, a 225 cc oil bowl, a 40 um element, and weighs 2460 g. The recommended lubricant is ISO VG 32.
The K signifies that a reverse-flow (reflux) valve is attached to this assembly. The catalogue shows this as a separate pneumatic symbol on its own page, representing an ordering difference for this specific F.R.L. combination.
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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