Airtac GAC F.R.L. Unit GAC500C20LK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20LK 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 materialMetal
- 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 GAC500C20LK
Delivering cleaned, regulated and lubricated air for demanding pneumatics, this AirTAC unit combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves high-demand circuits, while the lower-pressure type restricts regulation to 0.15-0.4 MPa (20-58 psi). A 40 um element captures particulates before air reaches the regulator seat.
The metal bowl equips this assembly for rugged environments, and a circular gauge reading MPa/psi is fitted for the default PT thread. Because the reverse-flow (reflux) valve is fitted, the catalogue shows it as a separate pneumatic symbol with details on its own page. Weighing 2460 g, the assembly requires a solid panel or frame mount rather than tubing support.
Airtac GAC F.R.L. Unit GAC500C20LK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20LK |
|---|---|
| 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 | Metal |
| 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 GAC500C20LK
| GAC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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. |
| 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. |
| (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 GAC500C20LK Is Used
Textile Machinery Headers
Feeds low-pressure air looms where delicate weaving mechanisms require consistent 0.4 MPa supply and oil mist for continuous high-speed operation.
Light-Force Clamping Stations
Conditions air for multi-station packaging lines that use soft-grip actuators, preventing over-pressurization while keeping moving seals lubricated.
Pneumatic Sorting Diverters
Supplies clean, regulated air to high-throughput logistics conveyors where 3/4in piping distributes flow to numerous pop-up sorting cylinders.
Is the Airtac GAC F.R.L. Unit GAC500C20LK the Right Air-Prep Unit?
Choose this 3/4in body when a machine needs lower-pressure actuation, as the L type tops out at 0.4 MPa. If the application ever requires more, the L type is the wrong part. The metal bowl suits harsher industrial settings compared to standard PC, and the semi-auto plus manual drain pair dumps condensate on pressure drop or on demand. Since oil mist is added downstream of the regulator, choose a filter-regulator instead if the line must stay oil-free. Should the 40 um element clog, order spares GAF500-20, GAR500-20 and GAL500-20. Stepping up to the GAC600 roughly doubles the flow envelope to 12000 L/min at 0.7 MPa inlet versus this body's 7000 L/min plotted curve, but the lower-pressure ceiling remains 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 GAC500C20LK FAQ
This lower-pressure type regulates from 0.15-0.4 MPa (20-58 psi). It has a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). Operating temperature is -5 to 70 C. The drain bowl holds 108 cc and the oil bowl holds 225 cc, with a total weight of 2460 g. Use ISO VG 32 lubricant.
The K indicates a reverse-flow (reflux) valve is fitted. The catalogue displays this as a distinct pneumatic symbol on its own page. This model also features a metal bowl, a semi-auto and manual drain, and a standard 40 um element.
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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