Airtac GAC F.R.L. Unit GAC500C20SK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20SK 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 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 GAC500C20SK
Delivering cleaned, regulated and lubricated air for demanding pneumatic lines, this GAC500C20SK assembly integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves high-demand circuits, while the standard pressure type provides a 0.15-0.9 MPa (20-130 psi) operating band. A 40 um element captures particulate matter before air reaches the regulator, ensuring the internal seat stays clean because oil mist is introduced last in the sequence.
Weighing 2460 g, this substantial unit requires mounting to a rigid frame rather than relying on downstream tubing for support. The metal bowl equips the assembly for harsher industrial settings, and a circular gauge reading MPa/psi is fitted to the PT thread so operators can verify the set pressure directly. A reverse-flow (reflux) valve is included, which the catalogue illustrates as a separate pneumatic symbol with specifics on its own page.
Airtac GAC F.R.L. Unit GAC500C20SK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20SK |
|---|---|
| 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 | 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 GAC500C20SK
| 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. |
| 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 GAC500C20SK Is Used
Automotive Assembly Line
Feeds main air headers on a production floor, supplying multiple pneumatic presses and robotic arms with consistently regulated, lubricated air.
Palletizing Stations
Conditions air for heavy-duty bagging and pallet wrapping machinery where large-bore cylinders demand high flow rates to maintain cycle speed.
CNC Machine Tooling
Prepares supply air for multi-axis machining centers, protecting sensitive pneumatic chucks and tool changers from particulate ingress.
Is the Airtac GAC F.R.L. Unit GAC500C20SK the Right Air-Prep Unit?
Choose this 3/4in body when a machine header demands a high flow capacity, noting the catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet. If a smaller actuator circuit is being fed, stepping down to the GAC400 makes sense as its plotted envelope reaches 6000 L/min at the same inlet pressure. This model uses a semi-auto and manual drain pair alongside a 108 cc condensate bowl and a 225 cc oil reservoir, dictating the maintenance rhythm. Should the downstream line require absolutely oil-free air, omit the lubricator and select a standalone filter-regulator instead. For element or bowl replacements, order the GAF500-20, GAR500-20 and GAL500-20 service parts. Stepping up to the GAC600 yields a 205 cc drain bowl, which is roughly 1.9x the condensate capacity of this unit's 108 cc bowl.
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 GAC500C20SK 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). It functions in -5 to 70 C temperatures, uses a 40 um element, weighs 2460 g, holds 108 cc in the drain bowl and 225 cc in the oil bowl, and requires ISO VG 32 lubricant.
The K indicates that a reverse-flow (reflux) valve is attached to the assembly. The official catalogue shows this component as a distinct pneumatic symbol with full operational details provided on its own dedicated page.
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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