Airtac GAC F.R.L. Unit GAC500C20ASK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20ASK 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
- Drainautomatic
- 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 GAC500C20ASK
Supplying a 3/4in port, the AirTAC GAC500C20ASK is a complete F.R.L. combination that pre-assembles a filter, regulator and lubricator on a single L-shape bracket with quick mounting clamps. Weighing 2460 g, this robust unit conditions air for demanding lines, operating at a standard pressure range of 0.15-0.9 MPa (20-130 psi) with a 40 um element.
The internal build order routes air through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. This specific assembly features a durable metal bowl and an automatic drain that clears condensate without an operator, holding 108 cc of water and 225 cc of oil. A circular gauge reading MPa/psi is fitted for the default PT thread, and the reverse-flow (reflux) valve is included, shown in the catalogue as a separate pneumatic symbol.
Airtac GAC F.R.L. Unit GAC500C20ASK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20ASK |
|---|---|
| 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 | Automatic 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 GAC500C20ASK
| 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". |
| A | Drain: Automatic 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 GAC500C20ASK Is Used
Automotive Assembly Lines
Feeds large robotic welding and stamping cells where a 3/4in supply header distributes conditioned, lubricated air to multiple downstream actuators.
High-Speed Palletizers
Prepares air for heavy-duty pneumatic grippers and pushers, relying on the 225 cc oil bowl to sustain long operating cycles between top-ups.
CNC Machine Tooling
Supplies clean, regulated air at 0.15-0.9 MPa to pneumatic clamps and tool changers, protecting precision valves with a 40 um filter element.
Is the Airtac GAC F.R.L. Unit GAC500C20ASK the Right Air-Prep Unit?
Choose this 3/4in body when a machine header demands a high flow capacity, as the catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, compared to the 6000 L/min envelope of the neighbouring GAC400. The metal bowl suits harsher industrial environments where PC or nylon might not be permitted, and the automatic drain eliminates manual intervention on wet lines. If the downstream line must stay oil-free, omit the lubricator and choose a filter-regulator instead. Replacement spares share the same 500-20 suffix: GAF500-20, GAR500-20 and GAL500-20. Stepping up from the GAC400 to this GAC500 increases the condensate bowl capacity from 100 cc to 108 cc, a marginal 1.08x gain in service interval scale.
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 GAC500C20ASK FAQ
This model 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, and the recommended lubricant is ISO VG 32. It features a 108 cc drain bowl, a 225 cc oil bowl, and weighs 2460 g.
The K indicates that a reverse-flow (reflux) valve is fitted to this unit. The catalogue shows this component as a separate pneumatic symbol with details on its own page, representing an ordering difference for specific application requirements.
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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