
The AirTAC Airtac GAC F.R.L. Unit GAC500C20ASWK 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 5 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
Delivering cleaned, regulated and lubricated air for heavy pneumatic duties, the AirTAC GAC500C20ASWK is a complete F.R.L. combination pairing a filter, regulator and lubricator on a single L-shape bracket. This 3/4in ported unit uses a 5 um element to capture fine particulates, operates within the 0.15-0.9 MPa (20-130 psi) standard pressure range, and features a robust metal bowl. A circular gauge reading MPa/psi is fitted for the default PT threads, and a reverse-flow (reflux) valve is included, shown as a separate pneumatic symbol in the catalogue.
Weighing 2460 g, this body class demands a solid panel or frame mount rather than tubing support. The automatic drain clears condensate from the 108 cc bowl without an operator, while the 225 cc oil reservoir sets the lubricator service interval. Air passes through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls.
| Model | Airtac GAC F.R.L. Unit GAC500C20ASWK |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 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.
| 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. |
| W | Filtering grade 5 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.
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 |
Feeds large multi-station headers powering heavy-duty pneumatic presses and impact wrenches with a steady, lubricated 0.9 MPa supply.
Conditions air for high-flow grippers and end-of-arm tooling, where the 5 um element protects precision valves from fine particulate ingress.
Supplies clean, regulated air to tool changers and air-blast systems, utilizing the automatic drain to handle wet compressor outputs unattended.
Choose this 3/4in model when a machine header requires fine 5 um filtration alongside standard pressure regulation. The metal bowl suits harsher industrial environments compared to standard PC or nylon options. Because the lubricator introduces oil mist downstream, select a separate filter-regulator if the application requires strictly oil-free air. Should the element clog or a bowl get damaged, the assembly splits into individually orderable spares: 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 neighboring GAC400 body.
Quick checklist
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.
This standard type unit regulates between 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 operates from -5 to 70 C, weighs 2460 g, and features a 108 cc drain bowl with a 225 cc oil bowl. The recommended lubricant is ISO VG 32.
The K indicates that a reverse-flow (reflux) valve is fitted to this specific F.R.L. combination. The official catalogue presents this component as a distinct pneumatic symbol with its own dedicated page for reference.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.