
The AirTAC Airtac GAC F.R.L. Unit GAC500C20SW 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 demanding pneumatic systems, this AirTAC F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 5 um element to trap fine particles before they reach precision valves, operating within a 0.15-0.9 MPa (20-130 psi) standard pressure range. A circular gauge reading MPa/psi is fitted for the default PT thread, allowing operators to monitor the set pressure directly.
Weighing 2460 g, this size class requires a robust panel or frame mount rather than tubing support. The metal bowl equips the unit with a 108 cc condensate capacity and a 225 cc oil reservoir, establishing the baseline for maintenance intervals. Air passes through the filter, 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 GAC500C20SW |
|---|---|
| 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 | 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.
| 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. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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 robotic welding arms and body panel stamping presses where a 3/4in air supply and 5 um filtration protect sensitive pneumatic grippers from debris.
Conditions air for continuous beverage capping heads, relying on the 225 cc oil bowl to sustain long lubrication intervals between operator interventions.
Supplies clean, regulated air to multi-axis machining centers, ensuring tool changer actuators receive stable pressure without regulator seat contamination.
Choose this 3/4in model when a machine demands fine 5 um filtration alongside a substantial 225 cc oil capacity, stepping up from the GAC400 which offers a 6000 L/min plotted flow envelope at 0.7 MPa inlet compared to the 7000 L/min envelope of this GAC500. The metal bowl suits rugged environments, while the semi-auto and manual drain pair provides flexible condensate management. If the downstream line must remain completely oil-free, omit the lubricator and select a separate filter-regulator instead. For maintenance, the assembly accepts GAF500-20, GAR500-20 and GAL500-20 replacement units. Because the maximum supply is 1.0 MPa and the standard type regulates to 0.9 MPa, there is only about 0.1 MPa of headroom above the top setting, so plan a supply near 1.0 MPa if you truly need 0.9 MPa out.
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 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 features a 5 um element, a metal bowl with a 108 cc drain capacity and a 225 cc oil capacity, weighs 2460 g, and functions between -5 to 70 C using ISO VG 32 lubricant.
The 5 um element captures far finer particles than the standard 40 um grade, making it ideal for precision valves and instrument air, though it requires more frequent element service. The metal bowl provides a durable housing option for rugged environments while retaining the standard 1.0 MPa pressure rating.
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.