
The AirTAC Airtac GAC F.R.L. Unit GAC500C20ASNW 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, pressure-set and oil-misted air for demanding pneumatics, this GAC500C20ASNW assembly integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, placing it in a heavy-duty size class that requires a proper panel or frame mount rather than tubing support. Air passes through the filter first, then the regulator, with oil mist added last so the internal seat never fouls. This standard type operates at 0.15-0.9 MPa (20-130 psi) and uses a 5 um element to trap fine particles for precision valves.
Because the N follows the port in the code, no gauge is supplied; operators must add one to the 1/4in gauge connection to read the set pressure. The metal bowl equips the unit for rugged environments, while the automatic drain clears condensate without an attendant. Condensate gathers in the 108 cc bowl and oil in the 225 cc reservoir. If the downstream line must stay oil-free, omit the lubricator and choose a filter-regulator instead.
| Model | Airtac GAC F.R.L. Unit GAC500C20ASNW |
|---|---|
| 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. No gauge is supplied with this model — the gauge connection on a GAC500 is 1/4" if you add one.
| 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). |
| N | No pressure gauge; 1/4" gauge connection. |
| 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 a multi-station machine header where the 3/4in port and 5 um element protect robotic actuators from fine particulate ingress.
Conditions high-volume air for heavy bagging equipment, relying on the automatic drain to expel condensate during continuous shifts.
Supplies clean, regulated and lubricated air to tool changers and clamps, benefiting from the 108 cc drain bowl in wet supply lines.
Choose this metal-bowl unit for 3/4in lines needing unattended condensate management via the automatic drain and fine 5 um filtration. The PT thread sets a MPa/psi gauge scale for the 1/4in connection port. Stepping down, the GAC400 plots a flow curve to 6000 L/min at 0.7 MPa inlet, whereas this GAC500 extends to 7000 L/min, offering extra capacity for larger headers. Spares share the 500-20 suffix: order GAF500-20, GAR500-20 and GAL500-20 individually. The 1.5 MPa proof pressure provides a 1.5x burst-test margin over the 1.0 MPa maximum, but this is not permission to run above 1.0 MPa.
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 regulates 0.15-0.9 MPa (20-130 psi) with a max pressure of 1.0 MPa (145 psi) and a 1.5 MPa (215 psi) proof pressure. 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 N after the 3/4in port code indicates no gauge is supplied. To monitor the 0.15-0.9 MPa setting, you must install a circular gauge into the 1/4in connection, matching the MPa/psi scale of the default PT thread.
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.