
The AirTAC Airtac GAC F.R.L. Unit GAC500N20ASN 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).
Delivering cleaned, regulated and lubricated air for demanding pneumatic lines, this AirTAC unit combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves heavy-duty circuits, while the standard pressure range operates between 0.15-0.9 MPa (20-130 psi). A 40 um element captures solid particles, and the automatic drain clears condensate without an operator attending the machine.
The nylon bowl equips this assembly for specific environmental considerations, and because no gauge is supplied, the set pressure cannot be read without adding one to the 1/4in gauge connection. Oil mist is introduced downstream of the regulator, ensuring the internal seat stays clean. If a downstream process requires air without oil, a dedicated filter-regulator should be chosen instead of this lubricated setup.
| Model | Airtac GAC F.R.L. Unit GAC500N20ASN |
|---|---|
| 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 | Nylon |
| 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. |
|---|---|
| N | Bowl material: Nylon. 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. |
| (blank) | Filtering grade 40 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 framing actuators where a 3/4in supply main distributes air to multiple downstream stations.
Conditions air for high-thrust linear cylinders driving heavy pallet conveyors, ensuring consistent force through stable pressure regulation.
Supplies the large-volume air demands of corrugators and folder-gluers, utilizing the automatic drain to handle moisture in long runs.
This 2460 g assembly requires a solid panel or frame mount rather than tubing support, placing it in a heavy size class. The automatic drain pairs well with the 108 cc condensate bowl to reduce maintenance interventions on wet lines. The three constituent units are separately orderable as GAF500-20, GAR500-20 and GAL500-20, meaning a damaged bowl does not require replacing the whole assembly. Stepping down to the GAC400 reduces the plotted flow envelope from 7000 L/min to 6000 L/min at 0.7 MPa inlet, whereas stepping up to the GAC600 provides a 12000 L/min envelope. 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 standard type unit regulates from 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 in temperatures from -5 to 70 C, weighs 2460 g, features a 108 cc drain bowl and a 225 cc oil bowl, and requires ISO VG 32 lubricant.
The N in the model code indicates no gauge is supplied. To monitor the outlet pressure, an operator must install a separate circular gauge into the 1/4in gauge connection on the regulator body, matching the PT thread scale to read MPa or psi.
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.