
The AirTAC Airtac GAC F.R.L. Unit GAC500C20LNW 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 - 0.4 MPa (20 - 58 psi).
Delivering cleaned, regulated and lubricated air for heavy pneumatic lines, this GAC500C20LNW assembly integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, requiring a firm panel mount rather than tubing support. Outfitted with a 5 um element, it captures fine particulates for sensitive valve operations, while the metal bowl suits rugged plant environments.
Air routes through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat stays clean. Operating at the lower pressure range of 0.15-0.4 MPa (20-58 psi), it is built for low-force applications. The semi-auto and manual drain pair clears the 108 cc condensate bowl, and no gauge is supplied, leaving a 1/4in connection for adding one.
| Model | Airtac GAC F.R.L. Unit GAC500C20LNW |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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. 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". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 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 low-pressure air to large weaving actuators where the 5 um element protects delicate tensioning valves from lint and fine dust.
Supplies a steady 0.4 MPa to folding cylinders, using the 225 cc oil bowl to maintain consistent lubrication over long production runs.
Conditions air for low-force press clamps, relying on the robust metal bowl to withstand occasional tooling impacts on the factory floor.
Choose this 3/4in body for substantial flow needs, noting the catalogue flow curve is plotted to 7000 L/min at 0.7 MPa inlet, compared to the 12000 L/min envelope of the GAC600. The metal bowl provides durability, while the 5 um element requires more frequent service than the standard 40 um grade to protect precision instruments. Because the lubricator introduces oil downstream, select a separate filter-regulator if the process demands an oil-free environment. Spares follow the 500-20 suffix: GAF500-20, GAR500-20 and GAL500-20. The lower pressure type tops out at 0.4 MPa, which is 44% of the standard 0.9 MPa ceiling, so verify your machinery never requires higher force.
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 0.15-0.4 MPa (20-58 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. It features a 108 cc drain bowl, a 225 cc oil bowl, a 5 um element, and weighs 2460 g. The recommended lubricant is ISO VG 32.
The N in the ordering code indicates no gauge is supplied, so the set pressure cannot be read without adding one. The body features a 1/4in gauge connection for installing a separate gauge later. The thread is PT, which corresponds to an MPa/psi scale if a gauge is mounted.
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.