
The AirTAC Airtac GAC F.R.L. Unit GAC500N20ASW 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 setups, this AirTAC F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves high-demand circuits, while the 5 um element captures fine particulates before they reach sensitive valves. A nylon bowl encloses the 108 cc condensate sump and 225 cc oil reservoir.
Because the lubricator sits last in the sequence, oil mist is introduced downstream of the regulator seat, preventing fouling of the pressure-control mechanism. The automatic drain clears accumulated water without an operator, a vital feature for wet lines or unattended machinery. A circular gauge is fitted, reading MPa/psi for the default PT thread, allowing immediate visual confirmation of the 0.15-0.9 MPa (20-130 psi) operating band.
| Model | Airtac GAC F.R.L. Unit GAC500N20ASW |
|---|---|
| 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 | 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. 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. |
|---|---|
| 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). |
| (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 bore cylinders and multi-station headers on a production line where a steady 3/4in air supply and fine 5 um filtration protect robotic welding actuators.
Conditions air for heavy-duty end-effectors and grippers that require continuous lubrication to handle high-throughput pallet building without premature wear.
Supplies clean, regulated air to precision tool changers and air-blast nozzles, ensuring the 5 um screen stops grit from clogging fine spindle coolant jets.
Choose this 2460 g assembly for substantial air flows; its catalogue flow curve is plotted to 7000 L/min at 0.7 MPa inlet, compared to the 6000 L/min envelope of the GAC400. If the downstream line must remain completely free of oil, omit the lubricator and select a dedicated filter-regulator instead. The nylon bowl suits standard -5 to 70 C environments, but confirm chemical compatibility for aggressive surroundings. Should the element clog or a bowl crack, order the individual GAF500-20, GAR500-20 and GAL500-20 spares rather than replacing the whole unit. Stepping from the GAC400 to this GAC500 increases the condensate sump from 100 cc to 108 cc, an 1.08x capacity gain.
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 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 handles temperatures from -5 to 70 C, uses a 108 cc drain bowl and a 225 cc oil bowl, weighs 2460 g, and requires ISO VG 32 lubricant.
The automatic drain expels condensate from the 108 cc sump without manual intervention, ideal for unattended or high-humidity environments. Meanwhile, the 5 um element provides finer filtration than the standard 40 um grade, trapping microscopic particles to protect precision valves, though it requires more frequent element replacement.
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.