
The AirTAC Airtac GAC F.R.L. Unit GAC50020ASW 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, the AirTAC GAC50020ASW is a complete three-unit F.R.L. combination rather than a single filter regulator. The 3/4in port serves a 2460 g assembly that integrates a filter, regulator and lubricator on one L-shape bracket with quick clamps. This build sequence adds oil mist downstream of the regulator seat, preventing fouling, while the 5 um element traps far finer particles than the 40 um standard for precision pneumatics.
Operating at 0.15-0.9 MPa (20-130 psi), this standard type pairs a PC bowl with an automatic drain that clears condensate without an operator. The 108 cc drain bowl and 225 cc oil bowl dictate the service interval, and a circular gauge is fitted, reading MPa/psi for the default PT thread. If the downstream line must stay completely oil-free, omit the lubricator and choose a dedicated filter-regulator instead.
| Model | Airtac GAC F.R.L. Unit GAC50020ASW |
|---|---|
| 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 | PC |
| 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. |
|---|---|
| (blank) | Bowl material: PC. 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 multi-station headers on a production line, using the 5 um element to protect robotic welding cylinders from fine particulate.
Conditions air for heavy-duty palletizing machines where the automatic drain handles high condensate loads without halting the 3/4in supply.
Supplies stable pressure to large-bore actuator lifts on package conveyors, relying on the 225 cc oil bowl for extended lubrication intervals.
Choose this 3/4in body for heavy flow duties, noting the catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet. Stepping down to the GAC400 drops that envelope to 6000 L/min, whereas the GAC600 reaches 12000 L/min. The 5 um element suits sensitive valves but needs more frequent service than 40 um. The automatic drain is decisive for unattended or wet lines, and the fitted gauge lets operators verify the set pressure directly. Spares follow the body-port suffix exactly: GAF500-20, GAR500-20 and GAL500-20. Stepping from the GAC400 to this GAC500 yields roughly a 1.17x increase in the plotted flow envelope.
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.
The standard type operates at 0.15-0.9 MPa (20-130 psi) with a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It has a 3/4in port, a 5 um element, a 108 cc drain bowl, a 225 cc oil bowl, and weighs 2460 g. The temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32.
The A in the code signifies an automatic drain that expels condensate without manual intervention, ideal for wet or unattended lines. The W denotes a 5 um element, which catches far finer particles than the 40 um standard 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.