
The AirTAC Airtac GAC F.R.L. Unit GAC50020ASWK 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 pneumatics, this AirTAC GAC50020ASWK F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 5 um element to trap fine particles before they reach precision valves. A standard pressure range of 0.15-0.9 MPa (20-130 psi) is maintained by the regulator, while a fitted circular gauge reads in MPa/psi for the default PT thread.
Weighing 2460 g, this unit requires a solid frame mount rather than tubing support. The automatic drain actively clears condensate from the 108 cc bowl without operator intervention. Because oil mist is introduced downstream of the regulator, the regulating seat stays clean. This specific configuration includes a reverse-flow (reflux) valve, shown as a separate pneumatic symbol in the catalogue.
| Model | Airtac GAC F.R.L. Unit GAC50020ASWK |
|---|---|
| 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. |
| K | Reverse-flow (reflux) valve attached. |
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 multiple pneumatic actuators and spot-welding guns on a main production header, relying on the 108 cc automatic drain for continuous wet-air separation.
Conditions high-volume air for heavy-duty bagging and palletizing equipment where the 5 um element protects sensitive flow controls from grit.
Supplies regulated, oil-misted air to precision tool-changing cylinders, ensuring smooth actuation under steady 0.15-0.9 MPa pressure.
Choose this 3/4in body for medium-to-heavy air preparation, noting its flow curve is plotted to 7000 L/min at 0.7 MPa inlet. The PC bowl suits standard -5 to 70 C environments, while the 5 um element provides finer filtration than the 40 um standard, demanding more frequent element changes. If your downstream line must remain oil-free, omit the lubricator and select a standalone filter-regulator instead. Spares follow the 500-20 suffix: GAF500-20, GAR500-20 and GAL500-20. Stepping down, the GAC400 offers a 6000 L/min plotted envelope, making this GAC500 about 17% larger in flow capacity. The 1.5 MPa (215 psi) proof pressure provides a 1.5x burst-test margin over the 1.0 MPa maximum, but this is strictly a safety rating, not permission to operate 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 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 from -5 to 70 C, features a 108 cc drain bowl and a 225 cc oil bowl, uses ISO VG 32 lubricant, and weighs 2460 g.
The K indicates that a reverse-flow (reflux) valve is attached to the unit. The official catalogue depicts this as a distinct pneumatic symbol with further details provided on its own dedicated page.
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.