
The AirTAC Airtac GAC F.R.L. Unit GAC500C20SNW 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 GAC500C20SNW assembly integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, placing it in a heavy-duty size class that requires a solid frame mount rather than tubing support. Air passes through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. Equipped with a 5 um element, it captures far finer particles than the 40 um standard, protecting precision valves at the cost of more frequent element service.
This specific configuration uses a robust metal bowl and operates within the standard 0.15-0.9 MPa (20-130 psi) pressure range. Because the N follows the port in the code, no pressure gauge is supplied; operators can add one later via the 1/4in gauge connection. The 108 cc condensate bowl and 225 cc oil sump dictate the maintenance rhythm, and the assembly arrives pre-plumbed to eliminate inter-unit tubing leaks during installation.
| Model | Airtac GAC F.R.L. Unit GAC500C20SNW |
|---|---|
| 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 | 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. |
| 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. |
| 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 machine headers where a 3/4in supply is required to sustain high actuator cycling rates without pressure drop.
Conditions air for high-speed case erectors and palletizers, relying on the 5 um element to protect sensitive gripper valves from fine particulates.
Supplies lubricated air to heavy pneumatic clutches and large-bore cylinders, utilizing the 225 cc oil bowl to extend maintenance intervals.
Choose this 3/4in model for high-flow circuits where the catalogue flow curve is plotted to 7000 L/min at 0.7 MPa inlet, offering a substantial step up from the GAC400's 6000 L/min envelope. The metal bowl suits harsher industrial environments, while the semi-auto and manual drain pair provides flexible condensate management. If the downstream line must remain completely oil-free, omit the lubricator and select a dedicated filter-regulator instead. Should a component fail, order the individual spares GAF500-20, GAR500-20 and GAL500-20 rather than replacing the entire unit. Stepping up from this body yields a notable capacity gain, as the GAC600 flow envelope reaches 12000 L/min, roughly 1.7x the 7000 L/min plotted for this GAC500.
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, features a 108 cc drain bowl and a 225 cc oil bowl, weighs 2460 g, and requires ISO VG 32 lubricant.
The N after the 3/4in port code indicates no gauge is supplied, meaning the set pressure cannot be read without adding one. The block features a 1/4in gauge connection, allowing operators to install a PT-threaded gauge with an MPa/psi scale to monitor downstream pressure.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.