Airtac GAC F.R.L. Unit GAC500C20ASNK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20ASNK 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 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeNot fitted
- Weight2460 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAC F.R.L. Unit GAC500C20ASNK
Supplying a 3/4in port, the AirTAC GAC500C20ASNK is a complete F.R.L. combination that pre-assembles a filter, regulator and lubricator on a single L-shape bracket. Air passes through the filter first, then the regulator sets the 0.15-0.9 MPa (20-130 psi) working pressure, and finally the lubricator introduces oil mist downstream so the internal regulator seat stays clean. This metal bowl unit carries a 40 um element and weighs 2460 g, requiring a firm panel or frame mount rather than tubing support.
Because the code contains an A, this variant uses an automatic drain to clear condensate from the 108 cc bowl without an operator. The N after the port means no gauge is supplied, though a 1/8in gauge port is available if you need to add instrumentation later. A reverse-flow (reflux) valve is fitted, shown as a separate pneumatic symbol in the catalogue, and the 225 cc oil bowl dictates the lubricator refill cycle.
Airtac GAC F.R.L. Unit GAC500C20ASNK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20ASNK |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Metal |
| 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. No gauge is supplied with this model — the gauge connection on a GAC500 is 1/4" if you add one.
Model Code: Airtac GAC F.R.L. Unit GAC500C20ASNK
| 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". |
| A | Drain: Automatic 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. |
| (blank) | Filtering grade 40 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.
Size Class & Flow Envelope
- GAC2001/8"-1/4" · 1750 L/min
- GAC3001/4"-1/2" · 3000 L/min
- GAC4003/8"-1/2" · 6000 L/min
- GAC5003/4" · 7000 L/min
- GAC6003/4"-1" · 12000 L/min
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 |
Where the Airtac GAC F.R.L. Unit GAC500C20ASNK Is Used
Automotive Assembly Lines
Feeds large robotic welding and handling cells where a 3/4in supply header demands high flow capacity and consistent 0.9 MPa pressure.
Palletizer Stations
Conditions air for heavy-duty pneumatic grippers and lift cylinders, relying on the 225 cc oil bowl to maintain steady lubrication over long shifts.
Metal Stamping Presses
Prepares unprocessed plant air for large clutch and brake valves, using the 40 um element to protect precision internal passages from grit.
Is the Airtac GAC F.R.L. Unit GAC500C20ASNK the Right Air-Prep Unit?
This 3/4in body sits in a heavy-duty size class, with the catalogue flow curve plotted to 7000 L/min at 0.7 MPa inlet, making it suitable for substantial machine headers compared to the 3000 L/min envelope of the GAC300. The metal bowl offers robust physical construction for industrial settings, while the automatic drain handles wet lines unattended. If the downstream process requires strictly oil-free air, you must omit the lubricator and choose a separate filter-regulator instead.
Spares are ordered individually as GAF500-20, GAR500-20 and GAL500-20. Stepping up from the GAC400 to this body increases the condensate capacity from 100 cc to 108 cc, but stepping all the way to the GAC600 yields a 205 cc drain bowl, which is roughly 1.9x the capacity of this unit.
Quick checklist
- ✓ Body size for your peak flow (3/4" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Thread & gauge scale (PT / G / NPT)
Installation & Maintenance Notes
- check Install with the airflow arrow: filter first, lubricator last.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Fill the oil bowl with ISO VG 32 or equivalent only.
- check Drain condensate before the 108 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 2460 g unit on its bracket, not on the tubing.
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.
Airtac GAC F.R.L. Unit GAC500C20ASNK FAQ
This standard type unit regulates from 0.15-0.9 MPa (20-130 psi) and has a max pressure of 1.0 MPa (145 psi) with a 1.5 MPa (215 psi) proof pressure. It operates from -5 to 70 C, uses a 40 um element, weighs 2460 g, holds 108 cc of condensate and 225 cc of oil, and requires ISO VG 32 lubricant.
The A indicates an automatic drain that empties the 108 cc bowl without manual intervention, the S is the standard 0.15-0.9 MPa pressure range, the N means no gauge is supplied (though a 1/4in connection exists for adding one), and the K denotes a reverse-flow valve shown as a separate symbol in the catalogue.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAC F.R.L. Unit GAC500C20ASNK
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.