Airtac GAC F.R.L. Unit GAC500C20ASN
The AirTAC Airtac GAC F.R.L. Unit GAC500C20ASN 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 GAC500C20ASN
Delivering cleaned, regulated and lubricated air for demanding pneumatic lines, the AirTAC GAC500C20ASN is a complete F.R.L. combination pairing a filter, regulator and lubricator on a single L-shape bracket. This 3/4in port model carries a standard pressure range of 0.15-0.9 MPa (20-130 psi) and a 40 um element. Weighing 2460 g, the substantial body requires a firm panel or frame mount rather than relying on downstream tubing for support. The metal bowl equips the unit for rugged industrial environments.
Air passes through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. Because the code includes an N after the port, no pressure gauge is supplied; operators can add one later via the 1/4in gauge connection. The automatic drain clears condensate without human intervention, a decisive advantage for unattended machinery. The 108 cc drain bowl and 225 cc oil bowl dictate the maintenance frequency, setting the service interval for this specific size class.
Airtac GAC F.R.L. Unit GAC500C20ASN Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20ASN |
|---|---|
| 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 GAC500C20ASN
| 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. |
| (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.
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 GAC500C20ASN Is Used
Automotive Assembly Lines
Feeds large multi-station machine headers where a 3/4in supply distributes conditioned air to several pneumatic actuators operating in sequence.
Palletizing Equipment
Supplies heavy-duty air grippers and large-bore cylinders that demand high flow rates and a steady pressure supply to move heavy loads reliably.
CNC Machining Centers
Prepares air for tool changers and clamping systems, utilizing the automatic drain to handle condensate generated during continuous cooling cycles.
Is the Airtac GAC F.R.L. Unit GAC500C20ASN the Right Air-Prep Unit?
Choose this 3/4in unit when a machine header requires a high flow capacity, stepping up from the GAC400 which has a flow curve plotted to 6000 L/min at 0.7 MPa inlet compared to the 7000 L/min envelope of this GAC500. The metal bowl offers durability where impacts might occur, while the automatic drain suits wet lines or hard-to-reach installations. If the downstream process cannot tolerate oil mist, omit the lubricator and select a separate filter-regulator instead. Since no gauge is included, the set pressure cannot be read without adding one to the 1/4in port. For maintenance, the assembly uses GAF500-20, GAR500-20 and GAL500-20 replacement units. Stepping from the GAC400 to this body yields a 7000/6000 flow envelope ratio of 1.17x, giving a modest sizing increase for heavier duty points.
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 GAC500C20ASN FAQ
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). The temperature range is -5 to 70 C. It features a 108 cc drain bowl and a 225 cc oil bowl, weighs 2460 g, and requires ISO VG 32 or equivalent lubricant.
The A in the ordering code specifies an automatic drain that expels condensate without an operator present, ideal for unattended or wet lines. The metal bowl provides a rugged housing for harsher industrial settings, and the 108 cc capacity determines how frequently the condensate is cleared.
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 GAC500C20ASN
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.