Airtac GAC F.R.L. Unit GAC500C20LNWK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20LNWK 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 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialMetal
- Drainsemi-auto + manual
- 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 GAC500C20LNWK
Delivering cleaned, regulated and lubricated air for larger pneumatic setups, this GAC500 unit combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, meaning the assembly requires a solid panel or frame mount rather than relying on downstream tubing for support. Air flows through the 5 um element first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. This lower-pressure type restricts the operating band to 0.15-0.4 MPa (20-58 psi), making it unsuitable for any machine that might later require higher actuation force.
A metal bowl equips this assembly for rugged environments, while the semi-auto and manual drain pair handles condensate from the 108 cc bowl. Because the code carries an N after the port, no pressure gauge is supplied; the 1/4in gauge connection remains available if you need to add instrumentation later. The reverse-flow (reflux) valve is fitted, shown as a separate pneumatic symbol in the catalogue. Replacement parts follow the GAF500-20, GAR500-20 and GAL500-20 designations, allowing targeted service instead of full assembly replacement.
Airtac GAC F.R.L. Unit GAC500C20LNWK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20LNWK |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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.
Model Code: Airtac GAC F.R.L. Unit GAC500C20LNWK
| 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. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 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. |
| 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 GAC500C20LNWK Is Used
Textile Machinery
Feeds low-pressure air to large weaving looms where delicate yarn handling requires a 0.15-0.4 MPa operating range and fine 5 um filtration to protect intricate air-jet nozzles.
Carton Erectors
Conditions air for heavy-duty packaging lines that use 3/4in headers, ensuring consistent pneumatic gripping force while the 225 cc oil bowl minimizes maintenance interventions.
Lab Conveying Systems
Supports pneumatic tube transport in laboratories where lower pressure prevents material damage and the metal bowl withstands frequent cleaning and harsh sanitizing agents.
Is the Airtac GAC F.R.L. Unit GAC500C20LNWK the Right Air-Prep Unit?
Choose this model when a 3/4in line needs precise low-pressure control between 0.15-0.4 MPa (20-58 psi) alongside 5 um filtration for sensitive valves. The 5 um element traps far finer particles than the 40 um standard, demanding more frequent element changes to protect downstream instruments. If your application requires oil-free air downstream, you must omit the lubricator entirely and select a standalone filter-regulator instead. The PT thread default sets the gauge scale to MPa/psi, but you will need to supply your own gauge to read the set pressure. Stepping up to the GAC600 roughly doubles the flow envelope to 12000 L/min at 0.7 MPa inlet compared to this body's 7000 L/min curve, but the GAC500 offers a lighter 2460 g footprint and lower-pressure regulation. The 0.4 MPa ceiling is 44% of the standard 0.9 MPa maximum.
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 GAC500C20LNWK FAQ
This lower-pressure unit regulates from 0.15-0.4 MPa (20-58 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, weighs 2460 g, and uses ISO VG 32 lubricant.
The N in the ordering code signifies that no circular gauge is supplied from the factory. You can install your own gauge using the 1/4in connection on the body, allowing you to choose a specific scale or style that matches your operators' preferences.
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.
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