Airtac GAC F.R.L. Unit GAC500C20ALWK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20ALWK 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
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- 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 GAC500C20ALWK
Delivering cleaned, regulated and lubricated air for demanding pneumatics, this AirTAC F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves high-demand circuits, while the 5 um element captures fine particulates before they reach sensitive valves. A metal bowl houses the 108 cc condensate sump and 225 cc oil reservoir.
The lower-pressure type restricts regulation to 0.15-0.4 MPa (20-58 psi), making it unsuitable for systems that might later require higher actuator force. An automatic drain empties condensate without operator intervention, and a fitted circular gauge reads in MPa/psi for the default PT thread. The reverse-flow (reflux) valve is fitted, shown as a separate pneumatic symbol in the catalogue.
Airtac GAC F.R.L. Unit GAC500C20ALWK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20ALWK |
|---|---|
| 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 | 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.
Model Code: Airtac GAC F.R.L. Unit GAC500C20ALWK
| 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. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 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.
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 GAC500C20ALWK Is Used
Automated Assembly Lines
Feeds multi-station headers where a steady, low-pressure air supply operates delicate pick-and-place actuators without risking seal damage from over-pressurization.
Form Fill Seal Machines
Conditions air for continuous flow wrapping equipment, relying on the 5 um element to protect precision flow controls from abrasive particulate ingress.
Textile Manufacturing
Supplies regulated air to pneumatic looms and tensioning cylinders, utilizing the automatic drain to handle high condensate loads in humid environments.
Is the Airtac GAC F.R.L. Unit GAC500C20ALWK the Right Air-Prep Unit?
Choose this 2460 g assembly when a machine frame needs substantial air preparation without manual drain maintenance; the metal bowl suits harsher industrial settings. If the downstream line must remain oil-free, omit the lubricator and select a filter-regulator instead. The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, providing a sizing envelope that sits between the GAC400 and GAC600 bodies. Replacement spares share the 500-20 suffix: GAF500-20, GAR500-20 and GAL500-20. Because the L type tops out at 0.4 MPa, it provides only 44% of the standard 0.9 MPa ceiling.
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 GAC500C20ALWK 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, weighs 2460 g, and features a 108 cc drain bowl alongside a 225 cc oil bowl. The recommended lubricant is ISO VG 32.
The K indicates that a reverse-flow (reflux) valve is attached to the unit. The catalogue displays this as a distinct pneumatic symbol on its own page, representing an ordering difference for this specific assembly.
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 GAC500C20ALWK
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.