Airtac GAC F.R.L. Unit GAC50020LWK
The AirTAC Airtac GAC F.R.L. Unit GAC50020LWK 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 materialPC
- Drainsemi-auto + manual
- 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 GAC50020LWK
Delivering cleaned, lubricated air at a precisely controlled lower pressure, this AirTAC unit combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves heavy-duty circuits, while the 5 um element captures fine particulates before they reach sensitive valves. A circular gauge reading MPa/psi is fitted for the default PT thread.
Air passes through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat stays clean. The 108 cc condensate bowl and 225 cc oil sump reduce maintenance frequency compared to smaller bodies. This assembly includes a reverse-flow (reflux) valve, shown as a separate pneumatic symbol in the catalogue, and operates within the 0.15-0.4 MPa (20-58 psi) low-pressure band.
Airtac GAC F.R.L. Unit GAC50020LWK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020LWK |
|---|---|
| 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 | PC |
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAC F.R.L. Unit GAC50020LWK
| GAC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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). |
| (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 GAC50020LWK Is Used
Low-Force Pneumatic Presses
Regulates supply down to 0.4 MPa for light-touch assembly presses that deform or damage parts under high pressure.
Product Wrapping Lines
Feeds 3/4in header lines for flow-wrapping equipment where delicate film handling demands stable, low-torque actuation.
Laboratory Air Headers
Conditions main supply air for multi-station lab benches, using the 5 um filter to protect sensitive analytical instruments.
Is the Airtac GAC F.R.L. Unit GAC50020LWK the Right Air-Prep Unit?
Choose this 2460 g assembly when a machine requires stable low-pressure air delivered at high volume, as the catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet. The semi-auto and manual drain pair handles condensate on site, while the 5 um element suits instrument-air quality. Because the lubricator introduces oil mist downstream, select a separate filter-regulator if the line must remain oil-free. Replacement spares share the exact same body and port suffix: GAF500-20, GAR500-20 and GAL500-20. Keep in mind that the 0.4 MPa ceiling is 44% of the Standard type's 0.9 MPa maximum, so verify your actuators can operate within this lower range before ordering.
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 GAC50020LWK FAQ
This model operates at 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 functions between -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, and specific functional details for this valve should be confirmed from the official datasheet.
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
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