Airtac GAC F.R.L. Unit GAC50020LW
The AirTAC Airtac GAC F.R.L. Unit GAC50020LW 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 GAC50020LW
Delivering cleaned, lubricated air at a precisely set downstream pressure, the AirTAC GAC50020LW is a three-unit F.R.L. combination built around a 3/4in port. It pairs a 5 um filter, a regulator and a lubricator on a single L-shape bracket with quick mounting clamps. Because the lubricator sits last in the sequence, oil mist is introduced downstream of the regulator seat, preventing fouling of the internal pressure-control mechanism.
This lower-pressure type regulates between 0.15-0.4 MPa (20-58 psi), making it suitable for sensitive pneumatic circuits rather than high-force actuators. The assembly weighs 2460 g, requiring a solid panel or frame mount rather than tubing support. A circular gauge is fitted to read the set pressure in MPa/psi, and the standard 40 um element is upgraded here to a 5 um grade to trap finer particles for precision valves, accepting a more frequent element service cycle.
Airtac GAC F.R.L. Unit GAC50020LW Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020LW |
|---|---|
| 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 GAC50020LW
| 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. |
| (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 GAC50020LW Is Used
Precision Valve Arrays
Feeds clean, finely filtered 5 um air to low-pressure proportional valve banks in textile or packaging machinery, protecting tight clearances from grit.
Low-Force Assembly Lines
Conditions air for delicate pick-and-place actuators operating under 0.4 MPa, adding a controlled oil mist to extend gripper and cylinder seal life.
Laboratory Pneumatic Stations
Supplies stable, regulated pressure to multi-station lab benches where the 3/4in port handles the shared header flow without starving individual tools.
Is the Airtac GAC F.R.L. Unit GAC50020LW the Right Air-Prep Unit?
Choose this GAC500 body for substantial air flows, noting its catalogue flow curve is plotted to 7000 L/min at 0.7 MPa inlet, compared to the 6000 L/min envelope of the neighbouring GAC400. The PC bowl is paired with a semi-auto and manual drain, dumping condensate on pressure drops or on demand, while the 108 cc drain bowl and 225 cc oil bowl dictate the maintenance interval. If the downstream line must remain oil-free, omit the lubricator and choose a filter-regulator instead. Replacement spares share the 500-20 suffix: GAF500-20, GAR500-20 and GAL500-20. Because the lower-pressure type tops out at 0.4 MPa, it operates at roughly 44% of the 0.9 MPa ceiling available from the standard type, capping the output for any machine that might later need higher force.
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 GAC50020LW FAQ
It operates at 0.15-0.4 MPa (20-58 psi) with a max 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, the drain bowl holds 108 cc, the oil bowl holds 225 cc, the unit weighs 2460 g, and the recommended lubricant is ISO VG 32.
The W code specifies a 5 um element instead of the standard 40 um, trapping far finer particles for precision valves at the cost of more frequent element service. The L type code limits regulation to 0.4 MPa, meaning if the machine may ever need more pressure, the standard S type is the correct choice.
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Standard models are processed and dispatched in 3-5 business days.
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